Adds chat interface (#509)

CC @dqbd @eyurtsev
This commit is contained in:
Jacob Lee
2024-03-08 17:28:59 -08:00
committed by GitHub
parent 5e592462f5
commit dc48c2ef1a
64 changed files with 16949 additions and 6 deletions
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@@ -330,6 +330,56 @@ runnable and share a link with the configuration:
<img src="https://github.com/langchain-ai/langserve/assets/3205522/86ce9c59-f8e4-4d08-9fa3-62030e0f521d" width="50%"/>
</p>
## Chat playground
LangServe also makes a chat-focused playground available at `/my_runnable/chat_playground/`.
Unlike the general playground, only certain types of runnables are supported - the runnable's input schema must
be a `dict` with a single key, and that key's value must be a list of chat messages. The runnable
can return either an `AIMessage` or a string.
Here's an example route:
```python
# Declare a chain
prompt = ChatPromptTemplate.from_messages(
[
("system", "You are a helpful, professional assistant named Cob."),
MessagesPlaceholder(variable_name="messages"),
]
)
chain = prompt | ChatAnthropic(model="claude-2")
class InputChat(BaseModel):
"""Input for the chat endpoint."""
messages: List[Union[HumanMessage, AIMessage, SystemMessage]] = Field(
...,
description="The chat messages representing the current conversation.",
)
add_routes(
app,
chain.with_types(input_type=InputChat),
enable_feedback_endpoint=True,
enable_public_trace_link_endpoint=True,
)
```
If you are using LangSmith, you can also set `enable_feedback_endpoint=True` on your route to enable thumbs-up/thumbs-down buttons
after each message, and `enable_public_trace_link_endpoint=True` to add a button that creates a public traces for runs.
Here's an example with the above two options turned on:
<p align="center">
<img src="./.github/img/chat_playground.png" width="50%"/>
</p>
Note: If you enable public trace links, the internals of your chain will be exposed. We recommend only using this setting
for demos or testing.
## Legacy Chains
LangServe works with both Runnables (constructed
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#!/usr/bin/env python
"""Example of a simple chatbot that just passes current conversation
state back and forth between server and client.
"""
from typing import List, Union
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from langchain.chat_models import ChatAnthropic
from langchain_core.messages import AIMessage, HumanMessage, SystemMessage
from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
from langserve import add_routes
from langserve.pydantic_v1 import BaseModel, Field
app = FastAPI(
title="LangChain Server",
version="1.0",
description="Spin up a simple api server using Langchain's Runnable interfaces",
)
# Set all CORS enabled origins
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
expose_headers=["*"],
)
# Declare a chain
prompt = ChatPromptTemplate.from_messages(
[
("system", "You are a helpful, professional assistant named Cob."),
MessagesPlaceholder(variable_name="messages"),
]
)
chain = prompt | ChatAnthropic(model="claude-2")
class InputChat(BaseModel):
"""Input for the chat endpoint."""
messages: List[Union[HumanMessage, AIMessage, SystemMessage]] = Field(
...,
description="The chat messages representing the current conversation.",
)
add_routes(
app,
chain.with_types(input_type=InputChat),
enable_feedback_endpoint=True,
enable_public_trace_link_endpoint=True,
)
if __name__ == "__main__":
import uvicorn
uvicorn.run(app, host="localhost", port=8000)
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@@ -35,6 +35,7 @@ from starlette.requests import Request
from starlette.responses import JSONResponse, Response
from langserve.callbacks import AsyncEventAggregatorCallback, CallbackEventDict
from langserve.chat_playground import serve_chat_playground
from langserve.lzstring import LZString
from langserve.playground import serve_playground
from langserve.pydantic_v1 import BaseModel, Field, ValidationError, create_model
@@ -1366,6 +1367,54 @@ class APIHandler:
public_trace_link_enabled,
)
async def chat_playground(
self,
file_path: str,
request: Request,
*,
config_hash: str = "",
server_config: Optional[RunnableConfig] = None,
) -> Any:
"""Return the playground of the runnable."""
