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157 Commits

Author SHA1 Message Date
Yi Ding f7cc69b5ec have docs show up on the domain root 2023-07-24 10:55:57 -07:00
Logan 3e85a90b92 Merge pull request #25 from run-llama/logan/agolia_search 2023-07-24 09:41:49 -06:00
Logan Markewich 74ab98ddec add agolia search 2023-07-24 09:38:38 -06:00
Logan bff788b484 Merge pull request #24 from run-llama/logan/patch_storage_docs
fix storage example
2023-07-24 08:12:07 -06:00
Logan Markewich 3e1abd2c6c fix storage example 2023-07-24 08:11:27 -06:00
Yi Ding 79c76ea9d7 0.0.10 2023-07-24 06:03:35 -07:00
Yi Ding 6f2cb31d41 fixed tokenizer decoder 2023-07-24 06:02:16 -07:00
Yi Ding cc88141772 version 0.0.9 2023-07-24 05:29:42 -07:00
Yi Ding 02d9bb0518 the ESM export is causing issues with edge functions
Looks like there's another issue with axios. Will turn ESM bundles back
on once we fix it and the PDF issue
2023-07-24 05:22:14 -07:00
Yi Ding 5321fb3135 0.0.8 2023-07-24 05:19:46 -07:00
Yi Ding ea5038e4b7 disable PDF reader for now
Looks like it causes an issue with the esm package
2023-07-24 05:10:39 -07:00
Yi Ding b012207764 version 0.0.7
Also updated examples package.json to latest
2023-07-24 04:10:02 -07:00
Yi Ding 9fa6d4a8a7 make second arg in fromDocuments optional 2023-07-24 04:06:46 -07:00
yisding c77dd18f2d Merge pull request #22 from run-llama/logan/fix_persistance
fix persistance, align fromDocuments
2023-07-23 21:01:22 -07:00
Yi Ding bb7c0d7deb v0.0.6 2023-07-23 21:00:49 -07:00
Yi Ding 80d3fc9482 copy examples back to app/simple and tested them 2023-07-23 20:58:27 -07:00
Logan Markewich 79a721226d use proper camelCase for indexId 2023-07-23 21:22:10 -06:00
Logan Markewich ed36d41024 better type checking 2023-07-23 21:20:48 -06:00
Logan Markewich 9a15c8ece0 update storage example 2023-07-23 20:14:35 -06:00
Logan Markewich 9c5220ce75 fix tests 2023-07-23 19:28:14 -06:00
Logan Markewich 8c67635041 fix persistance, update fromDocuments 2023-07-23 19:26:17 -06:00
yisding fc7f35141a Merge pull request #21 from run-llama/logan/storage_demo
initial storage examples attempt
2023-07-21 15:54:26 -07:00
Logan Markewich fc65e6b97d initial storage examples attempt 2023-07-21 16:04:43 -06:00
Yi Ding 629bd3239a logan's fix 2023-07-21 11:48:49 -07:00
Yi Ding 31c99baf1c Merge branch 'main' of github.com:run-llama/LlamaIndexTS 2023-07-21 11:47:56 -07:00
Yi Ding b2810777ef copied simple examples outside of the apps folder
Makes it easier to get started although now they have to use npm instead
of pnpm
2023-07-21 11:47:00 -07:00
Logan 805d6fb81d Merge pull request #20 from run-llama/logan/patch_llama2
patch import for llamaduece
2023-07-21 12:06:54 -06:00
Logan Markewich 9c566b0530 patch import 2023-07-21 12:06:22 -06:00
Yi Ding daa14b8a5f Merge branch 'main' of github.com:run-llama/LlamaIndexTS 2023-07-21 11:03:29 -07:00
Yi Ding ed4fe4ac22 add pnpm install to the examples README 2023-07-21 11:02:48 -07:00
Simon Suo b76562061e Merge pull request #19 from run-llama/suo/update_docs_title_and_desc
Update docs title and meta description
2023-07-21 10:58:00 -07:00
Simon Suo baa91540cf wip 2023-07-21 10:57:08 -07:00
Simon Suo a594e22d2d Merge pull request #18 from run-llama/suo/update_github_link
Update Github link on docs
2023-07-21 10:50:28 -07:00
Simon Suo 91615a6602 update 2023-07-21 10:49:30 -07:00
Simon Suo 43144ae782 wip 2023-07-21 10:47:49 -07:00
Logan e927fc1800 Merge pull request #17 from run-llama/logan/starter_patch
replace -- chars
2023-07-21 11:31:14 -06:00
Logan Markewich a08e904834 replace -- chars 2023-07-21 11:30:30 -06:00
Logan 90429ab63d Merge pull request #16 from run-llama/logan/add_links_to_docs
patch various links
2023-07-21 11:24:55 -06:00
Logan Markewich abaab0caca patch links 2023-07-21 11:23:45 -06:00
Simon Suo bc5c2e5c7b Merge pull request #15 from run-llama/Disiok-patch-2
Update README.md
2023-07-21 10:17:09 -07:00
Simon Suo c3e4b37414 Update README.md 2023-07-21 10:16:59 -07:00
Simon Suo 63906798e8 Merge pull request #14 from run-llama/Disiok-patch-1
Update README.md
2023-07-21 10:12:17 -07:00
Simon Suo d7c2453c7d Update README.md 2023-07-21 10:11:40 -07:00
Yi Ding 6a61ea46bf publish 0.0.5 2023-07-21 09:33:00 -07:00
Yi Ding 5a765aa1d6 updated README 2023-07-21 09:32:23 -07:00
Yi Ding 3cab956f94 publish 0.0.4 2023-07-21 09:16:27 -07:00
Yi Ding c65d671ddb changeset 2023-07-21 09:15:39 -07:00
Yi Ding 985f3b52bb add README and CONTRIBUTING to dir and remove .turbo 2023-07-21 09:14:38 -07:00
Yi Ding 4636a763b0 removed gitignore from packages/core 2023-07-21 09:11:32 -07:00
Yi Ding f4ddf89b51 published 0.0.3 2023-07-21 09:08:30 -07:00
Yi Ding ca9410f702 try changeset 2023-07-21 09:07:38 -07:00
Yi Ding 50c0b04017 v0.0.2 2023-07-21 08:16:12 -07:00
Yi Ding 41464386d6 getting ready to publish 2023-07-21 08:13:09 -07:00
Yi Ding a07a94108d more persistence 2023-07-21 07:49:00 -07:00
Yi Ding a7cc8020db persistence and packaging 2023-07-21 07:32:36 -07:00
Yi Ding 761fa4d836 switch back to cjs default 2023-07-20 22:29:43 -07:00
Yi Ding ade5587a15 build stuff 2023-07-20 22:15:51 -07:00
Yi Ding 2db8a8c2e3 updated packages 2023-07-20 21:22:37 -07:00
Yi Ding 3ad826e358 doc build works thanks Logan! 2023-07-20 21:07:38 -07:00
Logan Markewich 87925a36e6 fix searchbar dependencies 2023-07-20 21:48:43 -06:00
Yi Ding fc6ff47fd2 replace all instances of yarn in docusaurus with pnpm 2023-07-20 20:37:49 -07:00
Yi Ding 17b22f4673 a few updates for the README 2023-07-20 19:48:55 -07:00
Yi Ding b033d0fbe9 Merge branch 'main' of github.com:run-llama/LlamaIndexTS 2023-07-20 18:19:34 -07:00
Yi Ding 122ab88fa5 missed a chatRepl 2023-07-20 18:17:35 -07:00
Logan Markewich 73c188761f fix some docs usage 2023-07-20 19:08:59 -06:00
Logan Markewich 0fbf7b4ace update examples and docs 2023-07-20 19:08:59 -06:00
Yi Ding f9394ebb22 missing package in pnpm-lock 2023-07-20 17:29:24 -07:00
Yi Ding 05f2f388d9 Merge branch 'main' of github.com:run-llama/LlamaIndexTS 2023-07-20 17:28:54 -07:00
Yi Ding d489a2120f allow asQueryEngine and asRetriever to take options 2023-07-20 17:15:11 -07:00
Logan Markewich 8954a80e04 add search bar 2023-07-20 17:06:39 -06:00
Logan Markewich f264211550 link to llama2 demo 2023-07-20 16:38:12 -06:00
Logan Markewich 4d990d012c remove some 'a' methods 2023-07-20 16:35:47 -06:00
Logan Markewich 2683121ee1 Update sidebar ordering, add storagecontext docs 2023-07-20 16:34:27 -06:00
Yi Ding 08c2d4620f removed ChatGPTLLMPredictor class 2023-07-19 21:25:51 -07:00
Yi Ding 643ad626cd deuce LLM class 2023-07-19 09:17:01 -07:00
Yi Ding 2619d4175d Fixed the context window issue.
Putting in a max tokens into the request was a mistake.
2023-07-18 23:17:44 -07:00
Yi Ding b00821dbe9 missing package in lockfile 2023-07-18 21:20:13 -07:00
Yi Ding b0a742c3e6 api docs updated with latest 2023-07-18 21:06:24 -07:00
yisding 9d0cadfc5f Merge pull request #13 from run-llama/logan/docs_finish
Finish Docs
2023-07-18 20:58:33 -07:00
Yi Ding 4ea034082b changed default response synthesizer to compact 2023-07-18 20:58:01 -07:00
Logan Markewich 2298f42c18 remove advanced concepts section 2023-07-18 20:35:37 -06:00
Logan Markewich a67bfe26ed fix link to node_parser 2023-07-18 19:58:34 -06:00
Logan Markewich d73ac8e718 Update high-level concetps 2023-07-18 19:54:06 -06:00
Logan Markewich 213a68bb0f round out low level modules 2023-07-18 19:13:05 -06:00
Logan Markewich 5bba0de1f3 reorder 2023-07-18 16:44:28 -06:00
Logan Markewich f1d609df5f docs re-generate 2023-07-18 13:57:05 -06:00
Logan Markewich f9f6dc6985 link in modules index 2023-07-18 13:13:42 -06:00
Logan Markewich 4ae690612a flesh out more 2023-07-18 13:09:07 -06:00
Logan Markewich dc74b40c7a add end-to-end examples 2023-07-18 11:48:53 -06:00
Logan Markewich b6b2598119 better org 2023-07-18 09:31:51 -06:00
Yi Ding 5cd54e2f98 few more fixes 2023-07-17 21:55:59 -07:00
Yi Ding 8b7a94f8c5 fix 2023-07-17 21:51:14 -07:00
Yi Ding 44ab4d838f no more a-prefix 2023-07-17 21:49:45 -07:00
Yi Ding 372ac1a24b move all indexes into indices folder 2023-07-17 21:32:29 -07:00
Yi Ding 09f02ff9b3 pnpm upgrade 2023-07-17 21:31:28 -07:00
yisding 9dc30f5385 Merge pull request #12 from run-llama/li_fix
ListIndex fix
2023-07-17 20:43:01 -07:00
Sourabh Desai 5871959c15 remove console log 2023-07-18 02:49:20 +00:00
Logan Markewich e108757255 add more structure 2023-07-17 20:48:48 -06:00
Logan Markewich 3cdc7e3feb re-org top level 2023-07-17 20:48:36 -06:00
Logan Markewich bc1a0fe651 undo organization 2023-07-17 20:48:27 -06:00
Logan Markewich 5752fb6921 organize modules 2023-07-17 20:48:19 -06:00
Logan Markewich f36f4b2dae Revert "organize modules"
This reverts commit 1a3940376a.
2023-07-17 20:46:37 -06:00
Logan Markewich 8ee5503505 Revert "undo organization"
This reverts commit abafa6014c.
2023-07-17 20:46:37 -06:00
Logan Markewich da7199b3e9 Revert "re-org top level"
This reverts commit 452b678450.
2023-07-17 20:46:37 -06:00
Logan Markewich 67be6f373a Revert "add more structure"
This reverts commit d5cbaa9ec7.
2023-07-17 20:46:37 -06:00
Logan Markewich d5cbaa9ec7 add more structure 2023-07-17 20:42:26 -06:00
Sourabh Desai e7206a7dea simplify test 2023-07-18 02:20:49 +00:00
Sourabh Desai 5cdab4e311 make ListIndex query engine use CompactAndRefine response builder by default 2023-07-18 02:08:22 +00:00
Sourabh Desai ee293da4f6 update test 2023-07-18 01:41:27 +00:00
Sourabh Desai 5a50ed2dfe udpate ListIndex.fromDocuments method signature 2023-07-18 01:39:20 +00:00
Logan Markewich 452b678450 re-org top level 2023-07-17 16:53:57 -06:00
Logan Markewich abafa6014c undo organization 2023-07-17 16:53:22 -06:00
Logan Markewich 1a3940376a organize modules 2023-07-17 16:30:32 -06:00
Yi Ding 775be4da64 add next as a dev dep on lint rules 2023-07-17 15:02:40 -07:00
yisding fcd70abc1f Merge pull request #11 from run-llama/docs
doc site
2023-07-17 10:43:26 -07:00
Yi Ding 737623443c add something about contributing to the docs 2023-07-17 10:38:34 -07:00
Yi Ding 07c5aeba13 built out the docs 2023-07-17 09:18:39 -07:00
Yi Ding d16113adbb Added JSDoc to our classes 2023-07-14 14:37:41 -07:00
Yi Ding 4649536f33 doc site 2023-07-12 20:53:17 -07:00
Yi Ding df4b1ad8a3 new LLM interface 2023-07-11 10:18:30 -07:00
Yi Ding 6eb44a4c13 Merge branch 'main' into llm 2023-07-10 07:34:04 -07:00
Yi Ding cdf1685f7c new llm abstraction from Simon 2023-07-10 07:24:59 -07:00
yisding 2f468ab132 Merge pull request #8 from run-llama/stream_responses
[Feature] CallbackManager with onLLMStream and onRetrieve
2023-07-10 07:19:15 -07:00
yisding 1e510093ef Merge pull request #10 from run-llama/listindex_fix
fix to get listindex script working
2023-07-10 07:12:20 -07:00
Sourabh Desai f9520d9374 small bugs 2023-07-10 08:14:32 +00:00
Sourabh Desai 2c141d2528 remove spammy console.log 2023-07-10 07:17:14 +00:00
Sourabh Desai bcca3b896c fix to get listindex script working 2023-07-10 06:58:18 +00:00
Abdul Jamjoom 0bec460937 clean-up 2023-07-09 16:46:34 -07:00
Abdul Jamjoom 5d8d344e1f updated tests 2023-07-09 16:42:58 -07:00
Abdul Jamjoom 81e22587eb add callback and event tracking 2023-07-09 16:31:04 -07:00
Yi Ding 539ec0fe3d try smaller chunks 2023-07-06 21:41:13 -07:00
Yi Ding ebf3bc19fd ContextChatEngine v1 2023-07-06 20:59:10 -07:00
Yi Ding 204b8f5316 chatengine 2023-07-06 08:53:09 -07:00
yisding 71dd461a47 Merge pull request #9 from run-llama/subquestion
SubQuestionQueryEngine
2023-07-05 19:39:11 -07:00
Yi Ding 0c881c8fde finished subquestion demo 2023-07-05 08:37:41 -07:00
Abdul Jamjoom 35a6795559 polish 2023-07-04 22:34:49 -07:00
Abdul Jamjoom 968109455d Create the CallbackManager with onLLMStream and onRetrieve 2023-07-04 21:53:45 -07:00
Yi Ding 815a3416f2 more work 2023-07-04 20:53:36 -07:00
Yi Ding 407069ca27 prompt work for question generator 2023-07-04 14:08:04 -07:00
Yi Ding 29d042175e initial work 2023-07-04 14:06:49 -07:00
yisding bbf936e9b4 Merge pull request #7 from run-llama/listindex
List Index
2023-07-04 10:18:35 -07:00
Yi Ding 2212793420 more housekeeping 2023-07-04 09:47:44 -07:00
Abdul Jamjoom 5487de8c37 Merge branch 'main' of github.com:run-llama/llamascript into stream_responses 2023-07-04 09:34:46 -07:00
Abdul Jamjoom 2a038c00ec unstable checkpoint 2023-07-04 09:27:54 -07:00
Yi Ding d6c6aefd0d some housekeeping 2023-07-04 09:22:16 -07:00
Yi Ding 4516363097 make persistence optional 2023-07-04 08:56:31 -07:00
Yi Ding 69dd6d4efa make persistence optional 2023-07-04 08:54:22 -07:00
Sourabh Desai 9ea840142b changes to get test script running 2023-07-04 07:40:41 +00:00
Sourabh Desai a1c45294b3 updates for compilation errors 2023-07-04 05:55:51 +00:00
Sourabh Desai c2ef5057b3 add init functions for list index. Still needs some refactoring + testing 2023-07-03 22:59:28 +00:00
Sourabh Desai b87e6d9ced finish implementation for llm list index retriever 2023-07-03 18:31:32 +00:00
Sourabh Desai 8d618a6bc3 better structuring + adding missing functionality 2023-07-03 16:14:53 +00:00
Sourabh Desai 8d8bee5263 start implementing list index retrievers 2023-07-03 06:42:00 +00:00
Sourabh Desai ed924641ca start implemetation of list index 2023-07-03 05:40:05 +00:00
Yi Ding ce61f9660b turbo update 2023-06-29 21:01:49 -07:00
Yi Ding 072b13cff0 use servicecontext/storagecontext 2023-06-29 21:00:36 -07:00
yisding ff274dde1d Merge pull request #5 from run-llama/nodev3
initial nodev3 work
2023-06-29 17:47:10 -07:00
245 changed files with 36114 additions and 1718 deletions
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# Changesets
Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
with multi-package repos, or single-package repos to help you version and publish your code. You can
find the full documentation for it [in our repository](https://github.com/changesets/changesets)
We have a quick list of common questions to get you started engaging with this project in
[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)
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{
"$schema": "https://unpkg.com/@changesets/config@2.3.1/schema.json",
"changelog": "@changesets/cli/changelog",
"commit": false,
"fixed": [],
"linked": [],
"access": "public",
"baseBranch": "main",
"updateInternalDependencies": "patch",
"ignore": []
}
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# vercel
.vercel
storage/
dist/
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{
"editor.tabSize": 2,
"editor.formatOnSave": true,
"editor.defaultFormatter": "esbenp.prettier-vscode"
"editor.defaultFormatter": "esbenp.prettier-vscode",
"[xml]": {
"editor.defaultFormatter": "redhat.vscode-xml"
}
}
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# Contributing
## Structure
This is a monorepo built with Turborepo
Right now there are two packages of importance:
packages/core which is the main NPM library llamaindex
apps/simple is where the demo code lives
### Turborepo docs
You can checkout how Turborepo works using the built in [README-turborepo.md](README-turborepo.md)
## Getting Started
Install NodeJS. Preferably v18 using nvm or n.
Inside the LlamaIndexTS directory:
```
npm i -g pnpm ts-node
pnpm install
```
Note: we use pnpm in this repo, which has a lot of the same functionality and CLI options as npm but it does do some things better in a monorepo, like centralizing dependencies and caching.
PNPM's has documentation on its [workspace feature](https://pnpm.io/workspaces) and Turborepo had some [useful documentation also](https://turbo.build/repo/docs/core-concepts/monorepos/running-tasks).
### Running Typescript
When we publish to NPM we will have a tsc compiled version of the library in JS. For now, the easiest thing to do is use ts-node.
### Test cases
To run them, run
```
pnpm run test
```
To write new test cases write them in packages/core/src/tests
We use Jest https://jestjs.io/ to write our test cases. Jest comes with a bunch of built in assertions using the expect function: https://jestjs.io/docs/expect
### Demo applications
You can create new demo applications in the apps folder. Just run pnpm init in the folder after you create it to create its own package.json
### Installing packages
To install packages for a specific package or demo application, run
```
pnpm add [NPM Package] --filter [package or application i.e. core or simple]
```
To install packages for every package or application run
```
pnpm add -w [NPM Package]
```
### Docs
To contribute to the docs, go to the docs website folder and run the Docusaurus instance.
```bash
cd apps/docs
pnpm install
pnpm start
```
That should start a webserver which will serve the docs on https://localhost:3000
Any changes you make should be reflected in the browser. If you need to regenerate the API docs and find that your TSDoc isn't getting the updates, feel free to remove apps/docs/api. It will automatically regenerate itself when you run pnpm start again.
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# LlamaScript: LlamaIndex for TS/JS
# LlamaIndex.TS
## Structure
LlamaIndex is a data framework for your LLM application.
This is a monorepo built with Turborepo
Use your own data with large language models (LLMs, OpenAI ChatGPT and others) in Typescript and Javascript.
Right now there are two packages of importance:
Documentation: https://ts.llamaindex.ai/
packages/core which is the main NPM library @llamaindex/core
## What is LlamaIndex.TS?
apps/simple is where the demo code lives
LlamaIndex.TS aims to be a lightweight, easy to use set of libraries to help you integrate large language models into your applications with your own data.
### Turborepo docs
## Getting started with an example:
You can checkout how Turborepo works using the built in [README-turborepo.md](README-turborepo.md)
LlamaIndex.TS requries Node v18 or higher. You can download it from https://nodejs.org or use https://nvm.sh (our preferred option).
## Getting Started
In a new folder:
Install NodeJS. Preferably v18 using nvm or n.
Inside the llamascript directory:
```
npm i -g pnpm ts-node
pnpm install
```bash
export OPEN_AI_KEY="sk-......" # Replace with your key from https://platform.openai.com/account/api-keys
pnpm init
pnpm install typescript
pnpm exec tsc -init # if needed
pnpm install llamaindex
pnpm install @types/node
```
Note: we use pnpm in this repo, which has a lot of the same functionality and CLI options as npm but it does do some things better in a monorepo, like centralizing dependencies and caching.
Create the file example.ts
PNPM's has documentation on its [workspace feature](https://pnpm.io/workspaces) and Turborepo had some [useful documentation also](https://turbo.build/repo/docs/core-concepts/monorepos/running-tasks).
```ts
// example.ts
import fs from "fs/promises";
import { Document, VectorStoreIndex } from "llamaindex";
### Running Typescript
async function main() {
// Load essay from abramov.txt in Node
const essay = await fs.readFile(
"node_modules/llamaindex/examples/abramov.txt",
"utf-8"
);
When we publish to NPM we will have a tsc compiled version of the library in JS. For now, the easiest thing to do is use ts-node.
// Create Document object with essay
const document = new Document({ text: essay });
### Test cases
// Split text and create embeddings. Store them in a VectorStoreIndex
const index = await VectorStoreIndex.fromDocuments([document]);
To run them, run
// Query the index
const queryEngine = index.asQueryEngine();
const response = await queryEngine.query(
"What did the author do in college?"
);
```
pnpm run test
// Output response
console.log(response.toString());
}
main();
```
To write new test cases write them in packages/core/src/tests
Then you can run it using
We use Jest https://jestjs.io/ to write our test cases. Jest comes with a bunch of built in assertions using the expect function: https://jestjs.io/docs/expect
### Demo applications
You can create new demo applications in the apps folder. Just run pnpm init in the folder after you create it to create its own package.json
### Installing packages
To install packages for a specific package or demo application, run
```
pnpm add [NPM Package] --filter [package or application i.e. core or simple]
```bash
pnpm dlx ts-node example.ts
```
To install packages for every package or application run
## Core concepts for getting started:
```
pnpm add -w [NPM Package]
```
- [Document](packages/core/src/Node.ts): A document represents a text file, PDF file or other contiguous piece of data.
- [Node](packages/core/src/Node.ts): The basic data building block. Most commonly, these are parts of the document split into manageable pieces that are small enough to be fed into an embedding model and LLM.
- [Embedding](packages/core/src/Embedding.ts): Embeddings are sets of floating point numbers which represent the data in a Node. By comparing the similarity of embeddings, we can derive an understanding of the similarity of two pieces of data. One use case is to compare the embedding of a question with the embeddings of our Nodes to see which Nodes may contain the data needed to answer that quesiton.
- [Indices](packages/core/src/indices/): Indices store the Nodes and the embeddings of those nodes. QueryEngines retrieve Nodes from these Indices using embedding similarity.
- [QueryEngine](packages/core/src/QueryEngine.ts): Query engines are what generate the query you put in and give you back the result. Query engines generally combine a pre-built prompt with selected Nodes from your Index to give the LLM the context it needs to answer your query.
- [ChatEngine](packages/core/src/ChatEngine.ts): A ChatEngine helps you build a chatbot that will interact with your Indices.
- [SimplePrompt](packages/core/src/Prompt.ts): A simple standardized function call definition that takes in inputs and formats them in a template literal. SimplePrompts can be specialized using currying and combined using other SimplePrompt functions.
## Contributing:
We are in the very early days of LlamaIndex.TS. If youre interested in hacking on it with us check out our [contributing guide](CONTRIBUTING.md)
## Bugs? Questions?
Please join our Discord! https://discord.com/invite/eN6D2HQ4aX
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module.exports = {
root: true,
extends: ["custom"],
};
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# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
# dependencies
# Dependencies
/node_modules
/.pnp
.pnp.js
# testing
/coverage
# next.js
/.next/
/out/
# production
# Production
/build
# misc
# Generated files
.docusaurus
.cache-loader
# Misc
.DS_Store
*.pem
# debug
npm-debug.log*
yarn-debug.log*
yarn-error.log*
# local env files
.env.local
.env.development.local
.env.test.local
.env.production.local
# vercel
.vercel
npm-debug.log*
yarn-debug.log*
yarn-error.log*
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# Website
This website is built using [Docusaurus 2](https://docusaurus.io/), a modern static website generator.
### Installation
```
$ pnpm
```
### Local Development
```
$ pnpm start
```
This command starts a local development server and opens up a browser window. Most changes are reflected live without having to restart the server.
However, the searchbar may not function with `yarn start`. Instead, run `yarn build` and launch a server:
```
$ npx http-server ./build
```
### Build
```
$ pnpm build
```
This command generates static content into the `build` directory and can be served using any static contents hosting service.
### Deployment
Using SSH:
```
$ USE_SSH=true pnpm deploy
```
Not using SSH:
```
$ GIT_USER=<Your GitHub username> pnpm deploy
```
If you are using GitHub pages for hosting, this command is a convenient way to build the website and push to the `gh-pages` branch.
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## Getting Started
First, run the development server:
```bash
yarn dev
```
Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
You can start editing the page by modifying `pages/index.js`. The page auto-updates as you edit the file.
[API routes](https://nextjs.org/docs/api-routes/introduction) can be accessed on [http://localhost:3000/api/hello](http://localhost:3000/api/hello). This endpoint can be edited in `pages/api/hello.js`.
The `pages/api` directory is mapped to `/api/*`. Files in this directory are treated as [API routes](https://nextjs.org/docs/api-routes/introduction) instead of React pages.
## Learn More
To learn more about Next.js, take a look at the following resources:
- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
- [Learn Next.js](https://nextjs.org/learn/foundations/about-nextjs) - an interactive Next.js tutorial.
You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!
## Deploy on Vercel
The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_source=github.com&utm_medium=referral&utm_campaign=turborepo-readme) from the creators of Next.js.
Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.
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export default function RootLayout({
children,
}: {
children: React.ReactNode;
}) {
return (
<html lang="en">
<body>{children}</body>
</html>
);
}
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import { Button, Header } from "ui";
export default function Page() {
return (
<>
<Header text="Docs" />
<Button />
</>
);
}
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module.exports = {
presets: [require.resolve('@docusaurus/core/lib/babel/preset')],
};
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label: "API"
position: 6
@@ -0,0 +1,81 @@
---
id: "BaseEmbedding"
title: "Class: BaseEmbedding"
sidebar_label: "BaseEmbedding"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- **`BaseEmbedding`**
↳ [`OpenAIEmbedding`](OpenAIEmbedding.md)
## Constructors
### constructor
**new BaseEmbedding**()
## Methods
### getQueryEmbedding
`Abstract` **getQueryEmbedding**(`query`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Defined in
[Embedding.ts:206](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L206)
___
### getTextEmbedding
`Abstract` **getTextEmbedding**(`text`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Defined in
[Embedding.ts:205](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L205)
___
### similarity
**similarity**(`embedding1`, `embedding2`, `mode?`): `number`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `embedding1` | `number`[] | `undefined` |
| `embedding2` | `number`[] | `undefined` |
| `mode` | [`SimilarityType`](../enums/SimilarityType.md) | `SimilarityType.DEFAULT` |
#### Returns
`number`
#### Defined in
[Embedding.ts:197](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L197)
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---
id: "BaseIndex"
title: "Class: BaseIndex<T>"
sidebar_label: "BaseIndex"
sidebar_position: 0
custom_edit_url: null
---
Indexes are the data structure that we store our nodes and embeddings in so
they can be retrieved for our queries.
## Type parameters
| Name |
| :------ |
| `T` |
## Hierarchy
- **`BaseIndex`**
↳ [`ListIndex`](ListIndex.md)
↳ [`VectorStoreIndex`](VectorStoreIndex.md)
## Constructors
### constructor
**new BaseIndex**<`T`\>(`init`)
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | [`BaseIndexInit`](../interfaces/BaseIndexInit.md)<`T`\> |
#### Defined in
[indices/BaseIndex.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L104)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Defined in
[indices/BaseIndex.ts:99](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L99)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Defined in
[indices/BaseIndex.ts:101](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L101)
___
### indexStruct
**indexStruct**: `T`
#### Defined in
[indices/BaseIndex.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L102)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[indices/BaseIndex.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L97)
___
### storageContext
**storageContext**: [`StorageContext`](../interfaces/StorageContext.md)
#### Defined in
[indices/BaseIndex.ts:98](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L98)
___
### vectorStore
`Optional` **vectorStore**: `VectorStore`
#### Defined in
[indices/BaseIndex.ts:100](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L100)
## Methods
### asQueryEngine
`Abstract` **asQueryEngine**(`options?`): [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
Create a new query engine from the index. It will also create a retriever
and response synthezier if they are not provided.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | `Object` | you can supply your own custom Retriever and ResponseSynthesizer |
| `options.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) | - |
| `options.retriever?` | [`BaseRetriever`](../interfaces/BaseRetriever.md) | - |
#### Returns
[`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Defined in
[indices/BaseIndex.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L124)
___
### asRetriever
`Abstract` **asRetriever**(`options?`): [`BaseRetriever`](../interfaces/BaseRetriever.md)
Create a new retriever from the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | `any` |
#### Returns
[`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Defined in
[indices/BaseIndex.ts:117](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L117)
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---
id: "BaseNode"
title: "Class: BaseNode"
sidebar_label: "BaseNode"
sidebar_position: 0
custom_edit_url: null
---
Generic abstract class for retrievable nodes
## Hierarchy
- **`BaseNode`**
↳ [`TextNode`](TextNode.md)
## Constructors
### constructor
**new BaseNode**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`BaseNode`](BaseNode.md)\> |
#### Defined in
[Node.ts:48](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L48)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L39)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L38)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L42)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L45)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L104)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L124)
___
### getContent
`Abstract` **getContent**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Defined in
[Node.ts:54](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L54)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L116)
___
### getMetadataStr
`Abstract` **getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Defined in
[Node.ts:55](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L55)
___
### getType
`Abstract` **getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Defined in
[Node.ts:52](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L52)
___
### setContent
`Abstract` **setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `any` |
#### Returns
`void`
#### Defined in
[Node.ts:56](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L56)
@@ -0,0 +1,83 @@
---
id: "CallbackManager"
title: "Class: CallbackManager"
sidebar_label: "CallbackManager"
sidebar_position: 0
custom_edit_url: null
---
## Implements
- `CallbackManagerMethods`
## Constructors
### constructor
**new CallbackManager**(`handlers?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `handlers?` | `CallbackManagerMethods` |
#### Defined in
[callbacks/CallbackManager.ts:68](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L68)
## Properties
### onLLMStream
`Optional` **onLLMStream**: (`params`: [`StreamCallbackResponse`](../interfaces/StreamCallbackResponse.md)) => `void` \| `Promise`<`void`\>
#### Type declaration
▸ (`params`): `void` \| `Promise`<`void`\>
##### Parameters
| Name | Type |
| :------ | :------ |
| `params` | [`StreamCallbackResponse`](../interfaces/StreamCallbackResponse.md) |
##### Returns
`void` \| `Promise`<`void`\>
#### Implementation of
CallbackManagerMethods.onLLMStream
#### Defined in
[callbacks/CallbackManager.ts:65](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L65)
___
### onRetrieve
`Optional` **onRetrieve**: (`params`: [`RetrievalCallbackResponse`](../interfaces/RetrievalCallbackResponse.md)) => `void` \| `Promise`<`void`\>
#### Type declaration
▸ (`params`): `void` \| `Promise`<`void`\>
##### Parameters
| Name | Type |
| :------ | :------ |
| `params` | [`RetrievalCallbackResponse`](../interfaces/RetrievalCallbackResponse.md) |
##### Returns
`void` \| `Promise`<`void`\>
#### Implementation of
CallbackManagerMethods.onRetrieve
#### Defined in
[callbacks/CallbackManager.ts:66](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L66)
@@ -0,0 +1,114 @@
---
id: "ChatGPTLLMPredictor"
title: "Class: ChatGPTLLMPredictor"
sidebar_label: "ChatGPTLLMPredictor"
sidebar_position: 0
custom_edit_url: null
---
ChatGPTLLMPredictor is a predictor that uses GPT.
## Implements
- [`BaseLLMPredictor`](../interfaces/BaseLLMPredictor.md)
## Constructors
### constructor
**new ChatGPTLLMPredictor**(`props?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `props?` | `Partial`<[`ChatGPTLLMPredictor`](ChatGPTLLMPredictor.md)\> |
#### Defined in
[LLMPredictor.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L26)
## Properties
### callbackManager
`Optional` **callbackManager**: [`CallbackManager`](CallbackManager.md)
#### Defined in
[LLMPredictor.ts:24](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L24)
___
### languageModel
**languageModel**: [`OpenAI`](OpenAI.md)
#### Defined in
[LLMPredictor.ts:23](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L23)
___
### model
**model**: ``"gpt-3.5-turbo"`` \| ``"gpt-3.5-turbo-16k"`` \| ``"gpt-4"`` \| ``"gpt-4-32k"``
#### Defined in
[LLMPredictor.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L21)
___
### retryOnThrottling
• **retryOnThrottling**: `boolean`
#### Defined in
[LLMPredictor.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L22)
## Methods
### getLlmMetadata
▸ **getLlmMetadata**(): `Promise`<`void`\>
#### Returns
`Promise`<`void`\>
#### Implementation of
[BaseLLMPredictor](../interfaces/BaseLLMPredictor.md).[getLlmMetadata](../interfaces/BaseLLMPredictor.md#getllmmetadata)
#### Defined in
[LLMPredictor.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L45)
___
### predict
▸ **predict**(`prompt`, `input?`, `parentEvent?`, `logProgress?`): `Promise`<`string`\>
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `prompt` | `string` \| [`SimplePrompt`](../modules.md#simpleprompt) | `undefined` |
| `input?` | `Record`<`string`, `string`\> | `undefined` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) | `undefined` |
| `logProgress` | `boolean` | `false` |
#### Returns
`Promise`<`string`\>
#### Implementation of
[BaseLLMPredictor](../interfaces/BaseLLMPredictor.md).[predict](../interfaces/BaseLLMPredictor.md#predict)
#### Defined in
[LLMPredictor.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L49)
@@ -0,0 +1,106 @@
---
id: "CompactAndRefine"
title: "Class: CompactAndRefine"
sidebar_label: "CompactAndRefine"
sidebar_position: 0
custom_edit_url: null
---
CompactAndRefine is a slight variation of Refine that first compacts the text chunks into the smallest possible number of chunks.
## Hierarchy
- [`Refine`](Refine.md)
**`CompactAndRefine`**
## Constructors
### constructor
**new CompactAndRefine**(`serviceContext`, `textQATemplate?`, `refineTemplate?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `textQATemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
| `refineTemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
#### Inherited from
[Refine](Refine.md).[constructor](Refine.md#constructor)
#### Defined in
[ResponseSynthesizer.ts:78](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L78)
## Properties
### refineTemplate
**refineTemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Inherited from
[Refine](Refine.md).[refineTemplate](Refine.md#refinetemplate)
#### Defined in
[ResponseSynthesizer.ts:76](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L76)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Inherited from
[Refine](Refine.md).[serviceContext](Refine.md#servicecontext)
#### Defined in
[ResponseSynthesizer.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L74)
___
### textQATemplate
**textQATemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Inherited from
[Refine](Refine.md).[textQATemplate](Refine.md#textqatemplate)
#### Defined in
[ResponseSynthesizer.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L75)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`, `prevResponse?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
| `prevResponse?` | `string` |
#### Returns
`Promise`<`string`\>
#### Overrides
[Refine](Refine.md).[getResponse](Refine.md#getresponse)
#### Defined in
[ResponseSynthesizer.ts:181](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L181)
@@ -0,0 +1,148 @@
---
id: "CondenseQuestionChatEngine"
title: "Class: CondenseQuestionChatEngine"
sidebar_label: "CondenseQuestionChatEngine"
sidebar_position: 0
custom_edit_url: null
---
CondenseQuestionChatEngine is used in conjunction with a Index (for example VectorStoreIndex).
It does two steps on taking a user's chat message: first, it condenses the chat message
with the previous chat history into a question with more context.
Then, it queries the underlying Index using the new question with context and returns
the response.
CondenseQuestionChatEngine performs well when the input is primarily questions about the
underlying data. It performs less well when the chat messages are not questions about the
data, or are very referential to previous context.
## Implements
- [`ChatEngine`](../interfaces/ChatEngine.md)
## Constructors
### constructor
**new CondenseQuestionChatEngine**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.chatHistory` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `init.condenseMessagePrompt?` | [`SimplePrompt`](../modules.md#simpleprompt) |
| `init.queryEngine` | [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md) |
| `init.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ChatEngine.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L75)
## Properties
### chatHistory
**chatHistory**: [`ChatMessage`](../interfaces/ChatMessage.md)[]
#### Defined in
[ChatEngine.ts:71](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L71)
___
### condenseMessagePrompt
**condenseMessagePrompt**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ChatEngine.ts:73](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L73)
___
### queryEngine
**queryEngine**: [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Defined in
[ChatEngine.ts:70](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L70)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ChatEngine.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L72)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[chat](../interfaces/ChatEngine.md#chat)
#### Defined in
[ChatEngine.ts:100](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L100)
___
### condenseQuestion
`Private` **condenseQuestion**(`chatHistory`, `question`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `chatHistory` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `question` | `string` |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Defined in
[ChatEngine.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L89)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[reset](../interfaces/ChatEngine.md#reset)
#### Defined in
[ChatEngine.ts:118](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L118)
@@ -0,0 +1,111 @@
---
id: "ContextChatEngine"
title: "Class: ContextChatEngine"
sidebar_label: "ContextChatEngine"
sidebar_position: 0
custom_edit_url: null
---
ContextChatEngine uses the Index to get the appropriate context for each query.
The context is stored in the system prompt, and the chat history is preserved,
ideally allowing the appropriate context to be surfaced for each query.
## Implements
- [`ChatEngine`](../interfaces/ChatEngine.md)
## Constructors
### constructor
**new ContextChatEngine**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `init.chatModel?` | [`OpenAI`](OpenAI.md) |
| `init.retriever` | [`BaseRetriever`](../interfaces/BaseRetriever.md) |
#### Defined in
[ChatEngine.ts:133](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L133)
## Properties
### chatHistory
**chatHistory**: [`ChatMessage`](../interfaces/ChatMessage.md)[]
#### Defined in
[ChatEngine.ts:131](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L131)
___
### chatModel
**chatModel**: [`OpenAI`](OpenAI.md)
#### Defined in
[ChatEngine.ts:130](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L130)
___
### retriever
**retriever**: [`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Defined in
[ChatEngine.ts:129](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L129)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[chat](../interfaces/ChatEngine.md#chat)
#### Defined in
[ChatEngine.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L144)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[reset](../interfaces/ChatEngine.md#reset)
#### Defined in
[ChatEngine.ts:182](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L182)
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---
id: "Document"
title: "Class: Document"
sidebar_label: "Document"
sidebar_position: 0
custom_edit_url: null
---
A document is just a special text node with a docId.