with _with_validation_error_translation():
user_provided_config = await _unpack_request_config(
config_hash,
config_keys=self._config_keys,
model=self._ConfigPayload,
request=request,
# Do not use per request config modifier for output schema
# since it's unclear why it would make sense to modify
# this using a per request config modifier.
# If this is needed, for some reason please file an issue explaining
# the user case.
per_req_config_modifier=None,
server_config=server_config,
)
config = _update_config_with_defaults(
self._run_name, user_provided_config, request
)
chat_playground_url = (
request.scope.get("root_path", "").rstrip("/")
+ self._base_url
+ "/chat_playground"
)
feedback_enabled = tracing_is_enabled() and self._enable_feedback_endpoint
public_trace_link_enabled = (
tracing_is_enabled() and self._enable_public_trace_link_endpoint
)
return await serve_chat_playground(
self._runnable.with_config(config),
self._runnable.with_config(config).input_schema,
self._config_keys,
chat_playground_url,
file_path,
feedback_enabled,
public_trace_link_enabled,
)
async def create_feedback(
self, feedback_create_req: FeedbackCreateRequest
) -> Feedback:
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import json
import mimetypes
import os
from string import Template
from typing import Sequence, Type
from fastapi.responses import Response
from langchain.schema.runnable import Runnable
from langserve.pydantic_v1 import BaseModel
class ChatPlaygroundTemplate(Template):
delimiter = "____"
def _get_mimetype(path: str) -> str:
"""Get mimetype for file.
Custom implementation of mimetypes.guess_type that
uses the file extension to determine the mimetype for some files.
This is necessary due to: https://bugs.python.org/issue43975
Resolves issue: https://github.com/langchain-ai/langserve/issues/245
Args:
path (str): Path to file
Returns:
str: Mimetype of file
"""
try:
file_extension = path.lower().split(".")[-1]
except IndexError:
return mimetypes.guess_type(path)[0]
if file_extension == "js":
return "application/javascript"
elif file_extension == "css":
return "text/css"
elif file_extension in ["htm", "html"]:
return "text/html"
# If the file extension is not one of the specified ones,
# use the default guess method
mime_type = mimetypes.guess_type(path)[0]
return mime_type
async def serve_chat_playground(
runnable: Runnable,
input_schema: Type[BaseModel],
config_keys: Sequence[str],
base_url: str,
file_path: str,
feedback_enabled: bool,
public_trace_link_enabled: bool,
) -> Response:
"""Serve the playground."""
local_file_path = os.path.abspath(
os.path.join(
os.path.dirname(__file__),
"./chat_playground/dist",
file_path or "index.html",
)
)
base_dir = os.path.abspath(
os.path.join(os.path.dirname(__file__), "./chat_playground/dist")
)
if base_dir != os.path.commonpath((base_dir, local_file_path)):
return Response("Not Found", status_code=404)
try:
with open(local_file_path, encoding="utf-8") as f:
mime_type = _get_mimetype(local_file_path)
if mime_type in ("text/html", "text/css", "application/javascript"):
response = ChatPlaygroundTemplate(f.read()).substitute(
LANGSERVE_BASE_URL=base_url[1:]
if base_url.startswith("/")
else base_url,
LANGSERVE_CONFIG_SCHEMA=json.dumps(
runnable.config_schema(include=config_keys).schema()
),
LANGSERVE_INPUT_SCHEMA=json.dumps(input_schema.schema()),
LANGSERVE_FEEDBACK_ENABLED=json.dumps(
"true" if feedback_enabled else "false"
),
LANGSERVE_PUBLIC_TRACE_LINK_ENABLED=json.dumps(
"true" if public_trace_link_enabled else "false"
),
)
else:
response = f.buffer.read()
except FileNotFoundError:
return Response("Not Found", status_code=404)
return Response(response, media_type=mime_type)
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module.exports = {
root: true,
env: { browser: true, es2020: true },
extends: [
'eslint:recommended',
'plugin:@typescript-eslint/recommended',
'plugin:react-hooks/recommended',
],
ignorePatterns: ['dist', '.eslintrc.cjs'],
parser: '@typescript-eslint/parser',
plugins: ['react-refresh'],
rules: {
'react-refresh/only-export-components': [
'warn',
{ allowConstantExport: true },
],
},
}
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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
lerna-debug.log*
node_modules
dist
dist-ssr
*.local
# Editor directories and files
.vscode/*
!.vscode/extensions.json
.idea
.DS_Store
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?