## Hierarchy
- [`TextNode`](TextNode.md)
**`Document`**
## Constructors
### constructor
**new Document**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`Document`](Document.md)\> |
#### Overrides
[TextNode](TextNode.md).[constructor](TextNode.md#constructor)
#### Defined in
[Node.ts:216](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L216)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Inherited from
[TextNode](TextNode.md).[embedding](TextNode.md#embedding)
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L39)
___
### endCharIdx
`Optional` **endCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[endCharIdx](TextNode.md#endcharidx)
#### Defined in
[Node.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L139)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedEmbedMetadataKeys](TextNode.md#excludedembedmetadatakeys)
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedLlmMetadataKeys](TextNode.md#excludedllmmetadatakeys)
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[hash](TextNode.md#hash)
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Inherited from
[TextNode](TextNode.md).[id_](TextNode.md#id_)
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L38)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[metadata](TextNode.md#metadata)
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L42)
___
### metadataSeparator
**metadataSeparator**: `string` = `"\n"`
#### Inherited from
[TextNode](TextNode.md).[metadataSeparator](TextNode.md#metadataseparator)
#### Defined in
[Node.ts:142](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L142)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[relationships](TextNode.md#relationships)
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L45)
___
### startCharIdx
`Optional` **startCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[startCharIdx](TextNode.md#startcharidx)
#### Defined in
[Node.ts:138](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L138)
___
### text
**text**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[text](TextNode.md#text)
#### Defined in
[Node.ts:137](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L137)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Inherited from
TextNode.childNodes
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L104)
___
### docId
`get` **docId**(): `string`
#### Returns
`string`
#### Defined in
[Node.ts:225](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L225)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.nextNode
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Inherited from
TextNode.nodeId
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.parentNode
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.prevNode
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.sourceNode
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
[TextNode](TextNode.md).[asRelatedNodeInfo](TextNode.md#asrelatednodeinfo)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L124)
___
### generateHash
**generateHash**(): `void`
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[generateHash](TextNode.md#generatehash)
#### Defined in
[Node.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L149)
___
### getContent
**getContent**(`metadataMode?`): `string`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) | `MetadataMode.NONE` |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getContent](TextNode.md#getcontent)
#### Defined in
[Node.ts:157](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L157)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Inherited from
[TextNode](TextNode.md).[getEmbedding](TextNode.md#getembedding)
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L116)
___
### getMetadataStr
**getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getMetadataStr](TextNode.md#getmetadatastr)
#### Defined in
[Node.ts:162](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L162)
___
### getNodeInfo
**getNodeInfo**(): `Object`
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `end` | `undefined` \| `number` |
| `start` | `undefined` \| `number` |
#### Inherited from
[TextNode](TextNode.md).[getNodeInfo](TextNode.md#getnodeinfo)
#### Defined in
[Node.ts:187](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L187)
___
### getText
**getText**(): `string`
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getText](TextNode.md#gettext)
#### Defined in
[Node.ts:191](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L191)
___
### getType
**getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Overrides
[TextNode](TextNode.md).[getType](TextNode.md#gettype)
#### Defined in
[Node.ts:221](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L221)
___
### setContent
**setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `string` |
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[setContent](TextNode.md#setcontent)
#### Defined in
[Node.ts:183](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L183)
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---
id: "InMemoryFileSystem"
title: "Class: InMemoryFileSystem"
sidebar_label: "InMemoryFileSystem"
sidebar_position: 0
custom_edit_url: null
---
A filesystem implementation that stores files in memory.
## Implements
- [`GenericFileSystem`](../interfaces/GenericFileSystem.md)
## Constructors
### constructor
**new InMemoryFileSystem**()
## Properties
### files
`Private` **files**: `Record`<`string`, `any`\> = `{}`
#### Defined in
[storage/FileSystem.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L25)
## Methods
### access
**access**(`path`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`void`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[access](../interfaces/GenericFileSystem.md#access)
#### Defined in
[storage/FileSystem.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L38)
___
### mkdir
**mkdir**(`path`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[mkdir](../interfaces/GenericFileSystem.md#mkdir)
#### Defined in
[storage/FileSystem.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L44)
___
### readFile
**readFile**(`path`, `options?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`string`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[readFile](../interfaces/GenericFileSystem.md#readfile)
#### Defined in
[storage/FileSystem.ts:31](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L31)
___
### writeFile
**writeFile**(`path`, `content`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `content` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Implementation of
[GenericFileSystem](../interfaces/GenericFileSystem.md).[writeFile](../interfaces/GenericFileSystem.md#writefile)
#### Defined in
[storage/FileSystem.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L27)
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---
id: "IndexDict"
title: "Class: IndexDict"
sidebar_label: "IndexDict"
sidebar_position: 0
custom_edit_url: null
---
The underlying structure of each index.
## Hierarchy
- [`IndexStruct`](IndexStruct.md)
**`IndexDict`**
## Constructors
### constructor
**new IndexDict**(`indexId?`, `summary?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `indexId` | `string` | `undefined` |
| `summary` | `undefined` | `undefined` |
#### Inherited from
[IndexStruct](IndexStruct.md).[constructor](IndexStruct.md#constructor)
#### Defined in
[indices/BaseIndex.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L20)
## Properties
### docStore
**docStore**: `Record`<`string`, [`Document`](Document.md)\> = `{}`
#### Defined in
[indices/BaseIndex.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L42)
___
### indexId
**indexId**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[indexId](IndexStruct.md#indexid)
#### Defined in
[indices/BaseIndex.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L17)
___
### nodesDict
**nodesDict**: `Record`<`string`, [`BaseNode`](BaseNode.md)\> = `{}`
#### Defined in
[indices/BaseIndex.ts:41](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L41)
___
### summary
`Optional` **summary**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[summary](IndexStruct.md#summary)
#### Defined in
[indices/BaseIndex.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L18)
___
### type
**type**: `IndexStructType` = `IndexStructType.SIMPLE_DICT`
#### Defined in
[indices/BaseIndex.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L43)
## Methods
### addNode
**addNode**(`node`, `textId?`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `node` | [`BaseNode`](BaseNode.md) |
| `textId?` | `string` |
#### Returns
`void`
#### Defined in
[indices/BaseIndex.ts:52](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L52)
___
### getSummary
**getSummary**(): `string`
#### Returns
`string`
#### Overrides
[IndexStruct](IndexStruct.md).[getSummary](IndexStruct.md#getsummary)
#### Defined in
[indices/BaseIndex.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L45)
___
### toJson
**toJson**(): `Record`<`string`, `unknown`\>
#### Returns
`Record`<`string`, `unknown`\>
#### Overrides
[IndexStruct](IndexStruct.md).[toJson](IndexStruct.md#tojson)
#### Defined in
[indices/BaseIndex.ts:57](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L57)
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---
id: "IndexList"
title: "Class: IndexList"
sidebar_label: "IndexList"
sidebar_position: 0
custom_edit_url: null
---
The underlying structure of each index.
## Hierarchy
- [`IndexStruct`](IndexStruct.md)
**`IndexList`**
## Constructors
### constructor
**new IndexList**(`indexId?`, `summary?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `indexId` | `string` | `undefined` |
| `summary` | `undefined` | `undefined` |
#### Inherited from
[IndexStruct](IndexStruct.md).[constructor](IndexStruct.md#constructor)
#### Defined in
[indices/BaseIndex.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L20)
## Properties
### indexId
**indexId**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[indexId](IndexStruct.md#indexid)
#### Defined in
[indices/BaseIndex.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L17)
___
### nodes
**nodes**: `string`[] = `[]`
#### Defined in
[indices/BaseIndex.ts:67](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L67)
___
### summary
`Optional` **summary**: `string`
#### Inherited from
[IndexStruct](IndexStruct.md).[summary](IndexStruct.md#summary)
#### Defined in
[indices/BaseIndex.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L18)
___
### type
**type**: `IndexStructType` = `IndexStructType.LIST`
#### Defined in
[indices/BaseIndex.ts:68](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L68)
## Methods
### addNode
**addNode**(`node`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `node` | [`BaseNode`](BaseNode.md) |
#### Returns
`void`
#### Defined in
[indices/BaseIndex.ts:70](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L70)
___
### getSummary
**getSummary**(): `string`
#### Returns
`string`
#### Inherited from
[IndexStruct](IndexStruct.md).[getSummary](IndexStruct.md#getsummary)
#### Defined in
[indices/BaseIndex.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L32)
___
### toJson
**toJson**(): `Record`<`string`, `unknown`\>
#### Returns
`Record`<`string`, `unknown`\>
#### Overrides
[IndexStruct](IndexStruct.md).[toJson](IndexStruct.md#tojson)
#### Defined in
[indices/BaseIndex.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L74)
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---
id: "IndexNode"
title: "Class: IndexNode"
sidebar_label: "IndexNode"
sidebar_position: 0
custom_edit_url: null
---
TextNode is the default node type for text. Most common node type in LlamaIndex.TS
## Hierarchy
- [`TextNode`](TextNode.md)
**`IndexNode`**
## Constructors
### constructor
**new IndexNode**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`TextNode`](TextNode.md)\> |
#### Inherited from
[TextNode](TextNode.md).[constructor](TextNode.md#constructor)
#### Defined in
[Node.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L144)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Inherited from
[TextNode](TextNode.md).[embedding](TextNode.md#embedding)
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L39)
___
### endCharIdx
`Optional` **endCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[endCharIdx](TextNode.md#endcharidx)
#### Defined in
[Node.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L139)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedEmbedMetadataKeys](TextNode.md#excludedembedmetadatakeys)
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Inherited from
[TextNode](TextNode.md).[excludedLlmMetadataKeys](TextNode.md#excludedllmmetadatakeys)
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[hash](TextNode.md#hash)
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Inherited from
[TextNode](TextNode.md).[id_](TextNode.md#id_)
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L38)
___
### indexId
**indexId**: `string` = `""`
#### Defined in
[Node.ts:205](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L205)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[metadata](TextNode.md#metadata)
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L42)
___
### metadataSeparator
**metadataSeparator**: `string` = `"\n"`
#### Inherited from
[TextNode](TextNode.md).[metadataSeparator](TextNode.md#metadataseparator)
#### Defined in
[Node.ts:142](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L142)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Inherited from
[TextNode](TextNode.md).[relationships](TextNode.md#relationships)
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L45)
___
### startCharIdx
`Optional` **startCharIdx**: `number`
#### Inherited from
[TextNode](TextNode.md).[startCharIdx](TextNode.md#startcharidx)
#### Defined in
[Node.ts:138](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L138)
___
### text
**text**: `string` = `""`
#### Inherited from
[TextNode](TextNode.md).[text](TextNode.md#text)
#### Defined in
[Node.ts:137](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L137)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Inherited from
TextNode.childNodes
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L104)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.nextNode
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Inherited from
TextNode.nodeId
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.parentNode
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.prevNode
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
TextNode.sourceNode
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
[TextNode](TextNode.md).[asRelatedNodeInfo](TextNode.md#asrelatednodeinfo)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L124)
___
### generateHash
**generateHash**(): `void`
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[generateHash](TextNode.md#generatehash)
#### Defined in
[Node.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L149)
___
### getContent
**getContent**(`metadataMode?`): `string`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) | `MetadataMode.NONE` |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getContent](TextNode.md#getcontent)
#### Defined in
[Node.ts:157](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L157)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Inherited from
[TextNode](TextNode.md).[getEmbedding](TextNode.md#getembedding)
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L116)
___
### getMetadataStr
**getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getMetadataStr](TextNode.md#getmetadatastr)
#### Defined in
[Node.ts:162](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L162)
___
### getNodeInfo
**getNodeInfo**(): `Object`
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `end` | `undefined` \| `number` |
| `start` | `undefined` \| `number` |
#### Inherited from
[TextNode](TextNode.md).[getNodeInfo](TextNode.md#getnodeinfo)
#### Defined in
[Node.ts:187](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L187)
___
### getText
**getText**(): `string`
#### Returns
`string`
#### Inherited from
[TextNode](TextNode.md).[getText](TextNode.md#gettext)
#### Defined in
[Node.ts:191](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L191)
___
### getType
**getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Overrides
[TextNode](TextNode.md).[getType](TextNode.md#gettype)
#### Defined in
[Node.ts:207](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L207)
___
### setContent
**setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `string` |
#### Returns
`void`
#### Inherited from
[TextNode](TextNode.md).[setContent](TextNode.md#setcontent)
#### Defined in
[Node.ts:183](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L183)
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---
id: "IndexStruct"
title: "Class: IndexStruct"
sidebar_label: "IndexStruct"
sidebar_position: 0
custom_edit_url: null
---
The underlying structure of each index.
## Hierarchy
- **`IndexStruct`**
↳ [`IndexDict`](IndexDict.md)
↳ [`IndexList`](IndexList.md)
## Constructors
### constructor
**new IndexStruct**(`indexId?`, `summary?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `indexId` | `string` | `undefined` |
| `summary` | `undefined` | `undefined` |
#### Defined in
[indices/BaseIndex.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L20)
## Properties
### indexId
**indexId**: `string`
#### Defined in
[indices/BaseIndex.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L17)
___
### summary
`Optional` **summary**: `string`
#### Defined in
[indices/BaseIndex.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L18)
## Methods
### getSummary
**getSummary**(): `string`
#### Returns
`string`
#### Defined in
[indices/BaseIndex.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L32)
___
### toJson
**toJson**(): `Record`<`string`, `unknown`\>
#### Returns
`Record`<`string`, `unknown`\>
#### Defined in
[indices/BaseIndex.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L25)
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---
id: "LLMQuestionGenerator"
title: "Class: LLMQuestionGenerator"
sidebar_label: "LLMQuestionGenerator"
sidebar_position: 0
custom_edit_url: null
---
LLMQuestionGenerator uses the LLM to generate new questions for the LLM using tools and a user query.
## Implements
- [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md)
## Constructors
### constructor
**new LLMQuestionGenerator**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`LLMQuestionGenerator`](LLMQuestionGenerator.md)\> |
#### Defined in
[QuestionGenerator.ts:34](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L34)
## Properties
### llm
**llm**: [`LLM`](../interfaces/LLM.md)
#### Defined in
[QuestionGenerator.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L30)
___
### outputParser
**outputParser**: [`BaseOutputParser`](../interfaces/BaseOutputParser.md)<[`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>\>
#### Defined in
[QuestionGenerator.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L32)
___
### prompt
**prompt**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[QuestionGenerator.ts:31](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L31)
## Methods
### generate
**generate**(`tools`, `query`): `Promise`<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `tools` | [`ToolMetadata`](../interfaces/ToolMetadata.md)[] |
| `query` | `string` |
#### Returns
`Promise`<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Implementation of
[BaseQuestionGenerator](../interfaces/BaseQuestionGenerator.md).[generate](../interfaces/BaseQuestionGenerator.md#generate)
#### Defined in
[QuestionGenerator.ts:40](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L40)
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---
id: "ListIndex"
title: "Class: ListIndex"
sidebar_label: "ListIndex"
sidebar_position: 0
custom_edit_url: null
---
A ListIndex keeps nodes in a sequential list structure
## Hierarchy
- [`BaseIndex`](BaseIndex.md)<[`IndexList`](IndexList.md)\>
**`ListIndex`**
## Constructors
### constructor
**new ListIndex**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | [`BaseIndexInit`](../interfaces/BaseIndexInit.md)<[`IndexList`](IndexList.md)\> |
#### Overrides
[BaseIndex](BaseIndex.md).[constructor](BaseIndex.md#constructor)
#### Defined in
[indices/list/ListIndex.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L43)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[docStore](BaseIndex.md#docstore)
#### Defined in
[indices/BaseIndex.ts:99](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L99)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStore](BaseIndex.md#indexstore)
#### Defined in
[indices/BaseIndex.ts:101](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L101)
___
### indexStruct
**indexStruct**: [`IndexList`](IndexList.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStruct](BaseIndex.md#indexstruct)
#### Defined in
[indices/BaseIndex.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L102)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[serviceContext](BaseIndex.md#servicecontext)
#### Defined in
[indices/BaseIndex.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L97)
___
### storageContext
**storageContext**: [`StorageContext`](../interfaces/StorageContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[storageContext](BaseIndex.md#storagecontext)
#### Defined in
[indices/BaseIndex.ts:98](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L98)
___
### vectorStore
`Optional` **vectorStore**: `VectorStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[vectorStore](BaseIndex.md#vectorstore)
#### Defined in
[indices/BaseIndex.ts:100](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L100)
## Methods
### \_deleteNode
`Protected` **_deleteNode**(`nodeId`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodeId` | `string` |
#### Returns
`void`
#### Defined in
[indices/list/ListIndex.ts:193](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L193)
___
### \_insert
`Protected` **_insert**(`nodes`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] |
#### Returns
`void`
#### Defined in
[indices/list/ListIndex.ts:187](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L187)
___
### asQueryEngine
**asQueryEngine**(`options?`): [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
Create a new query engine from the index. It will also create a retriever
and response synthezier if they are not provided.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | `Object` | you can supply your own custom Retriever and ResponseSynthesizer |
| `options.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) | - |
| `options.retriever?` | [`BaseRetriever`](../interfaces/BaseRetriever.md) | - |
#### Returns
[`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asQueryEngine](BaseIndex.md#asqueryengine)
#### Defined in
[indices/list/ListIndex.ts:151](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L151)
___
### asRetriever
**asRetriever**(`options?`): [`BaseRetriever`](../interfaces/BaseRetriever.md)
Create a new retriever from the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | `Object` |
| `options.mode` | [`ListRetrieverMode`](../enums/ListRetrieverMode.md) |
#### Returns
[`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asRetriever](BaseIndex.md#asretriever)
#### Defined in
[indices/list/ListIndex.ts:138](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L138)
___
### getRefDocInfo
**getRefDocInfo**(): `Promise`<`Record`<`string`, `RefDocInfo`\>\>
#### Returns
`Promise`<`Record`<`string`, `RefDocInfo`\>\>
#### Defined in
[indices/list/ListIndex.ts:199](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L199)
___
### \_buildIndexFromNodes
`Static` **_buildIndexFromNodes**(`nodes`, `docStore`, `indexStruct?`): `Promise`<[`IndexList`](IndexList.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] |
| `docStore` | `BaseDocumentStore` |
| `indexStruct?` | [`IndexList`](IndexList.md) |
#### Returns
`Promise`<[`IndexList`](IndexList.md)\>
#### Defined in
[indices/list/ListIndex.ts:172](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L172)
___
### fromDocuments
`Static` **fromDocuments**(`documents`, `args?`): `Promise`<[`ListIndex`](ListIndex.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](Document.md)[] |
| `args` | `Object` |
| `args.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `args.storageContext?` | [`StorageContext`](../interfaces/StorageContext.md) |
#### Returns
`Promise`<[`ListIndex`](ListIndex.md)\>
#### Defined in
[indices/list/ListIndex.ts:112](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L112)
___
### init
`Static` **init**(`options`): `Promise`<[`ListIndex`](ListIndex.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `options` | `ListIndexOptions` |
#### Returns
`Promise`<[`ListIndex`](ListIndex.md)\>
#### Defined in
[indices/list/ListIndex.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L47)
@@ -0,0 +1,137 @@
---
id: "ListIndexLLMRetriever"
title: "Class: ListIndexLLMRetriever"
sidebar_label: "ListIndexLLMRetriever"
sidebar_position: 0
custom_edit_url: null
---
LLM retriever for ListIndex.
## Implements
- [`BaseRetriever`](../interfaces/BaseRetriever.md)
## Constructors
### constructor
**new ListIndexLLMRetriever**(`index`, `choiceSelectPrompt?`, `choiceBatchSize?`, `formatNodeBatchFn?`, `parseChoiceSelectAnswerFn?`, `serviceContext?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `index` | [`ListIndex`](ListIndex.md) | `undefined` |
| `choiceSelectPrompt?` | [`SimplePrompt`](../modules.md#simpleprompt) | `undefined` |
| `choiceBatchSize` | `number` | `10` |
| `formatNodeBatchFn?` | `NodeFormatterFunction` | `undefined` |
| `parseChoiceSelectAnswerFn?` | `ChoiceSelectParserFunction` | `undefined` |
| `serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) | `undefined` |
#### Defined in
[indices/list/ListIndexRetriever.ts:64](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L64)
## Properties
### choiceBatchSize
**choiceBatchSize**: `number`
#### Defined in
[indices/list/ListIndexRetriever.ts:59](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L59)
___
### choiceSelectPrompt
**choiceSelectPrompt**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[indices/list/ListIndexRetriever.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L58)
___
### formatNodeBatchFn
**formatNodeBatchFn**: `NodeFormatterFunction`
#### Defined in
[indices/list/ListIndexRetriever.ts:60](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L60)
___
### index
**index**: [`ListIndex`](ListIndex.md)
#### Defined in
[indices/list/ListIndexRetriever.ts:57](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L57)
___
### parseChoiceSelectAnswerFn
**parseChoiceSelectAnswerFn**: `ChoiceSelectParserFunction`
#### Defined in
[indices/list/ListIndexRetriever.ts:61](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L61)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[indices/list/ListIndexRetriever.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L62)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](../interfaces/ServiceContext.md)
#### Returns
[`ServiceContext`](../interfaces/ServiceContext.md)
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[getServiceContext](../interfaces/BaseRetriever.md#getservicecontext)
#### Defined in
[indices/list/ListIndexRetriever.ts:127](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L127)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[retrieve](../interfaces/BaseRetriever.md#retrieve)
#### Defined in
[indices/list/ListIndexRetriever.ts:81](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L81)
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---
id: "ListIndexRetriever"
title: "Class: ListIndexRetriever"
sidebar_label: "ListIndexRetriever"
sidebar_position: 0
custom_edit_url: null
---
Simple retriever for ListIndex that returns all nodes
## Implements
- [`BaseRetriever`](../interfaces/BaseRetriever.md)
## Constructors
### constructor
**new ListIndexRetriever**(`index`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `index` | [`ListIndex`](ListIndex.md) |
#### Defined in
[indices/list/ListIndexRetriever.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L22)
## Properties
### index
**index**: [`ListIndex`](ListIndex.md)
#### Defined in
[indices/list/ListIndexRetriever.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L20)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](../interfaces/ServiceContext.md)
#### Returns
[`ServiceContext`](../interfaces/ServiceContext.md)
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[getServiceContext](../interfaces/BaseRetriever.md#getservicecontext)
#### Defined in
[indices/list/ListIndexRetriever.ts:48](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L48)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[retrieve](../interfaces/BaseRetriever.md#retrieve)
#### Defined in
[indices/list/ListIndexRetriever.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndexRetriever.ts#L26)
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---
id: "LlamaDeuce"
title: "Class: LlamaDeuce"
sidebar_label: "LlamaDeuce"
sidebar_position: 0
custom_edit_url: null
---
Llama2 LLM implementation
## Implements
- [`LLM`](../interfaces/LLM.md)
## Constructors
### constructor
**new LlamaDeuce**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`LlamaDeuce`](LlamaDeuce.md)\> |
#### Defined in
[llm/LLM.ts:179](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L179)
## Properties
### maxTokens
`Optional` **maxTokens**: `number`
#### Defined in
[llm/LLM.ts:176](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L176)
___
### model
**model**: ``"Llama-2-70b-chat"`` \| ``"Llama-2-13b-chat"`` \| ``"Llama-2-7b-chat"``
#### Defined in
[llm/LLM.ts:174](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L174)
___
### replicateSession
• **replicateSession**: `ReplicateSession`
#### Defined in
[llm/LLM.ts:177](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L177)
___
### temperature
• **temperature**: `number`
#### Defined in
[llm/LLM.ts:175](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L175)
## Methods
### chat
▸ **chat**(`messages`, `_parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a chat response from the LLM
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `_parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[chat](../interfaces/LLM.md#chat)
#### Defined in
[llm/LLM.ts:199](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L199)
___
### complete
▸ **complete**(`prompt`, `parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a prompt completion from the LLM
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `prompt` | `string` | the prompt to complete |
| `parentEvent?` | [`Event`](../interfaces/Event.md) | - |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[complete](../interfaces/LLM.md#complete)
#### Defined in
[llm/LLM.ts:224](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L224)
___
### mapMessageType
▸ **mapMessageType**(`messageType`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `messageType` | `MessageType` |
#### Returns
`string`
#### Defined in
[llm/LLM.ts:186](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L186)
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---
id: "OpenAI"
title: "Class: OpenAI"
sidebar_label: "OpenAI"
sidebar_position: 0
custom_edit_url: null
---
OpenAI LLM implementation
## Implements
- [`LLM`](../interfaces/LLM.md)
## Constructors
### constructor
**new OpenAI**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`OpenAI`](OpenAI.md)\> |
#### Defined in
[llm/LLM.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L75)
## Properties
### callbackManager
`Optional` **callbackManager**: [`CallbackManager`](CallbackManager.md)
#### Defined in
[llm/LLM.ts:73](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L73)
___
### maxRetries
**maxRetries**: `number`
#### Defined in
[llm/LLM.ts:71](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L71)
___
### maxTokens
`Optional` **maxTokens**: `number`
#### Defined in
[llm/LLM.ts:69](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L69)
___
### model
**model**: ``"gpt-3.5-turbo"`` \| ``"gpt-3.5-turbo-16k"`` \| ``"gpt-4"`` \| ``"gpt-4-32k"``
#### Defined in
[llm/LLM.ts:66](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L66)
___
### n
• **n**: `number` = `1`
#### Defined in
[llm/LLM.ts:68](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L68)
___
### requestTimeout
• **requestTimeout**: ``null`` \| `number`
#### Defined in
[llm/LLM.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L72)
___
### session
• **session**: `OpenAISession`
#### Defined in
[llm/LLM.ts:70](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L70)
___
### temperature
• **temperature**: `number`
#### Defined in
[llm/LLM.ts:67](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L67)
## Methods
### chat
▸ **chat**(`messages`, `parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a chat response from the LLM
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](../interfaces/ChatMessage.md)[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[chat](../interfaces/LLM.md#chat)
#### Defined in
[llm/LLM.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L102)
___
### complete
▸ **complete**(`prompt`, `parentEvent?`): `Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
Get a prompt completion from the LLM
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `prompt` | `string` | the prompt to complete |
| `parentEvent?` | [`Event`](../interfaces/Event.md) | - |
#### Returns
`Promise`<[`ChatResponse`](../interfaces/ChatResponse.md)\>
#### Implementation of
[LLM](../interfaces/LLM.md).[complete](../interfaces/LLM.md#complete)
#### Defined in
[llm/LLM.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L144)
___
### mapMessageType
▸ **mapMessageType**(`messageType`): `ChatCompletionRequestMessageRoleEnum`
#### Parameters
| Name | Type |
| :------ | :------ |
| `messageType` | `MessageType` |
#### Returns
`ChatCompletionRequestMessageRoleEnum`
#### Defined in
[llm/LLM.ts:85](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L85)
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---
id: "OpenAIEmbedding"
title: "Class: OpenAIEmbedding"
sidebar_label: "OpenAIEmbedding"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- [`BaseEmbedding`](BaseEmbedding.md)
**`OpenAIEmbedding`**
## Constructors
### constructor
**new OpenAIEmbedding**()
#### Overrides
[BaseEmbedding](BaseEmbedding.md).[constructor](BaseEmbedding.md#constructor)
#### Defined in
[Embedding.ts:217](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L217)
## Properties
### model
**model**: `TEXT_EMBED_ADA_002`
#### Defined in
[Embedding.ts:215](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L215)
___
### session
**session**: `OpenAISession`
#### Defined in
[Embedding.ts:214](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L214)
## Methods
### getOpenAIEmbedding
`Private` **getOpenAIEmbedding**(`input`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Defined in
[Embedding.ts:224](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L224)
___
### getQueryEmbedding
**getQueryEmbedding**(`query`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Overrides
[BaseEmbedding](BaseEmbedding.md).[getQueryEmbedding](BaseEmbedding.md#getqueryembedding)
#### Defined in
[Embedding.ts:240](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L240)
___
### getTextEmbedding
**getTextEmbedding**(`text`): `Promise`<`number`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
#### Returns
`Promise`<`number`[]\>
#### Overrides
[BaseEmbedding](BaseEmbedding.md).[getTextEmbedding](BaseEmbedding.md#gettextembedding)
#### Defined in
[Embedding.ts:236](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L236)
___
### similarity
**similarity**(`embedding1`, `embedding2`, `mode?`): `number`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `embedding1` | `number`[] | `undefined` |
| `embedding2` | `number`[] | `undefined` |
| `mode` | [`SimilarityType`](../enums/SimilarityType.md) | `SimilarityType.DEFAULT` |
#### Returns
`number`
#### Inherited from
[BaseEmbedding](BaseEmbedding.md).[similarity](BaseEmbedding.md#similarity)
#### Defined in
[Embedding.ts:197](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L197)
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---
id: "PDFReader"
title: "Class: PDFReader"
sidebar_label: "PDFReader"
sidebar_position: 0
custom_edit_url: null
---
Read the text of a PDF
## Implements
- [`BaseReader`](../interfaces/BaseReader.md)
## Constructors
### constructor
**new PDFReader**()
## Methods
### loadData
**loadData**(`file`, `fs?`): `Promise`<[`Document`](Document.md)[]\>
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `file` | `string` | `undefined` |
| `fs` | [`GenericFileSystem`](../interfaces/GenericFileSystem.md) | `DEFAULT_FS` |
#### Returns
`Promise`<[`Document`](Document.md)[]\>
#### Implementation of
[BaseReader](../interfaces/BaseReader.md).[loadData](../interfaces/BaseReader.md#loaddata)
#### Defined in
[readers/PDFReader.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/readers/PDFReader.ts#L11)
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---
id: "Refine"
title: "Class: Refine"
sidebar_label: "Refine"
sidebar_position: 0
custom_edit_url: null
---
A response builder that uses the query to ask the LLM generate a better response using multiple text chunks.
## Hierarchy
- **`Refine`**
↳ [`CompactAndRefine`](CompactAndRefine.md)
## Implements
- `BaseResponseBuilder`
## Constructors
### constructor
**new Refine**(`serviceContext`, `textQATemplate?`, `refineTemplate?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `textQATemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
| `refineTemplate?` | [`SimplePrompt`](../modules.md#simpleprompt) |
#### Defined in
[ResponseSynthesizer.ts:78](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L78)
## Properties
### refineTemplate
**refineTemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ResponseSynthesizer.ts:76](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L76)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ResponseSynthesizer.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L74)
___
### textQATemplate
**textQATemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ResponseSynthesizer.ts:75](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L75)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`, `prevResponse?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
| `prevResponse?` | `string` |
#### Returns
`Promise`<`string`\>
#### Implementation of
BaseResponseBuilder.getResponse
#### Defined in
[ResponseSynthesizer.ts:88](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L88)
___
### giveResponseSingle
`Private` **giveResponseSingle**(`queryStr`, `textChunk`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `queryStr` | `string` |
| `textChunk` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Defined in
[ResponseSynthesizer.ts:113](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L113)
___
### refineResponseSingle
`Private` **refineResponseSingle**(`response`, `queryStr`, `textChunk`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `response` | `string` |
| `queryStr` | `string` |
| `textChunk` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Defined in
[ResponseSynthesizer.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L149)
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---
id: "Response"
title: "Class: Response"
sidebar_label: "Response"
sidebar_position: 0
custom_edit_url: null
---
Respone is the output of a LLM
## Constructors
### constructor
**new Response**(`response`, `sourceNodes?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `response` | `string` |
| `sourceNodes?` | [`BaseNode`](BaseNode.md)[] |
#### Defined in
[Response.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Response.ts#L10)
## Properties
### response
**response**: `string`
#### Defined in
[Response.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Response.ts#L7)
___
### sourceNodes
`Optional` **sourceNodes**: [`BaseNode`](BaseNode.md)[]
#### Defined in
[Response.ts:8](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Response.ts#L8)
## Methods
### getFormattedSources
**getFormattedSources**(): `void`
#### Returns
`void`
#### Defined in
[Response.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Response.ts#L15)
___
### toString
**toString**(): `string`
#### Returns
`string`
#### Defined in
[Response.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Response.ts#L19)
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---
id: "ResponseSynthesizer"
title: "Class: ResponseSynthesizer"
sidebar_label: "ResponseSynthesizer"
sidebar_position: 0
custom_edit_url: null
---
A ResponseSynthesizer is used to generate a response from a query and a list of nodes.
## Constructors
### constructor
**new ResponseSynthesizer**(`«destructured»?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | `Object` |
|  `responseBuilder?` | `BaseResponseBuilder` |
|  `serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ResponseSynthesizer.ts:285](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L285)
## Properties
### responseBuilder
**responseBuilder**: `BaseResponseBuilder`
#### Defined in
[ResponseSynthesizer.ts:282](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L282)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ResponseSynthesizer.ts:283](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L283)
## Methods
### synthesize
**synthesize**(`query`, `nodes`, `parentEvent?`): `Promise`<[`Response`](Response.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `nodes` | [`NodeWithScore`](../interfaces/NodeWithScore.md)[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Defined in
[ResponseSynthesizer.ts:297](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L297)
@@ -0,0 +1,77 @@
---
id: "RetrieverQueryEngine"
title: "Class: RetrieverQueryEngine"
sidebar_label: "RetrieverQueryEngine"
sidebar_position: 0
custom_edit_url: null
---
A query engine that uses a retriever to query an index and then synthesizes the response.
## Implements
- [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
## Constructors
### constructor
**new RetrieverQueryEngine**(`retriever`, `responseSynthesizer?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `retriever` | [`BaseRetriever`](../interfaces/BaseRetriever.md) |
| `responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) |
#### Defined in
[QueryEngine.ts:34](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L34)
## Properties
### responseSynthesizer
**responseSynthesizer**: [`ResponseSynthesizer`](ResponseSynthesizer.md)
#### Defined in
[QueryEngine.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L32)
___
### retriever
**retriever**: [`BaseRetriever`](../interfaces/BaseRetriever.md)
#### Defined in
[QueryEngine.ts:31](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L31)
## Methods
### query
**query**(`query`, `parentEvent?`): `Promise`<[`Response`](Response.md)\>
Query the query engine and get a response.
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[BaseQueryEngine](../interfaces/BaseQueryEngine.md).[query](../interfaces/BaseQueryEngine.md#query)
#### Defined in
[QueryEngine.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L45)
@@ -0,0 +1,236 @@
---
id: "SentenceSplitter"
title: "Class: SentenceSplitter"
sidebar_label: "SentenceSplitter"
sidebar_position: 0
custom_edit_url: null
---
SentenceSplitter is our default text splitter that supports splitting into sentences, paragraphs, or fixed length chunks with overlap.
## Constructors
### constructor
**new SentenceSplitter**(`chunkSize?`, `chunkOverlap?`, `tokenizer?`, `tokenizerDecoder?`, `paragraphSeparator?`, `chunkingTokenizerFn?`)
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `chunkSize` | `number` | `DEFAULT_CHUNK_SIZE` |
| `chunkOverlap` | `number` | `DEFAULT_CHUNK_OVERLAP` |
| `tokenizer` | `any` | `null` |
| `tokenizerDecoder` | `any` | `null` |
| `paragraphSeparator` | `string` | `"\n\n\n"` |
| `chunkingTokenizerFn` | `any` | `undefined` |
#### Defined in
[TextSplitter.ts:33](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L33)
## Properties
### chunkOverlap
`Private` **chunkOverlap**: `number`
#### Defined in
[TextSplitter.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L26)
___
### chunkSize
`Private` **chunkSize**: `number`
#### Defined in
[TextSplitter.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L25)
___
### chunkingTokenizerFn
`Private` **chunkingTokenizerFn**: `any`
#### Defined in
[TextSplitter.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L30)
___
### paragraphSeparator
`Private` **paragraphSeparator**: `string`
#### Defined in
[TextSplitter.ts:29](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L29)
___
### tokenizer
`Private` **tokenizer**: `any`
#### Defined in
[TextSplitter.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L27)
___
### tokenizerDecoder
`Private` **tokenizerDecoder**: `any`
#### Defined in
[TextSplitter.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L28)
## Methods
### combineTextSplits
**combineTextSplits**(`newSentenceSplits`, `effectiveChunkSize`): `TextSplit`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `newSentenceSplits` | `SplitRep`[] |
| `effectiveChunkSize` | `number` |
#### Returns
`TextSplit`[]
#### Defined in
[TextSplitter.ts:153](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L153)
___
### getEffectiveChunkSize
`Private` **getEffectiveChunkSize**(`extraInfoStr?`): `number`
#### Parameters
| Name | Type |
| :------ | :------ |
| `extraInfoStr?` | `string` |
#### Returns
`number`
#### Defined in
[TextSplitter.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L72)
___
### getParagraphSplits
**getParagraphSplits**(`text`, `effectiveChunkSize?`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `effectiveChunkSize?` | `number` |
#### Returns
`string`[]
#### Defined in
[TextSplitter.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L89)
___
### getSentenceSplits
**getSentenceSplits**(`text`, `effectiveChunkSize?`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `effectiveChunkSize?` | `number` |
#### Returns
`string`[]
#### Defined in
[TextSplitter.ts:115](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L115)
___
### processSentenceSplits
`Private` **processSentenceSplits**(`sentenceSplits`, `effectiveChunkSize`): `SplitRep`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `sentenceSplits` | `string`[] |
| `effectiveChunkSize` | `number` |
#### Returns
`SplitRep`[]
#### Defined in
[TextSplitter.ts:128](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L128)
___
### splitText
**splitText**(`text`, `extraInfoStr?`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `extraInfoStr?` | `string` |
#### Returns
`string`[]
#### Defined in
[TextSplitter.ts:233](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L233)
___
### splitTextWithOverlaps
**splitTextWithOverlaps**(`text`, `extraInfoStr?`): `TextSplit`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `text` | `string` |
| `extraInfoStr?` | `string` |
#### Returns
`TextSplit`[]
#### Defined in
[TextSplitter.ts:205](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/TextSplitter.ts#L205)
@@ -0,0 +1,96 @@
---
id: "SimpleChatEngine"
title: "Class: SimpleChatEngine"
sidebar_label: "SimpleChatEngine"
sidebar_position: 0
custom_edit_url: null
---
SimpleChatEngine is the simplest possible chat engine. Useful for using your own custom prompts.
## Implements
- [`ChatEngine`](../interfaces/ChatEngine.md)
## Constructors
### constructor
**new SimpleChatEngine**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`SimpleChatEngine`](SimpleChatEngine.md)\> |
#### Defined in
[ChatEngine.ts:40](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L40)
## Properties
### chatHistory
**chatHistory**: [`ChatMessage`](../interfaces/ChatMessage.md)[]
#### Defined in
[ChatEngine.ts:37](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L37)
___
### llm
**llm**: [`LLM`](../interfaces/LLM.md)
#### Defined in
[ChatEngine.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L38)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](../interfaces/ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[chat](../interfaces/ChatEngine.md#chat)
#### Defined in
[ChatEngine.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L45)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Implementation of
[ChatEngine](../interfaces/ChatEngine.md).[reset](../interfaces/ChatEngine.md#reset)
#### Defined in
[ChatEngine.ts:54](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L54)
@@ -0,0 +1,43 @@
---
id: "SimpleDirectoryReader"
title: "Class: SimpleDirectoryReader"
sidebar_label: "SimpleDirectoryReader"
sidebar_position: 0
custom_edit_url: null
---
Read all of the documents in a directory. Currently supports PDF and TXT files.