.yarn
!dist
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# React + TypeScript + Vite
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
Currently, two official plugins are available:
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/README.md) uses [Babel](https://babeljs.io/) for Fast Refresh
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
## Expanding the ESLint configuration
If you are developing a production application, we recommend updating the configuration to enable type aware lint rules:
- Configure the top-level `parserOptions` property like this:
```js
parserOptions: {
ecmaVersion: 'latest',
sourceType: 'module',
project: ['./tsconfig.json', './tsconfig.node.json'],
tsconfigRootDir: __dirname,
},
```
- Replace `plugin:@typescript-eslint/recommended` to `plugin:@typescript-eslint/recommended-type-checked` or `plugin:@typescript-eslint/strict-type-checked`
- Optionally add `plugin:@typescript-eslint/stylistic-type-checked`
- Install [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) and add `plugin:react/recommended` & `plugin:react/jsx-runtime` to the `extends` list
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" href="/____LANGSERVE_BASE_URL/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Chat Playground</title>
<script type="module" crossorigin src="/____LANGSERVE_BASE_URL/assets/index-b1c907c0.js"></script>
<link rel="stylesheet" href="/____LANGSERVE_BASE_URL/assets/index-a69b1f28.css">
</head>
<body>
<div id="root"></div>
<script>
try {
window.CONFIG_SCHEMA = ____LANGSERVE_CONFIG_SCHEMA;
window.INPUT_SCHEMA = ____LANGSERVE_INPUT_SCHEMA;
window.FEEDBACK_ENABLED = ____LANGSERVE_FEEDBACK_ENABLED;
window.PUBLIC_TRACE_LINK_ENABLED = ____LANGSERVE_PUBLIC_TRACE_LINK_ENABLED;
} catch (error) {
// pass
}
</script>
</body>
</html>
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" href="/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Chat Playground</title>
</head>
<body>
<div id="root"></div>
<script>
try {
window.CONFIG_SCHEMA = ____LANGSERVE_CONFIG_SCHEMA;
window.INPUT_SCHEMA = ____LANGSERVE_INPUT_SCHEMA;
window.FEEDBACK_ENABLED = ____LANGSERVE_FEEDBACK_ENABLED;
window.PUBLIC_TRACE_LINK_ENABLED = ____LANGSERVE_PUBLIC_TRACE_LINK_ENABLED;
} catch (error) {
// pass
}
</script>
<script type="module" src="/src/main.tsx"></script>
</body>
</html>
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{
"name": "langserve-chat-playground",
"private": true,
"version": "0.0.0",
"type": "module",
"packageManager": "yarn@1.22.19",
"scripts": {
"dev": "vite",
"build": "tsc && vite build",
"lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
"preview": "vite preview"
},
"dependencies": {
"@emotion/react": "^11.11.1",
"@emotion/styled": "^11.11.0",
"@jsonforms/core": "^3.2.1",
"@microsoft/fetch-event-source": "^2.0.1",
"@mui/icons-material": "^5.14.11",
"@mui/material": "^5.14.11",
"@mui/x-date-pickers": "^6.16.0",
"@radix-ui/react-toggle-group": "^1.0.4",
"clsx": "^2.0.0",
"dayjs": "^1.11.10",
"fast-json-patch": "^3.1.1",
"lodash": "^4.17.21",
"lz-string": "^1.5.0",
"react": "^18.2.0",
"react-dom": "^18.2.0",
"react-toastify": "^9.1.3",
"swr": "^2.2.4",
"tailwind-merge": "^1.14.0",
"use-debounce": "^9.0.4",
"vaul": "^0.7.3"
},
"devDependencies": {
"@types/lodash": "^4.14.200",
"@types/react": "^18.2.15",
"@types/react-dom": "^18.2.7",
"@typescript-eslint/eslint-plugin": "^6.0.0",
"@typescript-eslint/parser": "^6.0.0",
"@vitejs/plugin-react": "^4.0.3",
"autoprefixer": "^10.4.16",
"eslint": "^8.45.0",
"eslint-plugin-react-hooks": "^4.6.0",
"eslint-plugin-react-refresh": "^0.4.3",
"postcss": "^8.4.31",
"tailwindcss": "^3.3.3",
"typescript": "^5.0.2",
"vite": "^4.4.5",
"vite-plugin-svgr": "^4.1.0"
}
}