## Implements
- [`BaseReader`](../interfaces/BaseReader.md)
## Constructors
### constructor
**new SimpleDirectoryReader**()
## Methods
### loadData
**loadData**(`«destructured»`): `Promise`<[`Document`](Document.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | [`SimpleDirectoryReaderLoadDataProps`](../modules.md#simpledirectoryreaderloaddataprops) |
#### Returns
`Promise`<[`Document`](Document.md)[]\>
#### Implementation of
[BaseReader](../interfaces/BaseReader.md).[loadData](../interfaces/BaseReader.md#loaddata)
#### Defined in
[readers/SimpleDirectoryReader.ts:37](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/readers/SimpleDirectoryReader.ts#L37)
@@ -0,0 +1,114 @@
---
id: "SimpleNodeParser"
title: "Class: SimpleNodeParser"
sidebar_label: "SimpleNodeParser"
sidebar_position: 0
custom_edit_url: null
---
SimpleNodeParser is the default NodeParser. It splits documents into TextNodes using a splitter, by default SentenceSplitter
## Implements
- [`NodeParser`](../interfaces/NodeParser.md)
## Constructors
### constructor
**new SimpleNodeParser**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Object` |
| `init.chunkOverlap?` | `number` |
| `init.chunkSize?` | `number` |
| `init.includeMetadata?` | `boolean` |
| `init.includePrevNextRel?` | `boolean` |
| `init.textSplitter?` | [`SentenceSplitter`](SentenceSplitter.md) |
#### Defined in
[NodeParser.ts:64](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L64)
## Properties
### includeMetadata
**includeMetadata**: `boolean`
#### Defined in
[NodeParser.ts:61](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L61)
___
### includePrevNextRel
**includePrevNextRel**: `boolean`
#### Defined in
[NodeParser.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L62)
___
### textSplitter
**textSplitter**: [`SentenceSplitter`](SentenceSplitter.md)
#### Defined in
[NodeParser.ts:60](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L60)
## Methods
### getNodesFromDocuments
**getNodesFromDocuments**(`documents`): [`TextNode`](TextNode.md)[]
Generate Node objects from documents
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](Document.md)[] |
#### Returns
[`TextNode`](TextNode.md)[]
#### Implementation of
[NodeParser](../interfaces/NodeParser.md).[getNodesFromDocuments](../interfaces/NodeParser.md#getnodesfromdocuments)
#### Defined in
[NodeParser.ts:95](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L95)
___
### fromDefaults
`Static` **fromDefaults**(`init?`): [`SimpleNodeParser`](SimpleNodeParser.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Object` |
| `init.chunkOverlap?` | `number` |
| `init.chunkSize?` | `number` |
| `init.includeMetadata?` | `boolean` |
| `init.includePrevNextRel?` | `boolean` |
#### Returns
[`SimpleNodeParser`](SimpleNodeParser.md)
#### Defined in
[NodeParser.ts:82](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L82)
@@ -0,0 +1,75 @@
---
id: "SimpleResponseBuilder"
title: "Class: SimpleResponseBuilder"
sidebar_label: "SimpleResponseBuilder"
sidebar_position: 0
custom_edit_url: null
---
A response builder that just concatenates responses.
## Implements
- `BaseResponseBuilder`
## Constructors
### constructor
**new SimpleResponseBuilder**(`serviceContext`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ResponseSynthesizer.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L49)
## Properties
### llm
**llm**: [`LLM`](../interfaces/LLM.md)
#### Defined in
[ResponseSynthesizer.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L46)
___
### textQATemplate
**textQATemplate**: [`SimplePrompt`](../modules.md#simpleprompt)
#### Defined in
[ResponseSynthesizer.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L47)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Implementation of
BaseResponseBuilder.getResponse
#### Defined in
[ResponseSynthesizer.ts:54](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L54)
@@ -0,0 +1,67 @@
---
id: "SubQuestionOutputParser"
title: "Class: SubQuestionOutputParser"
sidebar_label: "SubQuestionOutputParser"
sidebar_position: 0
custom_edit_url: null
---
SubQuestionOutputParser is used to parse the output of the SubQuestionGenerator.
## Implements
- [`BaseOutputParser`](../interfaces/BaseOutputParser.md)<[`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>\>
## Constructors
### constructor
**new SubQuestionOutputParser**()
## Methods
### format
**format**(`output`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
`string`
#### Implementation of
[BaseOutputParser](../interfaces/BaseOutputParser.md).[format](../interfaces/BaseOutputParser.md#format)
#### Defined in
[OutputParser.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/OutputParser.ts#L97)
___
### parse
**parse**(`output`): [`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
[`StructuredOutput`](../interfaces/StructuredOutput.md)<[`SubQuestion`](../interfaces/SubQuestion.md)[]\>
#### Implementation of
[BaseOutputParser](../interfaces/BaseOutputParser.md).[parse](../interfaces/BaseOutputParser.md#parse)
#### Defined in
[OutputParser.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/OutputParser.ts#L89)
@@ -0,0 +1,143 @@
---
id: "SubQuestionQueryEngine"
title: "Class: SubQuestionQueryEngine"
sidebar_label: "SubQuestionQueryEngine"
sidebar_position: 0
custom_edit_url: null
---
SubQuestionQueryEngine decomposes a question into subquestions and then
## Implements
- [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
## Constructors
### constructor
**new SubQuestionQueryEngine**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.queryEngineTools` | [`QueryEngineTool`](../interfaces/QueryEngineTool.md)[] |
| `init.questionGen` | [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md) |
| `init.responseSynthesizer` | [`ResponseSynthesizer`](ResponseSynthesizer.md) |
#### Defined in
[QueryEngine.ts:65](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L65)
## Properties
### metadatas
**metadatas**: [`ToolMetadata`](../interfaces/ToolMetadata.md)[]
#### Defined in
[QueryEngine.ts:63](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L63)
___
### queryEngines
**queryEngines**: `Record`<`string`, [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)\>
#### Defined in
[QueryEngine.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L62)
___
### questionGen
**questionGen**: [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md)
#### Defined in
[QueryEngine.ts:61](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L61)
___
### responseSynthesizer
**responseSynthesizer**: [`ResponseSynthesizer`](ResponseSynthesizer.md)
#### Defined in
[QueryEngine.ts:60](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L60)
## Methods
### query
**query**(`query`): `Promise`<[`Response`](Response.md)\>
Query the query engine and get a response.
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
#### Returns
`Promise`<[`Response`](Response.md)\>
#### Implementation of
[BaseQueryEngine](../interfaces/BaseQueryEngine.md).[query](../interfaces/BaseQueryEngine.md#query)
#### Defined in
[QueryEngine.ts:106](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L106)
___
### querySubQ
`Private` **querySubQ**(`subQ`, `parentEvent?`): `Promise`<``null`` \| [`NodeWithScore`](../interfaces/NodeWithScore.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `subQ` | [`SubQuestion`](../interfaces/SubQuestion.md) |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<``null`` \| [`NodeWithScore`](../interfaces/NodeWithScore.md)\>
#### Defined in
[QueryEngine.ts:134](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L134)
___
### fromDefaults
▸ `Static` **fromDefaults**(`init`): [`SubQuestionQueryEngine`](SubQuestionQueryEngine.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | `Object` |
| `init.queryEngineTools` | [`QueryEngineTool`](../interfaces/QueryEngineTool.md)[] |
| `init.questionGen?` | [`BaseQuestionGenerator`](../interfaces/BaseQuestionGenerator.md) |
| `init.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) |
| `init.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Returns
[`SubQuestionQueryEngine`](SubQuestionQueryEngine.md)
#### Defined in
[QueryEngine.ts:82](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L82)
@@ -0,0 +1,44 @@
---
id: "TextFileReader"
title: "Class: TextFileReader"
sidebar_label: "TextFileReader"
sidebar_position: 0
custom_edit_url: null
---
Read a .txt file
## Implements
- [`BaseReader`](../interfaces/BaseReader.md)
## Constructors
### constructor
**new TextFileReader**()
## Methods
### loadData
**loadData**(`file`, `fs?`): `Promise`<[`Document`](Document.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `file` | `string` |
| `fs` | [`CompleteFileSystem`](../modules.md#completefilesystem) |
#### Returns
`Promise`<[`Document`](Document.md)[]\>
#### Implementation of
[BaseReader](../interfaces/BaseReader.md).[loadData](../interfaces/BaseReader.md#loaddata)
#### Defined in
[readers/SimpleDirectoryReader.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/readers/SimpleDirectoryReader.ts#L12)
+458
View File
@@ -0,0 +1,458 @@
---
id: "TextNode"
title: "Class: TextNode"
sidebar_label: "TextNode"
sidebar_position: 0
custom_edit_url: null
---
TextNode is the default node type for text. Most common node type in LlamaIndex.TS
## Hierarchy
- [`BaseNode`](BaseNode.md)
**`TextNode`**
↳↳ [`IndexNode`](IndexNode.md)
↳↳ [`Document`](Document.md)
## Constructors
### constructor
**new TextNode**(`init?`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init?` | `Partial`<[`TextNode`](TextNode.md)\> |
#### Overrides
[BaseNode](BaseNode.md).[constructor](BaseNode.md#constructor)
#### Defined in
[Node.ts:144](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L144)
## Properties
### embedding
`Optional` **embedding**: `number`[]
#### Inherited from
[BaseNode](BaseNode.md).[embedding](BaseNode.md#embedding)
#### Defined in
[Node.ts:39](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L39)
___
### endCharIdx
`Optional` **endCharIdx**: `number`
#### Defined in
[Node.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L139)
___
### excludedEmbedMetadataKeys
**excludedEmbedMetadataKeys**: `string`[] = `[]`
#### Inherited from
[BaseNode](BaseNode.md).[excludedEmbedMetadataKeys](BaseNode.md#excludedembedmetadatakeys)
#### Defined in
[Node.ts:43](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L43)
___
### excludedLlmMetadataKeys
**excludedLlmMetadataKeys**: `string`[] = `[]`
#### Inherited from
[BaseNode](BaseNode.md).[excludedLlmMetadataKeys](BaseNode.md#excludedllmmetadatakeys)
#### Defined in
[Node.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L44)
___
### hash
**hash**: `string` = `""`
#### Inherited from
[BaseNode](BaseNode.md).[hash](BaseNode.md#hash)
#### Defined in
[Node.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L46)
___
### id\_
**id\_**: `string`
#### Inherited from
[BaseNode](BaseNode.md).[id_](BaseNode.md#id_)
#### Defined in
[Node.ts:38](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L38)
___
### metadata
**metadata**: `Record`<`string`, `any`\> = `{}`
#### Inherited from
[BaseNode](BaseNode.md).[metadata](BaseNode.md#metadata)
#### Defined in
[Node.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L42)
___
### metadataSeparator
**metadataSeparator**: `string` = `"\n"`
#### Defined in
[Node.ts:142](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L142)
___
### relationships
**relationships**: `Partial`<`Record`<[`NodeRelationship`](../enums/NodeRelationship.md), [`RelatedNodeType`](../modules.md#relatednodetype)\>\> = `{}`
#### Inherited from
[BaseNode](BaseNode.md).[relationships](BaseNode.md#relationships)
#### Defined in
[Node.ts:45](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L45)
___
### startCharIdx
`Optional` **startCharIdx**: `number`
#### Defined in
[Node.ts:138](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L138)
___
### text
**text**: `string` = `""`
#### Defined in
[Node.ts:137](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L137)
## Accessors
### childNodes
`get` **childNodes**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)[]
#### Inherited from
BaseNode.childNodes
#### Defined in
[Node.ts:104](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L104)
___
### nextNode
`get` **nextNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.nextNode
#### Defined in
[Node.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L84)
___
### nodeId
`get` **nodeId**(): `string`
#### Returns
`string`
#### Inherited from
BaseNode.nodeId
#### Defined in
[Node.ts:58](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L58)
___
### parentNode
`get` **parentNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.parentNode
#### Defined in
[Node.ts:94](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L94)
___
### prevNode
`get` **prevNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.prevNode
#### Defined in
[Node.ts:72](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L72)
___
### sourceNode
`get` **sourceNode**(): `undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
`undefined` \| [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
BaseNode.sourceNode
#### Defined in
[Node.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L62)
## Methods
### asRelatedNodeInfo
**asRelatedNodeInfo**(): [`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Returns
[`RelatedNodeInfo`](../interfaces/RelatedNodeInfo.md)
#### Inherited from
[BaseNode](BaseNode.md).[asRelatedNodeInfo](BaseNode.md#asrelatednodeinfo)
#### Defined in
[Node.ts:124](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L124)
___
### generateHash
**generateHash**(): `void`
#### Returns
`void`
#### Defined in
[Node.ts:149](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L149)
___
### getContent
**getContent**(`metadataMode?`): `string`
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) | `MetadataMode.NONE` |
#### Returns
`string`
#### Overrides
[BaseNode](BaseNode.md).[getContent](BaseNode.md#getcontent)
#### Defined in
[Node.ts:157](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L157)
___
### getEmbedding
**getEmbedding**(): `number`[]
#### Returns
`number`[]
#### Inherited from
[BaseNode](BaseNode.md).[getEmbedding](BaseNode.md#getembedding)
#### Defined in
[Node.ts:116](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L116)
___
### getMetadataStr
**getMetadataStr**(`metadataMode`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `metadataMode` | [`MetadataMode`](../enums/MetadataMode.md) |
#### Returns
`string`
#### Overrides
[BaseNode](BaseNode.md).[getMetadataStr](BaseNode.md#getmetadatastr)
#### Defined in
[Node.ts:162](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L162)
___
### getNodeInfo
**getNodeInfo**(): `Object`
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `end` | `undefined` \| `number` |
| `start` | `undefined` \| `number` |
#### Defined in
[Node.ts:187](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L187)
___
### getText
**getText**(): `string`
#### Returns
`string`
#### Defined in
[Node.ts:191](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L191)
___
### getType
**getType**(): [`ObjectType`](../enums/ObjectType.md)
#### Returns
[`ObjectType`](../enums/ObjectType.md)
#### Overrides
[BaseNode](BaseNode.md).[getType](BaseNode.md#gettype)
#### Defined in
[Node.ts:153](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L153)
___
### setContent
**setContent**(`value`): `void`
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `string` |
#### Returns
`void`
#### Overrides
[BaseNode](BaseNode.md).[setContent](BaseNode.md#setcontent)
#### Defined in
[Node.ts:183](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L183)
@@ -0,0 +1,65 @@
---
id: "TreeSummarize"
title: "Class: TreeSummarize"
sidebar_label: "TreeSummarize"
sidebar_position: 0
custom_edit_url: null
---
TreeSummarize repacks the text chunks into the smallest possible number of chunks and then summarizes them, then recursively does so until there's one chunk left.
## Implements
- `BaseResponseBuilder`
## Constructors
### constructor
**new TreeSummarize**(`serviceContext`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
#### Defined in
[ResponseSynthesizer.ts:212](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L212)
## Properties
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[ResponseSynthesizer.ts:210](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L210)
## Methods
### getResponse
**getResponse**(`query`, `textChunks`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `textChunks` | `string`[] |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<`string`\>
#### Implementation of
BaseResponseBuilder.getResponse
#### Defined in
[ResponseSynthesizer.ts:216](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L216)
@@ -0,0 +1,104 @@
---
id: "VectorIndexRetriever"
title: "Class: VectorIndexRetriever"
sidebar_label: "VectorIndexRetriever"
sidebar_position: 0
custom_edit_url: null
---
VectorIndexRetriever retrieves nodes from a VectorIndex.
## Implements
- [`BaseRetriever`](../interfaces/BaseRetriever.md)
## Constructors
### constructor
**new VectorIndexRetriever**(`«destructured»`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | `Object` |
|  `index` | [`VectorStoreIndex`](VectorStoreIndex.md) |
|  `similarityTopK?` | `number` |
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L22)
## Properties
### index
**index**: [`VectorStoreIndex`](VectorStoreIndex.md)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L18)
___
### serviceContext
`Private` **serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L20)
___
### similarityTopK
**similarityTopK**: `number`
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L19)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](../interfaces/ServiceContext.md)
#### Returns
[`ServiceContext`](../interfaces/ServiceContext.md)
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[getServiceContext](../interfaces/BaseRetriever.md#getservicecontext)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:69](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L69)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](../interfaces/Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](../interfaces/NodeWithScore.md)[]\>
#### Implementation of
[BaseRetriever](../interfaces/BaseRetriever.md).[retrieve](../interfaces/BaseRetriever.md#retrieve)
#### Defined in
[indices/vectorStore/VectorIndexRetriever.ts:35](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorIndexRetriever.ts#L35)
@@ -0,0 +1,271 @@
---
id: "VectorStoreIndex"
title: "Class: VectorStoreIndex"
sidebar_label: "VectorStoreIndex"
sidebar_position: 0
custom_edit_url: null
---
The VectorStoreIndex, an index that stores the nodes only according to their vector embedings.
## Hierarchy
- [`BaseIndex`](BaseIndex.md)<[`IndexDict`](IndexDict.md)\>
**`VectorStoreIndex`**
## Constructors
### constructor
`Private` **new VectorStoreIndex**(`init`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `init` | [`VectorIndexConstructorProps`](../interfaces/VectorIndexConstructorProps.md) |
#### Overrides
[BaseIndex](BaseIndex.md).[constructor](BaseIndex.md#constructor)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:36](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L36)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[docStore](BaseIndex.md#docstore)
#### Defined in
[indices/BaseIndex.ts:99](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L99)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStore](BaseIndex.md#indexstore)
#### Defined in
[indices/BaseIndex.ts:101](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L101)
___
### indexStruct
**indexStruct**: [`IndexDict`](IndexDict.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[indexStruct](BaseIndex.md#indexstruct)
#### Defined in
[indices/BaseIndex.ts:102](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L102)
___
### serviceContext
**serviceContext**: [`ServiceContext`](../interfaces/ServiceContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[serviceContext](BaseIndex.md#servicecontext)
#### Defined in
[indices/BaseIndex.ts:97](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L97)
___
### storageContext
**storageContext**: [`StorageContext`](../interfaces/StorageContext.md)
#### Inherited from
[BaseIndex](BaseIndex.md).[storageContext](BaseIndex.md#storagecontext)
#### Defined in
[indices/BaseIndex.ts:98](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L98)
___
### vectorStore
**vectorStore**: `VectorStore`
#### Overrides
[BaseIndex](BaseIndex.md).[vectorStore](BaseIndex.md#vectorstore)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:34](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L34)
## Methods
### asQueryEngine
**asQueryEngine**(`options?`): [`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
Create a new query engine from the index. It will also create a retriever
and response synthezier if they are not provided.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | `Object` | you can supply your own custom Retriever and ResponseSynthesizer |
| `options.responseSynthesizer?` | [`ResponseSynthesizer`](ResponseSynthesizer.md) | - |
| `options.retriever?` | [`BaseRetriever`](../interfaces/BaseRetriever.md) | - |
#### Returns
[`BaseQueryEngine`](../interfaces/BaseQueryEngine.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asQueryEngine](BaseIndex.md#asqueryengine)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:215](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L215)
___
### asRetriever
**asRetriever**(`options?`): [`VectorIndexRetriever`](VectorIndexRetriever.md)
Create a new retriever from the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | `any` |
#### Returns
[`VectorIndexRetriever`](VectorIndexRetriever.md)
#### Overrides
[BaseIndex](BaseIndex.md).[asRetriever](BaseIndex.md#asretriever)
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:211](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L211)
___
### buildIndexFromNodes
`Static` **buildIndexFromNodes**(`nodes`, `serviceContext`, `vectorStore`, `docStore`): `Promise`<[`IndexDict`](IndexDict.md)\>
Get embeddings for nodes and place them into the index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `vectorStore` | `VectorStore` |
| `docStore` | `BaseDocumentStore` |
#### Returns
`Promise`<[`IndexDict`](IndexDict.md)\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:151](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L151)
___
### fromDocuments
`Static` **fromDocuments**(`documents`, `args?`): `Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
High level API: split documents, get embeddings, and build index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](Document.md)[] |
| `args` | `Object` |
| `args.serviceContext?` | [`ServiceContext`](../interfaces/ServiceContext.md) |
| `args.storageContext?` | [`StorageContext`](../interfaces/StorageContext.md) |
#### Returns
`Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:186](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L186)
___
### getNodeEmbeddingResults
`Static` **getNodeEmbeddingResults**(`nodes`, `serviceContext`, `logProgress?`): `Promise`<[`NodeWithEmbedding`](../interfaces/NodeWithEmbedding.md)[]\>
Get the embeddings for nodes.
#### Parameters
| Name | Type | Default value | Description |
| :------ | :------ | :------ | :------ |
| `nodes` | [`BaseNode`](BaseNode.md)[] | `undefined` | |
| `serviceContext` | [`ServiceContext`](../interfaces/ServiceContext.md) | `undefined` | |
| `logProgress` | `boolean` | `false` | log progress to console (useful for debugging) |
#### Returns
`Promise`<[`NodeWithEmbedding`](../interfaces/NodeWithEmbedding.md)[]\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:123](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L123)
___
### init
`Static` **init**(`options`): `Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
The async init function should be called after the constructor.
This is needed to handle persistence.
#### Parameters
| Name | Type |
| :------ | :------ |
| `options` | [`VectorIndexOptions`](../interfaces/VectorIndexOptions.md) |
#### Returns
`Promise`<[`VectorStoreIndex`](VectorStoreIndex.md)\>
#### Defined in
[indices/vectorStore/VectorStoreIndex.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/vectorStore/VectorStoreIndex.ts#L47)
@@ -0,0 +1,2 @@
label: "Classes"
position: 3
@@ -0,0 +1,27 @@
---
id: "ListRetrieverMode"
title: "Enumeration: ListRetrieverMode"
sidebar_label: "ListRetrieverMode"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### DEFAULT
**DEFAULT** = ``"default"``
#### Defined in
[indices/list/ListIndex.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L26)
___
### LLM
• **LLM** = ``"llm"``
#### Defined in
[indices/list/ListIndex.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/list/ListIndex.ts#L28)
+47
View File
@@ -0,0 +1,47 @@
---
id: "MetadataMode"
title: "Enumeration: MetadataMode"
sidebar_label: "MetadataMode"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### ALL
**ALL** = ``"ALL"``
#### Defined in
[Node.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L19)
___
### EMBED
• **EMBED** = ``"EMBED"``
#### Defined in
[Node.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L20)
___
### LLM
• **LLM** = ``"LLM"``
#### Defined in
[Node.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L21)
___
### NONE
• **NONE** = ``"NONE"``
#### Defined in
[Node.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L22)
@@ -0,0 +1,57 @@
---
id: "NodeRelationship"
title: "Enumeration: NodeRelationship"
sidebar_label: "NodeRelationship"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### CHILD
**CHILD** = ``"CHILD"``
#### Defined in
[Node.ts:8](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L8)
___
### NEXT
• **NEXT** = ``"NEXT"``
#### Defined in
[Node.ts:6](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L6)
___
### PARENT
• **PARENT** = ``"PARENT"``
#### Defined in
[Node.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L7)
___
### PREVIOUS
• **PREVIOUS** = ``"PREVIOUS"``
#### Defined in
[Node.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L5)
___
### SOURCE
• **SOURCE** = ``"SOURCE"``
#### Defined in
[Node.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L4)
+47
View File
@@ -0,0 +1,47 @@
---
id: "ObjectType"
title: "Enumeration: ObjectType"
sidebar_label: "ObjectType"
sidebar_position: 0
custom_edit_url: null
---
## Enumeration Members
### DOCUMENT
**DOCUMENT** = ``"DOCUMENT"``
#### Defined in
[Node.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L15)
___
### IMAGE
• **IMAGE** = ``"IMAGE"``
#### Defined in
[Node.ts:13](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L13)
___
### INDEX
• **INDEX** = ``"INDEX"``
#### Defined in
[Node.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L14)
___
### TEXT
• **TEXT** = ``"TEXT"``
#### Defined in
[Node.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L12)
@@ -0,0 +1,40 @@
---
id: "SimilarityType"
title: "Enumeration: SimilarityType"
sidebar_label: "SimilarityType"
sidebar_position: 0
custom_edit_url: null
---
Similarity type
Default is cosine similarity. Dot product and negative Euclidean distance are also supported.
## Enumeration Members
### DEFAULT
**DEFAULT** = ``"cosine"``
#### Defined in
[Embedding.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L10)
___
### DOT\_PRODUCT
• **DOT\_PRODUCT** = ``"dot_product"``
#### Defined in
[Embedding.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L11)
___
### EUCLIDEAN
• **EUCLIDEAN** = ``"euclidean"``
#### Defined in
[Embedding.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L12)
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label: "Enumerations"
position: 2
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@@ -0,0 +1,90 @@
---
id: "index"
title: "llamaindex"
sidebar_label: "Readme"
sidebar_position: 0
custom_edit_url: null
---
# LlamaIndex.TS
Use your own data with large language models (LLMs, OpenAI ChatGPT and others) in Typescript and Javascript.
## What is LlamaIndex.TS?
LlamaIndex.TS aims to be a lightweight, easy to use set of libraries to help you integrate large language models into your applications with your own data.
## Getting started with an example:
LlamaIndex.TS requries Node v18 or higher. You can download it from https://nodejs.org or use https://nvm.sh (our preferred option).
In a new folder:
```bash
export OPEN_AI_KEY="sk-......" # Replace with your key from https://platform.openai.com/account/api-keys
npx tsc -init # if needed
pnpm install llamaindex
```
Create the file example.ts
```ts
// example.ts
import fs from "fs/promises";
import { Document, VectorStoreIndex } from "llamaindex";
async function main() {
// Load essay from abramov.txt in Node
const essay = await fs.readFile(
"node_modules/llamaindex/examples/abramov.txt",
"utf-8"
);
// Create Document object with essay
const document = new Document({ text: essay });
// Split text and create embeddings. Store them in a VectorStoreIndex
const index = await VectorStoreIndex.fromDocuments([document]);
// Query the index
const queryEngine = index.asQueryEngine();
const response = await queryEngine.query(
"What did the author do in college?"
);
// Output response
console.log(response.toString());
}
main();
```
Then you can run it using
```bash
npx ts-node example.ts
```
## Core concepts for getting started:
- [Document](packages/core/src/Node.ts): A document represents a text file, PDF file or other contiguous piece of data.
- [Node](packages/core/src/Node.ts): The basic data building block. Most commonly, these are parts of the document split into manageable pieces that are small enough to be fed into an embedding model and LLM.
- [Embedding](packages/core/src/Embedding.ts): Embeddings are sets of floating point numbers which represent the data in a Node. By comparing the similarity of embeddings, we can derive an understanding of the similarity of two pieces of data. One use case is to compare the embedding of a question with the embeddings of our Nodes to see which Nodes may contain the data needed to answer that quesiton.
- [Indices](packages/core/src/indices/): Indices store the Nodes and the embeddings of those nodes. QueryEngines retrieve Nodes from these Indices using embedding similarity.
- [QueryEngine](packages/core/src/QueryEngine.ts): Query engines are what generate the query you put in and give you back the result. Query engines generally combine a pre-built prompt with selected Nodes from your Index to give the LLM the context it needs to answer your query.
- [ChatEngine](packages/core/src/ChatEngine.ts): A ChatEngine helps you build a chatbot that will interact with your Indices.
- [SimplePrompt](packages/core/src/Prompt.ts): A simple standardized function call definition that takes in inputs and formats them in a template literal. SimplePrompts can be specialized using currying and combined using other SimplePrompt functions.
## Contributing:
We are in the very early days of LlamaIndex.TS. If youre interested in hacking on it with us check out our [contributing guide](CONTRIBUTING.md)
## Bugs? Questions?
Please join our Discord! https://discord.com/invite/eN6D2HQ4aX
@@ -0,0 +1,79 @@
---
id: "BaseIndexInit"
title: "Interface: BaseIndexInit<T>"
sidebar_label: "BaseIndexInit"
sidebar_position: 0
custom_edit_url: null
---
## Type parameters
| Name |
| :------ |
| `T` |
## Hierarchy
- **`BaseIndexInit`**
↳ [`VectorIndexConstructorProps`](VectorIndexConstructorProps.md)
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Defined in
[indices/BaseIndex.ts:86](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L86)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Defined in
[indices/BaseIndex.ts:88](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L88)
___
### indexStruct
**indexStruct**: `T`
#### Defined in
[indices/BaseIndex.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L89)
___
### serviceContext
**serviceContext**: [`ServiceContext`](ServiceContext.md)
#### Defined in
[indices/BaseIndex.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L84)
___
### storageContext
**storageContext**: [`StorageContext`](StorageContext.md)
#### Defined in
[indices/BaseIndex.ts:85](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L85)
___
### vectorStore
`Optional` **vectorStore**: `VectorStore`
#### Defined in
[indices/BaseIndex.ts:87](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L87)
@@ -0,0 +1,49 @@
---
id: "BaseLLMPredictor"
title: "Interface: BaseLLMPredictor"
sidebar_label: "BaseLLMPredictor"
sidebar_position: 0
custom_edit_url: null
---
LLM Predictors are an abstraction to predict the response to a prompt.
## Implemented by
- [`ChatGPTLLMPredictor`](../classes/ChatGPTLLMPredictor.md)
## Methods
### getLlmMetadata
**getLlmMetadata**(): `Promise`<`any`\>
#### Returns
`Promise`<`any`\>
#### Defined in
[LLMPredictor.ts:9](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L9)
___
### predict
**predict**(`prompt`, `input?`, `parentEvent?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `prompt` | `string` \| [`SimplePrompt`](../modules.md#simpleprompt) |
| `input?` | `Record`<`string`, `string`\> |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<`string`\>
#### Defined in
[LLMPredictor.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/9d0cadf/packages/core/src/LLMPredictor.ts#L10)
@@ -0,0 +1,59 @@
---
id: "BaseOutputParser"
title: "Interface: BaseOutputParser<T>"
sidebar_label: "BaseOutputParser"
sidebar_position: 0
custom_edit_url: null
---
An OutputParser is used to extract structured data from the raw output of the LLM.
## Type parameters
| Name |
| :------ |
| `T` |
## Implemented by
- [`SubQuestionOutputParser`](../classes/SubQuestionOutputParser.md)
## Methods
### format
**format**(`output`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
`string`
#### Defined in
[OutputParser.ts:8](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/OutputParser.ts#L8)
___
### parse
**parse**(`output`): `T`
#### Parameters
| Name | Type |
| :------ | :------ |
| `output` | `string` |
#### Returns
`T`
#### Defined in
[OutputParser.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/OutputParser.ts#L7)
@@ -0,0 +1,37 @@
---
id: "BaseQueryEngine"
title: "Interface: BaseQueryEngine"
sidebar_label: "BaseQueryEngine"
sidebar_position: 0
custom_edit_url: null
---
A query engine is a question answerer that can use one or more steps.
## Implemented by
- [`RetrieverQueryEngine`](../classes/RetrieverQueryEngine.md)
- [`SubQuestionQueryEngine`](../classes/SubQuestionQueryEngine.md)
## Methods
### query
**query**(`query`, `parentEvent?`): `Promise`<[`Response`](../classes/Response.md)\>
Query the query engine and get a response.
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<[`Response`](../classes/Response.md)\>
#### Defined in
[QueryEngine.ts:24](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QueryEngine.ts#L24)
@@ -0,0 +1,34 @@
---
id: "BaseQuestionGenerator"
title: "Interface: BaseQuestionGenerator"
sidebar_label: "BaseQuestionGenerator"
sidebar_position: 0
custom_edit_url: null
---
QuestionGenerators generate new questions for the LLM using tools and a user query.
## Implemented by
- [`LLMQuestionGenerator`](../classes/LLMQuestionGenerator.md)
## Methods
### generate
**generate**(`tools`, `query`): `Promise`<[`SubQuestion`](SubQuestion.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `tools` | [`ToolMetadata`](ToolMetadata.md)[] |
| `query` | `string` |
#### Returns
`Promise`<[`SubQuestion`](SubQuestion.md)[]\>
#### Defined in
[QuestionGenerator.ts:23](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L23)
@@ -0,0 +1,35 @@
---
id: "BaseReader"
title: "Interface: BaseReader"
sidebar_label: "BaseReader"
sidebar_position: 0
custom_edit_url: null
---
A reader takes imports data into Document objects.
## Implemented by
- [`PDFReader`](../classes/PDFReader.md)
- [`SimpleDirectoryReader`](../classes/SimpleDirectoryReader.md)
- [`TextFileReader`](../classes/TextFileReader.md)
## Methods
### loadData
**loadData**(`...args`): `Promise`<[`Document`](../classes/Document.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `...args` | `any`[] |
#### Returns
`Promise`<[`Document`](../classes/Document.md)[]\>
#### Defined in
[readers/base.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/readers/base.ts#L7)
@@ -0,0 +1,50 @@
---
id: "BaseRetriever"
title: "Interface: BaseRetriever"
sidebar_label: "BaseRetriever"
sidebar_position: 0
custom_edit_url: null
---
Retrievers retrieve the nodes that most closely match our query in similarity.
## Implemented by
- [`ListIndexLLMRetriever`](../classes/ListIndexLLMRetriever.md)
- [`ListIndexRetriever`](../classes/ListIndexRetriever.md)
- [`VectorIndexRetriever`](../classes/VectorIndexRetriever.md)
## Methods
### getServiceContext
**getServiceContext**(): [`ServiceContext`](ServiceContext.md)
#### Returns
[`ServiceContext`](ServiceContext.md)
#### Defined in
[Retriever.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Retriever.ts#L10)
___
### retrieve
**retrieve**(`query`, `parentEvent?`): `Promise`<[`NodeWithScore`](NodeWithScore.md)[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `query` | `string` |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<[`NodeWithScore`](NodeWithScore.md)[]\>
#### Defined in
[Retriever.ts:9](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Retriever.ts#L9)
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---
id: "BaseTool"
title: "Interface: BaseTool"
sidebar_label: "BaseTool"
sidebar_position: 0
custom_edit_url: null
---
Simple Tool interface. Likely to change.
## Hierarchy
- **`BaseTool`**
↳ [`QueryEngineTool`](QueryEngineTool.md)
## Properties
### metadata
**metadata**: [`ToolMetadata`](ToolMetadata.md)
#### Defined in
[Tool.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Tool.ts#L12)
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---
id: "ChatEngine"
title: "Interface: ChatEngine"
sidebar_label: "ChatEngine"
sidebar_position: 0
custom_edit_url: null
---
A ChatEngine is used to handle back and forth chats between the application and the LLM.
## Implemented by
- [`CondenseQuestionChatEngine`](../classes/CondenseQuestionChatEngine.md)
- [`ContextChatEngine`](../classes/ContextChatEngine.md)
- [`SimpleChatEngine`](../classes/SimpleChatEngine.md)
## Methods
### chat
**chat**(`message`, `chatHistory?`): `Promise`<[`Response`](../classes/Response.md)\>
Send message along with the class's current chat history to the LLM.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `message` | `string` | |
| `chatHistory?` | [`ChatMessage`](ChatMessage.md)[] | optional chat history if you want to customize the chat history |
#### Returns
`Promise`<[`Response`](../classes/Response.md)\>
#### Defined in
[ChatEngine.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L25)
___
### reset
**reset**(): `void`
Resets the chat history so that it's empty.
#### Returns
`void`
#### Defined in
[ChatEngine.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ChatEngine.ts#L30)
@@ -0,0 +1,27 @@
---
id: "ChatMessage"
title: "Interface: ChatMessage"
sidebar_label: "ChatMessage"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### content
**content**: `string`
#### Defined in
[llm/LLM.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L14)
___
### role
**role**: `MessageType`
#### Defined in
[llm/LLM.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L15)
@@ -0,0 +1,37 @@
---
id: "ChatResponse"
title: "Interface: ChatResponse"
sidebar_label: "ChatResponse"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### delta
`Optional` **delta**: `string`
#### Defined in
[llm/LLM.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L21)
___
### message
**message**: [`ChatMessage`](ChatMessage.md)
#### Defined in
[llm/LLM.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L19)
___
### raw
`Optional` **raw**: `Record`<`string`, `any`\>
#### Defined in
[llm/LLM.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L20)
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---
id: "Event"
title: "Interface: Event"
sidebar_label: "Event"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### id
**id**: `string`
#### Defined in
[callbacks/CallbackManager.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L14)
___
### parentId
`Optional` **parentId**: `string`
#### Defined in
[callbacks/CallbackManager.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L17)
___
### tags
`Optional` **tags**: [`EventTag`](../modules.md#eventtag)[]
#### Defined in
[callbacks/CallbackManager.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L16)
___
### type
**type**: [`EventType`](../modules.md#eventtype)
#### Defined in
[callbacks/CallbackManager.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L15)
@@ -0,0 +1,100 @@
---
id: "GenericFileSystem"
title: "Interface: GenericFileSystem"
sidebar_label: "GenericFileSystem"
sidebar_position: 0
custom_edit_url: null
---
A filesystem interface that is meant to be compatible with
the 'fs' module from Node.js.
Allows for the use of similar inteface implementation on
browsers.
## Implemented by
- [`InMemoryFileSystem`](../classes/InMemoryFileSystem.md)
## Methods
### access
**access**(`path`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`void`\>
#### Defined in
[storage/FileSystem.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L12)
___
### mkdir
**mkdir**(`path`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Defined in
[storage/FileSystem.ts:13](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L13)
___
### readFile
**readFile**(`path`, `options?`): `Promise`<`string`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`string`\>
#### Defined in
[storage/FileSystem.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L11)
___
### writeFile
**writeFile**(`path`, `content`, `options?`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
| `content` | `string` |
| `options?` | `any` |
#### Returns
`Promise`<`void`\>
#### Defined in
[storage/FileSystem.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L10)
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---
id: "LLM"
title: "Interface: LLM"
sidebar_label: "LLM"
sidebar_position: 0
custom_edit_url: null
---
Unified language model interface
## Implemented by
- [`LlamaDeuce`](../classes/LlamaDeuce.md)
- [`OpenAI`](../classes/OpenAI.md)
## Methods
### chat
**chat**(`messages`, `parentEvent?`): `Promise`<[`ChatResponse`](ChatResponse.md)\>
Get a chat response from the LLM
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](ChatMessage.md)[] |
| `parentEvent?` | [`Event`](Event.md) |
#### Returns
`Promise`<[`ChatResponse`](ChatResponse.md)\>
#### Defined in
[llm/LLM.ts:35](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L35)
___
### complete
**complete**(`prompt`, `parentEvent?`): `Promise`<[`ChatResponse`](ChatResponse.md)\>
Get a prompt completion from the LLM
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `prompt` | `string` | the prompt to complete |
| `parentEvent?` | [`Event`](Event.md) | - |
#### Returns
`Promise`<[`ChatResponse`](ChatResponse.md)\>
#### Defined in
[llm/LLM.ts:41](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L41)
@@ -0,0 +1,33 @@
---
id: "NodeParser"
title: "Interface: NodeParser"
sidebar_label: "NodeParser"
sidebar_position: 0
custom_edit_url: null
---
A node parser generates TextNodes from Documents
## Implemented by
- [`SimpleNodeParser`](../classes/SimpleNodeParser.md)
## Methods
### getNodesFromDocuments
**getNodesFromDocuments**(`documents`): [`TextNode`](../classes/TextNode.md)[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `documents` | [`Document`](../classes/Document.md)[] |
#### Returns
[`TextNode`](../classes/TextNode.md)[]
#### Defined in
[NodeParser.ts:53](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L53)
@@ -0,0 +1,29 @@
---
id: "NodeWithEmbedding"
title: "Interface: NodeWithEmbedding"
sidebar_label: "NodeWithEmbedding"
sidebar_position: 0
custom_edit_url: null
---
A node with an embedding
## Properties
### embedding
**embedding**: `number`[]
#### Defined in
[Node.ts:247](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L247)
___
### node
**node**: [`BaseNode`](../classes/BaseNode.md)
#### Defined in
[Node.ts:246](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L246)
@@ -0,0 +1,29 @@
---
id: "NodeWithScore"
title: "Interface: NodeWithScore"
sidebar_label: "NodeWithScore"
sidebar_position: 0
custom_edit_url: null
---
A node with a similarity score
## Properties
### node
**node**: [`BaseNode`](../classes/BaseNode.md)
#### Defined in
[Node.ts:238](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L238)
___
### score
**score**: `number`
#### Defined in
[Node.ts:239](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L239)
@@ -0,0 +1,39 @@
---
id: "QueryEngineTool"
title: "Interface: QueryEngineTool"
sidebar_label: "QueryEngineTool"
sidebar_position: 0
custom_edit_url: null
---
A Tool that uses a QueryEngine.