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export default {
plugins: {
tailwindcss: {},
autoprefixer: {},
},
};
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@tailwind base;
@tailwind components;
@tailwind utilities;
@layer base {
* {
color: #043D5C;
font-weight: 300;
@font-face {
font-family: 'Manrope';
src: url('/dist/Manrope-VariableFont_wght.ttf') format('truetype');
}
border-color: #043D5C;
}
input,
textarea,
select {
background: transparent;
}
/* clash between MUI and Tailwind */
input:focus,
textarea:focus,
select:focus {
box-shadow: none;
outline: none;
}
:root {
--popover: 0 0% 100%;
--background: #F8F7FF;
--divider-500: 210 40% 96.1%; /* slate-100 */
--divider-700: 214.3 31.8% 91.4%; /* slate-200 */
--ls-blue: 211.5 91.8% 61.8%;
--ls-black: 222.2 47.4% 11.2%; /* slate-900 */
--ls-gray-100: 215.4 16.3% 46.9%; /* slate-500 */
--ls-gray-200: 212.7 26.8% 83.9%; /* slate-300 */
--ls-gray-300: 214.3 31.8% 91.4%; /* slate-200 */
--ls-gray-400: 210 40% 96.1%; /* slate-100 */
--button-green: #162E2E;
--button-green-disabled: rgba(4, 61, 92, 0.20);
--button-inline: #006BA41A;
}
@media (prefers-color-scheme: dark) {
:root {
--popover: 240 11.6% 8.4%;
--divider-500: 217.2 32.6% 17.5%; /* slate-800 */
--divider-700: 215.3 25% 26.7%; /* slate-700 */
--ls-blue: 211.5 91.8% 61.8%;
--ls-black: 0 0% 100%; /* white */
--ls-gray-100: 215 20.2% 65.1%; /* slate-400 */
--ls-gray-200: 215.4 16.3% 46.9%; /* slate-500 */
--ls-gray-300: 215.3 25% 26.7%; /* slate-700 */
--ls-gray-400: 217.2 32.6% 17.5%; /* slate-800 */
}
}
}
.control {
@apply flex flex-col border border-divider-700 rounded-lg p-3 gap-1 relative bg-background transition-all outline-ls-blue/20;
@apply focus-within:border-ls-blue focus-within:outline focus-within:outline-4 focus-within:outline-ls-blue/20;
}
.control > label,
.control h6 {
@apply text-xs uppercase font-semibold text-ls-gray-100;
}
.control div .MuiGrid-item {
@apply pt-0;
}
.control > select {
@apply -ml-1;
}
.control > .input-description,
.control > .validation {
@apply absolute right-3 top-3 text-xs;
}
.group-layout {
@apply flex flex-col gap-4 bg-background p-4 border border-divider-700 rounded-lg;
}
.no-scrollbar {
scrollbar-width: none;
}
.no-scrollbar::-webkit-scrollbar {
display: none;
}
.vertical-layout {
@apply flex flex-col gap-4;
}
.share-button:hover {
background: linear-gradient(270deg, #BCB2FD 0.29%, #D65622 92%);
}
.share-button:hover > * {
color: white;
}
a {
color: blue;
text-decoration: underline;
}
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import "./App.css";
import { ChatWindow } from "./components/ChatWindow";
import { AppCallbackContext, useAppStreamCallbacks } from "./useStreamCallback";
import { useInputSchema } from "./useSchemas";
import { useStreamLog } from "./useStreamLog";
import { resolveApiUrl } from "./utils/url";
export function App() {
const { context, callbacks } = useAppStreamCallbacks();
const { startStream, stopStream } = useStreamLog(callbacks);
const inputSchema = useInputSchema({});
const inputProps = inputSchema?.data?.schema?.properties;
const isLoading = inputProps === undefined;
const inputKeys = Object.keys(inputProps ?? {});
const isSupported = isLoading || (inputKeys.length === 1 && inputProps[inputKeys[0]].type === "array");
return (
<div className="flex items-center flex-col text-ls-black bg-background">
<AppCallbackContext.Provider value={context}>
{isSupported
? <ChatWindow
startStream={startStream}
stopStream={stopStream}
inputKey={inputKeys[0]}
></ChatWindow>
: <div className="h-[100vh] w-[100vw] flex justify-center items-center text-xl">
<span className="text-center">
The chat playground is only supported for chains that take a single array of messages as input.