## Hierarchy
- [`BaseTool`](BaseTool.md)
**`QueryEngineTool`**
## Properties
### metadata
**metadata**: [`ToolMetadata`](ToolMetadata.md)
#### Inherited from
[BaseTool](BaseTool.md).[metadata](BaseTool.md#metadata)
#### Defined in
[Tool.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Tool.ts#L12)
___
### queryEngine
**queryEngine**: [`BaseQueryEngine`](BaseQueryEngine.md)
#### Defined in
[Tool.ts:19](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Tool.ts#L19)
@@ -0,0 +1,47 @@
---
id: "RelatedNodeInfo"
title: "Interface: RelatedNodeInfo"
sidebar_label: "RelatedNodeInfo"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### hash
`Optional` **hash**: `string`
#### Defined in
[Node.ts:29](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L29)
___
### metadata
**metadata**: `Record`<`string`, `any`\>
#### Defined in
[Node.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L28)
___
### nodeId
**nodeId**: `string`
#### Defined in
[Node.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L26)
___
### nodeType
`Optional` **nodeType**: [`ObjectType`](../enums/ObjectType.md)
#### Defined in
[Node.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L27)
@@ -0,0 +1,47 @@
---
id: "RetrievalCallbackResponse"
title: "Interface: RetrievalCallbackResponse"
sidebar_label: "RetrievalCallbackResponse"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- `BaseCallbackResponse`
**`RetrievalCallbackResponse`**
## Properties
### event
**event**: [`Event`](Event.md)
#### Inherited from
BaseCallbackResponse.event
#### Defined in
[callbacks/CallbackManager.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L21)
___
### nodes
**nodes**: [`NodeWithScore`](NodeWithScore.md)[]
#### Defined in
[callbacks/CallbackManager.ts:47](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L47)
___
### query
**query**: `string`
#### Defined in
[callbacks/CallbackManager.ts:46](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L46)
@@ -0,0 +1,59 @@
---
id: "ServiceContext"
title: "Interface: ServiceContext"
sidebar_label: "ServiceContext"
sidebar_position: 0
custom_edit_url: null
---
The ServiceContext is a collection of components that are used in different parts of the application.
## Properties
### callbackManager
**callbackManager**: [`CallbackManager`](../classes/CallbackManager.md)
#### Defined in
[ServiceContext.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L15)
___
### embedModel
**embedModel**: [`BaseEmbedding`](../classes/BaseEmbedding.md)
#### Defined in
[ServiceContext.ts:13](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L13)
___
### llm
**llm**: [`LLM`](LLM.md)
#### Defined in
[ServiceContext.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L11)
___
### nodeParser
**nodeParser**: [`NodeParser`](NodeParser.md)
#### Defined in
[ServiceContext.ts:14](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L14)
___
### promptHelper
**promptHelper**: `PromptHelper`
#### Defined in
[ServiceContext.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L12)
@@ -0,0 +1,77 @@
---
id: "ServiceContextOptions"
title: "Interface: ServiceContextOptions"
sidebar_label: "ServiceContextOptions"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### callbackManager
`Optional` **callbackManager**: [`CallbackManager`](../classes/CallbackManager.md)
#### Defined in
[ServiceContext.ts:24](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L24)
___
### chunkOverlap
`Optional` **chunkOverlap**: `number`
#### Defined in
[ServiceContext.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L27)
___
### chunkSize
`Optional` **chunkSize**: `number`
#### Defined in
[ServiceContext.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L26)
___
### embedModel
`Optional` **embedModel**: [`BaseEmbedding`](../classes/BaseEmbedding.md)
#### Defined in
[ServiceContext.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L22)
___
### llm
`Optional` **llm**: [`OpenAI`](../classes/OpenAI.md)
#### Defined in
[ServiceContext.ts:20](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L20)
___
### nodeParser
`Optional` **nodeParser**: [`NodeParser`](NodeParser.md)
#### Defined in
[ServiceContext.ts:23](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L23)
___
### promptHelper
`Optional` **promptHelper**: `PromptHelper`
#### Defined in
[ServiceContext.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L21)
@@ -0,0 +1,37 @@
---
id: "StorageContext"
title: "Interface: StorageContext"
sidebar_label: "StorageContext"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Defined in
[storage/StorageContext.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/StorageContext.ts#L15)
___
### indexStore
**indexStore**: `BaseIndexStore`
#### Defined in
[storage/StorageContext.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/StorageContext.ts#L16)
___
### vectorStore
**vectorStore**: `VectorStore`
#### Defined in
[storage/StorageContext.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/StorageContext.ts#L17)
@@ -0,0 +1,57 @@
---
id: "StreamCallbackResponse"
title: "Interface: StreamCallbackResponse"
sidebar_label: "StreamCallbackResponse"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- `BaseCallbackResponse`
**`StreamCallbackResponse`**
## Properties
### event
**event**: [`Event`](Event.md)
#### Inherited from
BaseCallbackResponse.event
#### Defined in
[callbacks/CallbackManager.ts:21](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L21)
___
### index
**index**: `number`
#### Defined in
[callbacks/CallbackManager.ts:40](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L40)
___
### isDone
`Optional` **isDone**: `boolean`
#### Defined in
[callbacks/CallbackManager.ts:41](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L41)
___
### token
`Optional` **token**: [`StreamToken`](StreamToken.md)
#### Defined in
[callbacks/CallbackManager.ts:42](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L42)
@@ -0,0 +1,57 @@
---
id: "StreamToken"
title: "Interface: StreamToken"
sidebar_label: "StreamToken"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### choices
**choices**: { `delta`: { `content?`: `string` ; `role?`: `ChatCompletionResponseMessageRoleEnum` } ; `finish_reason`: ``null`` \| `string` ; `index`: `number` }[]
#### Defined in
[callbacks/CallbackManager.ts:29](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L29)
___
### created
• **created**: `number`
#### Defined in
[callbacks/CallbackManager.ts:27](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L27)
___
### id
• **id**: `string`
#### Defined in
[callbacks/CallbackManager.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L25)
___
### model
• **model**: `string`
#### Defined in
[callbacks/CallbackManager.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L28)
___
### object
• **object**: `string`
#### Defined in
[callbacks/CallbackManager.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L26)
@@ -0,0 +1,35 @@
---
id: "StructuredOutput"
title: "Interface: StructuredOutput<T>"
sidebar_label: "StructuredOutput"
sidebar_position: 0
custom_edit_url: null
---
StructuredOutput is just a combo of the raw output and the parsed output.
## Type parameters
| Name |
| :------ |
| `T` |
## Properties
### parsedOutput
**parsedOutput**: `T`
#### Defined in
[OutputParser.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/OutputParser.ts#L16)
___
### rawOutput
**rawOutput**: `string`
#### Defined in
[OutputParser.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/OutputParser.ts#L15)
@@ -0,0 +1,27 @@
---
id: "SubQuestion"
title: "Interface: SubQuestion"
sidebar_label: "SubQuestion"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### subQuestion
**subQuestion**: `string`
#### Defined in
[QuestionGenerator.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L15)
___
### toolName
**toolName**: `string`
#### Defined in
[QuestionGenerator.ts:16](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/QuestionGenerator.ts#L16)
@@ -0,0 +1,27 @@
---
id: "ToolMetadata"
title: "Interface: ToolMetadata"
sidebar_label: "ToolMetadata"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### description
**description**: `string`
#### Defined in
[Tool.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Tool.ts#L4)
___
### name
**name**: `string`
#### Defined in
[Tool.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Tool.ts#L5)
@@ -0,0 +1,97 @@
---
id: "VectorIndexConstructorProps"
title: "Interface: VectorIndexConstructorProps"
sidebar_label: "VectorIndexConstructorProps"
sidebar_position: 0
custom_edit_url: null
---
## Hierarchy
- [`BaseIndexInit`](BaseIndexInit.md)<[`IndexDict`](../classes/IndexDict.md)\>
**`VectorIndexConstructorProps`**
## Properties
### docStore
**docStore**: `BaseDocumentStore`
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[docStore](BaseIndexInit.md#docstore)
#### Defined in
[indices/BaseIndex.ts:86](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L86)
___
### indexStore
`Optional` **indexStore**: `BaseIndexStore`
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[indexStore](BaseIndexInit.md#indexstore)
#### Defined in
[indices/BaseIndex.ts:88](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L88)
___
### indexStruct
**indexStruct**: [`IndexDict`](../classes/IndexDict.md)
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[indexStruct](BaseIndexInit.md#indexstruct)
#### Defined in
[indices/BaseIndex.ts:89](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L89)
___
### serviceContext
**serviceContext**: [`ServiceContext`](ServiceContext.md)
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[serviceContext](BaseIndexInit.md#servicecontext)
#### Defined in
[indices/BaseIndex.ts:84](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L84)
___
### storageContext
**storageContext**: [`StorageContext`](StorageContext.md)
#### Inherited from
[BaseIndexInit](BaseIndexInit.md).[storageContext](BaseIndexInit.md#storagecontext)
#### Defined in
[indices/BaseIndex.ts:85](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L85)
___
### vectorStore
**vectorStore**: `VectorStore`
#### Overrides
[BaseIndexInit](BaseIndexInit.md).[vectorStore](BaseIndexInit.md#vectorstore)
#### Defined in
[indices/BaseIndex.ts:139](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L139)
@@ -0,0 +1,57 @@
---
id: "VectorIndexOptions"
title: "Interface: VectorIndexOptions"
sidebar_label: "VectorIndexOptions"
sidebar_position: 0
custom_edit_url: null
---
## Properties
### indexId
`Optional` **indexId**: `string`
#### Defined in
[indices/BaseIndex.ts:133](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L133)
___
### indexStruct
`Optional` **indexStruct**: [`IndexDict`](../classes/IndexDict.md)
#### Defined in
[indices/BaseIndex.ts:132](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L132)
___
### nodes
`Optional` **nodes**: [`BaseNode`](../classes/BaseNode.md)[]
#### Defined in
[indices/BaseIndex.ts:131](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L131)
___
### serviceContext
`Optional` **serviceContext**: [`ServiceContext`](ServiceContext.md)
#### Defined in
[indices/BaseIndex.ts:134](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L134)
___
### storageContext
`Optional` **storageContext**: [`StorageContext`](StorageContext.md)
#### Defined in
[indices/BaseIndex.ts:135](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/indices/BaseIndex.ts#L135)
@@ -0,0 +1,47 @@
---
id: "WalkableFileSystem"
title: "Interface: WalkableFileSystem"
sidebar_label: "WalkableFileSystem"
sidebar_position: 0
custom_edit_url: null
---
## Methods
### readdir
**readdir**(`path`): `Promise`<`string`[]\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`string`[]\>
#### Defined in
[storage/FileSystem.ts:17](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L17)
___
### stat
**stat**(`path`): `Promise`<`any`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `path` | `string` |
#### Returns
`Promise`<`any`\>
#### Defined in
[storage/FileSystem.ts:18](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L18)
@@ -0,0 +1,2 @@
label: "Interfaces"
position: 4
+949
View File
@@ -0,0 +1,949 @@
---
id: "modules"
title: "llamaindex"
sidebar_label: "Exports"
sidebar_position: 0.5
custom_edit_url: null
---
## Enumerations
- [ListRetrieverMode](enums/ListRetrieverMode.md)
- [MetadataMode](enums/MetadataMode.md)
- [NodeRelationship](enums/NodeRelationship.md)
- [ObjectType](enums/ObjectType.md)
- [SimilarityType](enums/SimilarityType.md)
## Classes
- [BaseEmbedding](classes/BaseEmbedding.md)
- [BaseIndex](classes/BaseIndex.md)
- [BaseNode](classes/BaseNode.md)
- [CallbackManager](classes/CallbackManager.md)
- [CompactAndRefine](classes/CompactAndRefine.md)
- [CondenseQuestionChatEngine](classes/CondenseQuestionChatEngine.md)
- [ContextChatEngine](classes/ContextChatEngine.md)
- [Document](classes/Document.md)
- [InMemoryFileSystem](classes/InMemoryFileSystem.md)
- [IndexDict](classes/IndexDict.md)
- [IndexList](classes/IndexList.md)
- [IndexNode](classes/IndexNode.md)
- [IndexStruct](classes/IndexStruct.md)
- [LLMQuestionGenerator](classes/LLMQuestionGenerator.md)
- [ListIndex](classes/ListIndex.md)
- [ListIndexLLMRetriever](classes/ListIndexLLMRetriever.md)
- [ListIndexRetriever](classes/ListIndexRetriever.md)
- [LlamaDeuce](classes/LlamaDeuce.md)
- [OpenAI](classes/OpenAI.md)
- [OpenAIEmbedding](classes/OpenAIEmbedding.md)
- [PDFReader](classes/PDFReader.md)
- [Refine](classes/Refine.md)
- [Response](classes/Response.md)
- [ResponseSynthesizer](classes/ResponseSynthesizer.md)
- [RetrieverQueryEngine](classes/RetrieverQueryEngine.md)
- [SentenceSplitter](classes/SentenceSplitter.md)
- [SimpleChatEngine](classes/SimpleChatEngine.md)
- [SimpleDirectoryReader](classes/SimpleDirectoryReader.md)
- [SimpleNodeParser](classes/SimpleNodeParser.md)
- [SimpleResponseBuilder](classes/SimpleResponseBuilder.md)
- [SubQuestionOutputParser](classes/SubQuestionOutputParser.md)
- [SubQuestionQueryEngine](classes/SubQuestionQueryEngine.md)
- [TextFileReader](classes/TextFileReader.md)
- [TextNode](classes/TextNode.md)
- [TreeSummarize](classes/TreeSummarize.md)
- [VectorIndexRetriever](classes/VectorIndexRetriever.md)
- [VectorStoreIndex](classes/VectorStoreIndex.md)
## Interfaces
- [BaseIndexInit](interfaces/BaseIndexInit.md)
- [BaseOutputParser](interfaces/BaseOutputParser.md)
- [BaseQueryEngine](interfaces/BaseQueryEngine.md)
- [BaseQuestionGenerator](interfaces/BaseQuestionGenerator.md)
- [BaseReader](interfaces/BaseReader.md)
- [BaseRetriever](interfaces/BaseRetriever.md)
- [BaseTool](interfaces/BaseTool.md)
- [ChatEngine](interfaces/ChatEngine.md)
- [ChatMessage](interfaces/ChatMessage.md)
- [ChatResponse](interfaces/ChatResponse.md)
- [Event](interfaces/Event.md)
- [GenericFileSystem](interfaces/GenericFileSystem.md)
- [LLM](interfaces/LLM.md)
- [NodeParser](interfaces/NodeParser.md)
- [NodeWithEmbedding](interfaces/NodeWithEmbedding.md)
- [NodeWithScore](interfaces/NodeWithScore.md)
- [QueryEngineTool](interfaces/QueryEngineTool.md)
- [RelatedNodeInfo](interfaces/RelatedNodeInfo.md)
- [RetrievalCallbackResponse](interfaces/RetrievalCallbackResponse.md)
- [ServiceContext](interfaces/ServiceContext.md)
- [ServiceContextOptions](interfaces/ServiceContextOptions.md)
- [StorageContext](interfaces/StorageContext.md)
- [StreamCallbackResponse](interfaces/StreamCallbackResponse.md)
- [StreamToken](interfaces/StreamToken.md)
- [StructuredOutput](interfaces/StructuredOutput.md)
- [SubQuestion](interfaces/SubQuestion.md)
- [ToolMetadata](interfaces/ToolMetadata.md)
- [VectorIndexConstructorProps](interfaces/VectorIndexConstructorProps.md)
- [VectorIndexOptions](interfaces/VectorIndexOptions.md)
- [WalkableFileSystem](interfaces/WalkableFileSystem.md)
## Type Aliases
### CompleteFileSystem
Ƭ **CompleteFileSystem**: [`GenericFileSystem`](interfaces/GenericFileSystem.md) & [`WalkableFileSystem`](interfaces/WalkableFileSystem.md)
#### Defined in
[storage/FileSystem.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L49)
___
### CompletionResponse
Ƭ **CompletionResponse**: [`ChatResponse`](interfaces/ChatResponse.md)
#### Defined in
[llm/LLM.ts:25](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L25)
___
### EventTag
Ƭ **EventTag**: ``"intermediate"`` \| ``"final"``
#### Defined in
[callbacks/CallbackManager.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L11)
___
### EventType
Ƭ **EventType**: ``"retrieve"`` \| ``"llmPredict"`` \| ``"wrapper"``
#### Defined in
[callbacks/CallbackManager.ts:12](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/callbacks/CallbackManager.ts#L12)
___
### RelatedNodeType
Ƭ **RelatedNodeType**: [`RelatedNodeInfo`](interfaces/RelatedNodeInfo.md) \| [`RelatedNodeInfo`](interfaces/RelatedNodeInfo.md)[]
#### Defined in
[Node.ts:32](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Node.ts#L32)
___
### SimpleDirectoryReaderLoadDataProps
Ƭ **SimpleDirectoryReaderLoadDataProps**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `defaultReader?` | [`BaseReader`](interfaces/BaseReader.md) \| ``null`` |
| `directoryPath` | `string` |
| `fileExtToReader?` | `Record`<`string`, [`BaseReader`](interfaces/BaseReader.md)\> |
| `fs?` | [`CompleteFileSystem`](modules.md#completefilesystem) |
#### Defined in
[readers/SimpleDirectoryReader.ts:26](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/readers/SimpleDirectoryReader.ts#L26)
___
### SimplePrompt
Ƭ **SimplePrompt**: (`input`: `Record`<`string`, `string`\>) => `string`
#### Type declaration
▸ (`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
##### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
##### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
## Variables
### ALL\_AVAILABLE\_LLAMADEUCE\_MODELS
• `Const` **ALL\_AVAILABLE\_LLAMADEUCE\_MODELS**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `Llama-2-13b-chat` | { `contextWindow`: `number` = 4096; `replicateApi`: `string` = "a16z-infra/llama13b-v2-chat:df7690f1994d94e96ad9d568eac121aecf50684a0b0963b25a41cc40061269e5" } |
| `Llama-2-13b-chat.contextWindow` | `number` |
| `Llama-2-13b-chat.replicateApi` | `string` |
| `Llama-2-70b-chat` | { `contextWindow`: `number` = 4096; `replicateApi`: `string` = "replicate/llama70b-v2-chat:e951f18578850b652510200860fc4ea62b3b16fac280f83ff32282f87bbd2e48" } |
| `Llama-2-70b-chat.contextWindow` | `number` |
| `Llama-2-70b-chat.replicateApi` | `string` |
| `Llama-2-7b-chat` | { `contextWindow`: `number` = 4096; `replicateApi`: `string` = "a16z-infra/llama7b-v2-chat:4f0a4744c7295c024a1de15e1a63c880d3da035fa1f49bfd344fe076074c8eea" } |
| `Llama-2-7b-chat.contextWindow` | `number` |
| `Llama-2-7b-chat.replicateApi` | `string` |
#### Defined in
[llm/LLM.ts:152](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L152)
___
### ALL\_AVAILABLE\_OPENAI\_MODELS
• `Const` **ALL\_AVAILABLE\_OPENAI\_MODELS**: `Object`
We currently support GPT-3.5 and GPT-4 models
#### Type declaration
| Name | Type |
| :------ | :------ |
| `gpt-3.5-turbo` | { `contextWindow`: `number` = 4097 } |
| `gpt-3.5-turbo.contextWindow` | `number` |
| `gpt-3.5-turbo-16k` | { `contextWindow`: `number` = 16384 } |
| `gpt-3.5-turbo-16k.contextWindow` | `number` |
| `gpt-4` | { `contextWindow`: `number` = 8192 } |
| `gpt-4.contextWindow` | `number` |
| `gpt-4-32k` | { `contextWindow`: `number` = 32768 } |
| `gpt-4-32k.contextWindow` | `number` |
#### Defined in
[llm/LLM.ts:57](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L57)
___
### DEFAULT\_CHUNK\_OVERLAP
• `Const` **DEFAULT\_CHUNK\_OVERLAP**: ``20``
#### Defined in
[constants.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L5)
___
### DEFAULT\_CHUNK\_OVERLAP\_RATIO
• `Const` **DEFAULT\_CHUNK\_OVERLAP\_RATIO**: ``0.1``
#### Defined in
[constants.ts:6](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L6)
___
### DEFAULT\_CHUNK\_SIZE
• `Const` **DEFAULT\_CHUNK\_SIZE**: ``1024``
#### Defined in
[constants.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L4)
___
### DEFAULT\_COLLECTION
• `Const` **DEFAULT\_COLLECTION**: ``"data"``
#### Defined in
[storage/constants.ts:1](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/constants.ts#L1)
___
### DEFAULT\_CONTEXT\_WINDOW
• `Const` **DEFAULT\_CONTEXT\_WINDOW**: ``3900``
#### Defined in
[constants.ts:1](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L1)
___
### DEFAULT\_DOC\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_DOC\_STORE\_PERSIST\_FILENAME**: ``"docstore.json"``
#### Defined in
[storage/constants.ts:4](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/constants.ts#L4)
___
### DEFAULT\_EMBEDDING\_DIM
• `Const` **DEFAULT\_EMBEDDING\_DIM**: ``1536``
#### Defined in
[constants.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L10)
___
### DEFAULT\_FS
• `Const` **DEFAULT\_FS**: [`GenericFileSystem`](interfaces/GenericFileSystem.md) \| [`CompleteFileSystem`](modules.md#completefilesystem)
#### Defined in
[storage/FileSystem.ts:62](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L62)
___
### DEFAULT\_GRAPH\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_GRAPH\_STORE\_PERSIST\_FILENAME**: ``"graph_store.json"``
#### Defined in
[storage/constants.ts:6](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/constants.ts#L6)
___
### DEFAULT\_INDEX\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_INDEX\_STORE\_PERSIST\_FILENAME**: ``"index_store.json"``
#### Defined in
[storage/constants.ts:3](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/constants.ts#L3)
___
### DEFAULT\_NAMESPACE
• `Const` **DEFAULT\_NAMESPACE**: ``"docstore"``
#### Defined in
[storage/constants.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/constants.ts#L7)
___
### DEFAULT\_NUM\_OUTPUTS
• `Const` **DEFAULT\_NUM\_OUTPUTS**: ``256``
#### Defined in
[constants.ts:2](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L2)
___
### DEFAULT\_PADDING
• `Const` **DEFAULT\_PADDING**: ``5``
#### Defined in
[constants.ts:11](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L11)
___
### DEFAULT\_PERSIST\_DIR
• `Const` **DEFAULT\_PERSIST\_DIR**: ``"./storage"``
#### Defined in
[storage/constants.ts:2](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/constants.ts#L2)
___
### DEFAULT\_SIMILARITY\_TOP\_K
• `Const` **DEFAULT\_SIMILARITY\_TOP\_K**: ``2``
#### Defined in
[constants.ts:7](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/constants.ts#L7)
___
### DEFAULT\_VECTOR\_STORE\_PERSIST\_FILENAME
• `Const` **DEFAULT\_VECTOR\_STORE\_PERSIST\_FILENAME**: ``"vector_store.json"``
#### Defined in
[storage/constants.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/constants.ts#L5)
___
### GPT4\_MODELS
• `Const` **GPT4\_MODELS**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `gpt-4` | { `contextWindow`: `number` = 8192 } |
| `gpt-4.contextWindow` | `number` |
| `gpt-4-32k` | { `contextWindow`: `number` = 32768 } |
| `gpt-4-32k.contextWindow` | `number` |
#### Defined in
[llm/LLM.ts:44](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L44)
___
### TURBO\_MODELS
• `Const` **TURBO\_MODELS**: `Object`
#### Type declaration
| Name | Type |
| :------ | :------ |
| `gpt-3.5-turbo` | { `contextWindow`: `number` = 4097 } |
| `gpt-3.5-turbo.contextWindow` | `number` |
| `gpt-3.5-turbo-16k` | { `contextWindow`: `number` = 16384 } |
| `gpt-3.5-turbo-16k.contextWindow` | `number` |
#### Defined in
[llm/LLM.ts:49](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/llm/LLM.ts#L49)
___
### globalsHelper
• `Const` **globalsHelper**: `GlobalsHelper`
#### Defined in
[GlobalsHelper.ts:50](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/GlobalsHelper.ts#L50)
## Functions
### buildToolsText
▸ **buildToolsText**(`tools`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `tools` | [`ToolMetadata`](interfaces/ToolMetadata.md)[] |
#### Returns
`string`
#### Defined in
[Prompt.ts:198](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L198)
___
### contextSystemPrompt
▸ **contextSystemPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
___
### defaultChoiceSelectPrompt
▸ **defaultChoiceSelectPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
___
### defaultCondenseQuestionPrompt
▸ **defaultCondenseQuestionPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
___
### defaultRefinePrompt
▸ **defaultRefinePrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
___
### defaultSubQuestionPrompt
▸ **defaultSubQuestionPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
___
### defaultSummaryPrompt
▸ **defaultSummaryPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
___
### defaultTextQaPrompt
▸ **defaultTextQaPrompt**(`input`): `string`
A SimplePrompt is a function that takes a dictionary of inputs and returns a string.