<br/>
You can test this chain in the standard <a href={resolveApiUrl("/playground").toString()}>LangServe playground</a>.
</span>
</div>}
</AppCallbackContext.Provider>
</div>
);
}
export default App;
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import { Ref } from "react";
import { cn } from "../utils/cn";
const COMMON_CLS = cn(
"text-lg col-[1] row-[1] m-0 resize-none overflow-hidden whitespace-pre-wrap break-words border-none bg-transparent p-0"
);
export function AutosizeTextarea(props: {
id?: string;
inputRef?: Ref<HTMLTextAreaElement>;
value?: string | null | undefined;
placeholder?: string;
className?: string;
onChange?: (e: string) => void;
onFocus?: () => void;
onBlur?: () => void;
onKeyDown?: (e: React.KeyboardEvent<HTMLTextAreaElement>) => void;
autoFocus?: boolean;
readOnly?: boolean;
cursorPointer?: boolean;
disabled?: boolean;
}) {
return (
<div className={cn("grid w-full", props.className) + " max-h-80 overflow-auto"}>
<textarea
ref={props.inputRef}
id={props.id}
className={cn(
COMMON_CLS,
"text-transparent caret-black"
)}
disabled={props.disabled}
value={props.value ?? ""}
rows={1}
onChange={(e) => {
const target = e.target as HTMLTextAreaElement;
props.onChange?.(target.value);
}}
onFocus={props.onFocus}
onBlur={props.onBlur}
placeholder={props.placeholder}
readOnly={props.readOnly}
autoFocus={props.autoFocus && !props.readOnly}
onKeyDown={props.onKeyDown}
/>
<div
aria-hidden
className={cn(COMMON_CLS, "pointer-events-none select-none")}
>
{props.value}{" "}
</div>
</div>
);
}
@@ -0,0 +1,79 @@
import { useState } from "react";
import { CorrectnessFeedback } from "./feedback/CorrectnessFeedback";
import { resolveApiUrl } from "../utils/url";
export type ChatMessageType = {
role: "human" | "ai" | "function" | "tool" | "system";
content: string;
runId?: string;
}
export function ChatMessage(props: {
message: ChatMessageType;
isLoading?: boolean;
onError?: (e: any) => void;
feedbackEnabled?: boolean;
publicTraceLinksEnabled?: boolean;
}) {
const { message, feedbackEnabled, publicTraceLinksEnabled, onError, isLoading } = props;
const { content, role, runId } = message;
const [publicTraceLink, setPublicTraceLink] = useState<string | null>(null);
const [messageActionIsLoading, setMessageActionIsLoading] = useState(false);
const openPublicTrace = async () => {
if (messageActionIsLoading) {
return;
}
if (publicTraceLink) {
window.open(publicTraceLink, '_blank');
return;
}
setMessageActionIsLoading(true);
const payload = { run_id: runId };
const response = await fetch(resolveApiUrl("/public_trace_link"), {
method: "PUT",
headers: { "Content-Type": "application/json" },
body: JSON.stringify(payload),
});
if (!response.ok) {
if (response.status === 404) {
onError?.(new Error(`Feedback endpoint not found. Please enable it in your LangServe endpoint.`));
} else {
try {
const errorResponse = await response.json();
onError?.(new Error(`${errorResponse.detail}`));
} catch (e) {
onError?.(new Error(`Request failed with status: ${response.status}`));
}
}
setMessageActionIsLoading(false);
throw new Error(`Failed request ${response.status}`)
}
const parsedResponse = await response.json();
setMessageActionIsLoading(false);