NOTE this is a different interface compared to LlamaIndex Python
NOTE 2: we default to empty string to make it easy to calculate prompt sizes
#### Parameters
| Name | Type |
| :------ | :------ |
| `input` | `Record`<`string`, `string`\> |
#### Returns
`string`
#### Defined in
[Prompt.ts:10](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L10)
___
### exists
▸ **exists**(`fs`, `path`): `Promise`<`boolean`\>
Checks if a file exists.
Analogous to the os.path.exists function from Python.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `fs` | [`GenericFileSystem`](interfaces/GenericFileSystem.md) | The filesystem to use. |
| `path` | `string` | The path to the file to check. |
#### Returns
`Promise`<`boolean`\>
A promise that resolves to true if the file exists, false otherwise.
#### Defined in
[storage/FileSystem.ts:74](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L74)
___
### getNodeFS
▸ **getNodeFS**(): [`CompleteFileSystem`](modules.md#completefilesystem)
#### Returns
[`CompleteFileSystem`](modules.md#completefilesystem)
#### Defined in
[storage/FileSystem.ts:51](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L51)
___
### getNodesFromDocument
▸ **getNodesFromDocument**(`document`, `textSplitter`, `includeMetadata?`, `includePrevNextRel?`): [`TextNode`](classes/TextNode.md)[]
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `document` | [`Document`](classes/Document.md) | `undefined` |
| `textSplitter` | [`SentenceSplitter`](classes/SentenceSplitter.md) | `undefined` |
| `includeMetadata` | `boolean` | `true` |
| `includePrevNextRel` | `boolean` | `true` |
#### Returns
[`TextNode`](classes/TextNode.md)[]
#### Defined in
[NodeParser.ts:15](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L15)
___
### getResponseBuilder
▸ **getResponseBuilder**(`serviceContext`, `responseMode?`): `BaseResponseBuilder`
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](interfaces/ServiceContext.md) |
| `responseMode?` | `ResponseMode` |
#### Returns
`BaseResponseBuilder`
#### Defined in
[ResponseSynthesizer.ts:262](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ResponseSynthesizer.ts#L262)
___
### getTextSplitsFromDocument
▸ **getTextSplitsFromDocument**(`document`, `textSplitter`): `string`[]
#### Parameters
| Name | Type |
| :------ | :------ |
| `document` | [`Document`](classes/Document.md) |
| `textSplitter` | [`SentenceSplitter`](classes/SentenceSplitter.md) |
#### Returns
`string`[]
#### Defined in
[NodeParser.ts:5](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/NodeParser.ts#L5)
___
### getTopKEmbeddings
▸ **getTopKEmbeddings**(`queryEmbedding`, `embeddings`, `similarityTopK?`, `embeddingIds?`, `similarityCutoff?`): [`number`[], `any`[]]
Get the top K embeddings from a list of embeddings ordered by similarity to the query.
#### Parameters
| Name | Type | Default value | Description |
| :------ | :------ | :------ | :------ |
| `queryEmbedding` | `number`[] | `undefined` | |
| `embeddings` | `number`[][] | `undefined` | list of embeddings to consider |
| `similarityTopK` | `number` | `DEFAULT_SIMILARITY_TOP_K` | max number of embeddings to return, default 2 |
| `embeddingIds` | ``null`` \| `any`[] | `null` | ids of embeddings in the embeddings list |
| `similarityCutoff` | ``null`` \| `number` | `null` | minimum similarity score |
#### Returns
[`number`[], `any`[]]
#### Defined in
[Embedding.ts:77](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L77)
___
### getTopKEmbeddingsLearner
▸ **getTopKEmbeddingsLearner**(`queryEmbedding`, `embeddings`, `similarityTopK?`, `embeddingsIds?`, `queryMode?`): [`number`[], `any`[]]
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `queryEmbedding` | `number`[] | `undefined` |
| `embeddings` | `number`[][] | `undefined` |
| `similarityTopK?` | `number` | `undefined` |
| `embeddingsIds?` | `any`[] | `undefined` |
| `queryMode` | `VectorStoreQueryMode` | `VectorStoreQueryMode.SVM` |
#### Returns
[`number`[], `any`[]]
#### Defined in
[Embedding.ts:119](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L119)
___
### getTopKMMREmbeddings
▸ **getTopKMMREmbeddings**(`queryEmbedding`, `embeddings`, `similarityFn?`, `similarityTopK?`, `embeddingIds?`, `_similarityCutoff?`, `mmrThreshold?`): [`number`[], `any`[]]
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `queryEmbedding` | `number`[] | `undefined` |
| `embeddings` | `number`[][] | `undefined` |
| `similarityFn` | ``null`` \| (...`args`: `any`[]) => `number` | `null` |
| `similarityTopK` | ``null`` \| `number` | `null` |
| `embeddingIds` | ``null`` \| `any`[] | `null` |
| `_similarityCutoff` | ``null`` \| `number` | `null` |
| `mmrThreshold` | ``null`` \| `number` | `null` |
#### Returns
[`number`[], `any`[]]
#### Defined in
[Embedding.ts:131](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L131)
___
### messagesToHistoryStr
▸ **messagesToHistoryStr**(`messages`): `string`
#### Parameters
| Name | Type |
| :------ | :------ |
| `messages` | [`ChatMessage`](interfaces/ChatMessage.md)[] |
#### Returns
`string`
#### Defined in
[Prompt.ts:300](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Prompt.ts#L300)
___
### serviceContextFromDefaults
▸ **serviceContextFromDefaults**(`options?`): [`ServiceContext`](interfaces/ServiceContext.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `options?` | [`ServiceContextOptions`](interfaces/ServiceContextOptions.md) |
#### Returns
[`ServiceContext`](interfaces/ServiceContext.md)
#### Defined in
[ServiceContext.ts:30](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L30)
___
### serviceContextFromServiceContext
▸ **serviceContextFromServiceContext**(`serviceContext`, `options`): `Object`
#### Parameters
| Name | Type |
| :------ | :------ |
| `serviceContext` | [`ServiceContext`](interfaces/ServiceContext.md) |
| `options` | [`ServiceContextOptions`](interfaces/ServiceContextOptions.md) |
#### Returns
`Object`
| Name | Type |
| :------ | :------ |
| `callbackManager` | [`CallbackManager`](classes/CallbackManager.md) |
| `embedModel` | [`BaseEmbedding`](classes/BaseEmbedding.md) |
| `llm` | [`LLM`](interfaces/LLM.md) |
| `nodeParser` | [`NodeParser`](interfaces/NodeParser.md) |
| `promptHelper` | `PromptHelper` |
#### Defined in
[ServiceContext.ts:48](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/ServiceContext.ts#L48)
___
### similarity
▸ **similarity**(`embedding1`, `embedding2`, `mode?`): `number`
The similarity between two embeddings.
#### Parameters
| Name | Type | Default value |
| :------ | :------ | :------ |
| `embedding1` | `number`[] | `undefined` |
| `embedding2` | `number`[] | `undefined` |
| `mode` | [`SimilarityType`](enums/SimilarityType.md) | `SimilarityType.DEFAULT` |
#### Returns
`number`
similartiy score with higher numbers meaning the two embeddings are more similar
#### Defined in
[Embedding.ts:22](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/Embedding.ts#L22)
___
### storageContextFromDefaults
▸ **storageContextFromDefaults**(`«destructured»`): `Promise`<[`StorageContext`](interfaces/StorageContext.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | `BuilderParams` |
#### Returns
`Promise`<[`StorageContext`](interfaces/StorageContext.md)\>
#### Defined in
[storage/StorageContext.ts:28](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/StorageContext.ts#L28)
___
### walk
▸ **walk**(`fs`, `dirPath`): `AsyncIterable`<`string`\>
Recursively traverses a directory and yields all the paths to the files in it.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `fs` | [`WalkableFileSystem`](interfaces/WalkableFileSystem.md) | The filesystem to use. |
| `dirPath` | `string` | The path to the directory to traverse. |
#### Returns
`AsyncIterable`<`string`\>
#### Defined in
[storage/FileSystem.ts:91](https://github.com/run-llama/LlamaIndexTS/blob/3e85a90/packages/core/src/storage/FileSystem.ts#L91)
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# High-Level Concepts
LlamaIndex.TS helps you build LLM-powered applications (e.g. Q&A, chatbot) over custom data.
In this high-level concepts guide, you will learn:
* how an LLM can answer questions using your own data.
* key concepts and modules in LlamaIndex.TS for composing your own query pipeline.
## Answering Questions Across Your Data
LlamaIndex uses a two stage method when using an LLM with your data:
1) **indexing stage**: preparing a knowledge base, and
2) **querying stage**: retrieving relevant context from the knowledge to assist the LLM in responding to a question
![](./_static/concepts/rag.jpg)
This process is also known as Retrieval Augmented Generation (RAG).
LlamaIndex.TS provides the essential toolkit for making both steps super easy.
Let's explore each stage in detail.
### Indexing Stage
LlamaIndex.TS help you prepare the knowledge base with a suite of data connectors and indexes.
![](./_static/concepts/indexing.jpg)
[**Data Loaders**](./modules/high_level/data_loader.md):
A data connector (i.e. `Reader`) ingest data from different data sources and data formats into a simple `Document` representation (text and simple metadata).
[**Documents / Nodes**](./modules/high_level/documents_and_nodes.md): A `Document` is a generic container around any data source - for instance, a PDF, an API output, or retrieved data from a database. A `Node` is the atomic unit of data in LlamaIndex and represents a "chunk" of a source `Document`. It's a rich representation that includes metadata and relationships (to other nodes) to enable accurate and expressive retrieval operations.
[**Data Indexes**](./modules/high_level/data_index.md):
Once you've ingested your data, LlamaIndex helps you index data into a format that's easy to retrieve.
Under the hood, LlamaIndex parses the raw documents into intermediate representations, calculates vector embeddings, and stores your data in-memory or to disk.
### Querying Stage
In the querying stage, the query pipeline retrieves the most relevant context given a user query,
and pass that to the LLM (along with the query) to synthesize a response.
This gives the LLM up-to-date knowledge that is not in its original training data,
(also reducing hallucination).
The key challenge in the querying stage is retrieval, orchestration, and reasoning over (potentially many) knowledge bases.
LlamaIndex provides composable modules that help you build and integrate RAG pipelines for Q&A (query engine), chatbot (chat engine), or as part of an agent.
These building blocks can be customized to reflect ranking preferences, as well as composed to reason over multiple knowledge bases in a structured way.
![](./_static/concepts/querying.jpg)
#### Building Blocks
[**Retrievers**](./modules/low_level/retriever.md):
A retriever defines how to efficiently retrieve relevant context from a knowledge base (i.e. index) when given a query.
The specific retrieval logic differs for difference indices, the most popular being dense retrieval against a vector index.
[**Response Synthesizers**](./modules/low_level/response_synthesizer.md):
A response synthesizer generates a response from an LLM, using a user query and a given set of retrieved text chunks.
#### Pipelines
[**Query Engines**](./modules/high_level/query_engine.md):
A query engine is an end-to-end pipeline that allow you to ask question over your data.
It takes in a natural language query, and returns a response, along with reference context retrieved and passed to the LLM.
[**Chat Engines**](./modules/high_level/chat_engine.md):
A chat engine is an end-to-end pipeline for having a conversation with your data
(multiple back-and-forth instead of a single question & answer).
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# End to End Examples
We include several end-to-end examples using LlamaIndex.TS in the repository
## [Chat Engine](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/chatEngine.ts)
Read a file and chat about it with the LLM.
## [List Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/listIndex.ts)
Create a list index and query it. This example also use the `LLMRetriever`, which will use the LLM to select the best nodes to use when generating answer.
## [Vector Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/vectorIndex.ts)
Create a vector index and query it. The vector index will use embeddings to fetch the top k most relevant nodes. By default, the top k is 2.
## [Save / Load an Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/storageContext.ts)
Create and load a vector index. Persistance to disk in LlamaIndex.TS happens automatically once a storage context object is created.
## [Customized Vector Index](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/vectorIndexCustomize.ts)
Create a vector index and query it, while also configuring the the `LLM`, the `ServiceContext`, and the `similarity_top_k`.
## [OpenAI LLM](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/openai.ts)
Create an OpenAI LLM and directly use it for chat.
## [Llama2 DeuceLLM](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/llamadeuce.ts)
Create a Llama-2 LLM and directly use it for chat.
## [SubQuestionQueryEngine](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/subquestion.ts)
Uses the `SubQuestionQueryEngine`, which breaks complex queries into multiple questions, and then aggreates a response across the answers to all sub-questions.
## [Low Level Modules](https://github.com/run-llama/LlamaIndexTS/blob/main/apps/simple/lowlevel.ts)
This example uses several low-level components, which removes the need for an actual query engine. These components can be used anywhere, in any application, or customized and sub-classed to meet your own needs.
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# Installation and Setup
## Installation from NPM
Make sure you have NodeJS v18 or higher.
```bash npm2yarn
npm install llamaindex
```
## Environment variables
Our examples use OpenAI by default. You'll need to set up your Open AI key like so:
```bash
export OPENAI_API_KEY="sk-......" # Replace with your key from https://platform.openai.com/account/api-keys
```
If you want to have it automatically loaded every time, add it to your .zshrc/.bashrc.
WARNING: do not check in your OpenAI key into version control.
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# What is LlamaIndex.TS?
LlamaIndex.TS is a data framework for LLM applications to ingest, structure, and access private or domain-specific data. While a python package is also available (see [here](https://gpt-index.readthedocs.io/en/latest/)), LlamaIndex.TS offers core features in a simple package, optimized for usage with TypeScript.
## 🚀 Why LlamaIndex.TS?
At their core, LLMs offer a natural language interface between humans and inferred data. Widely available models come pre-trained on huge amounts of publicly available data, from Wikipedia and mailing lists to textbooks and source code.
Applications built on top of LLMs often require augmenting these models with private or domain-specific data. Unfortunately, that data can be distributed across siloed applications and data stores. It's behind APIs, in SQL databases, or trapped in PDFs and slide decks.
That's where **LlamaIndex.TS** comes in.
## 🦙 How can LlamaIndex.TS help?
LlamaIndex.TS provides the following tools:
- **Data loading** ingest your existing `txt` and `pdf` data directly
- **Data indexes** structure your data in intermediate representations that are easy and performant for LLMs to consume.
- **Engines** provide natural language access to your data. For example:
- Query engines are powerful retrieval interfaces for knowledge-augmented output.
- Chat engines are conversational interfaces for multi-message, "back and forth" interactions with your data.
## 👨‍👩‍👧‍👦 Who is LlamaIndex for?
LlamaIndex.TS provides a core set of tools, essential for anyone building LLM apps with JavaScript and TypeScript.
Our high-level API allows beginner users to use LlamaIndex.TS to ingest and query their data.
For more complex applications, our lower-level APIs allow advanced users to customize and extend any module—data connectors, indices, retrievers, and query engines, to fit their needs.
## Getting Started
`npm install llamaindex`
Our documentation includes [Installation Instructions](./installation.md) and a [Starter Tutorial](./starter.md) to build your first application.
Once you're up and running, [High-Level Concepts](./concepts.md) has an overview of LlamaIndex's modular architecture. For more hands-on practical examples, look through our [End-to-End Tutorials](./end_to_end.md).
## 🗺️ Ecosystem
To download or contribute, find LlamaIndex on:
- Github: https://github.com/run-llama/LlamaIndexTS
- NPM: https://www.npmjs.com/package/llamaindex
## Community
Need help? Have a feature suggestion? Join the LlamaIndex community:
- Twitter: https://twitter.com/llama_index
- Discord https://discord.gg/dGcwcsnxhU

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