setPublicTraceLink(parsedResponse.public_url);
window.open(parsedResponse.public_url, '_blank');
};
return (
<div className="mb-8">
<p className="font-medium text-transform uppercase mb-2">{role}</p>
<p>{content}</p>
{role === "ai" && !isLoading && runId != null && (
<div className="mt-2 flex items-center">
{feedbackEnabled && <span className="mr-2"><CorrectnessFeedback runId={runId} onError={props.onError}></CorrectnessFeedback></span>}
{publicTraceLinksEnabled && <>
<button
className="bg-button-inline p-2 rounded-lg text-xs font-medium hover:opacity-80"
disabled={messageActionIsLoading || isLoading}
onMouseUp={openPublicTrace}
>
🛠 View LangSmith trace
</button>
</>}
</div>
)}
</div>
)
};
@@ -0,0 +1,169 @@
import { useState, useRef } from "react";
import { ToastContainer, toast } from 'react-toastify';
import 'react-toastify/dist/ReactToastify.css';
import { AutosizeTextarea } from "./AutosizeTextarea";
import {
ChatMessage,
type ChatMessageType,
} from "./ChatMessage";
import { ShareDialog } from "./ShareDialog";
import { useStreamCallback } from "../useStreamCallback";
import ArrowUp from "../assets/ArrowUp.svg?react";
import CircleSpinIcon from "../assets/CircleSpinIcon.svg?react";
import EmptyState from "../assets/EmptyState.svg?react";
import LangServeLogo from "../assets/LangServeLogo.svg?react";
import { useFeedback, usePublicTraceLink } from "../useSchemas";
export type AIMessage = {
content: string;
type: "AIMessage" | "AIMessageChunk";
name?: string;
additional_kwargs?: { [key: string]: unknown };
}
export function isAIMessage(x: unknown): x is AIMessage {
return x != null &&
typeof (x as AIMessage).content === "string" &&
["AIMessageChunk", "AIMessage"].includes((x as AIMessage).type);
}
export function ChatWindow(props: {
startStream: (input: unknown, config: unknown) => Promise<void>;
stopStream: (() => void) | undefined;
inputKey: string;
}) {
const { startStream, inputKey } = props;
const [currentInputValue, setCurrentInputValue] = useState("");
const [isLoading, setIsLoading] = useState(false);
const [messages, setMessages] = useState<ChatMessageType[]>([]);
const messageInputRef = useRef<HTMLTextAreaElement>(null);
const feedbackEnabled = useFeedback()
const publicTraceLinksEnabled = usePublicTraceLink();
const submitMessage = () => {
const submittedValue = currentInputValue;
if (submittedValue.length === 0 || isLoading) {
return;
}
setIsLoading(true);
const newMessages = [
...messages,
{ role: "human", content: submittedValue } as const
];
setMessages(newMessages);
setCurrentInputValue("");
// TODO: Add config schema support
startStream({ [inputKey]: newMessages }, {});
};
useStreamCallback("onStart", () => {
setMessages((prevMessages) => [
...prevMessages,
{ role: "ai", content: "" },
]);
});
useStreamCallback("onChunk", (_chunk, aggregatedState) => {
const finalOutput = aggregatedState?.final_output;
if (typeof finalOutput === "string") {
setMessages((prevMessages) => [
...prevMessages.slice(0, -1),
{ role: "ai", content: finalOutput, runId: aggregatedState?.id }
]);
} else if (isAIMessage(finalOutput)) {
setMessages((prevMessages) => [
...prevMessages.slice(0, -1),
{ role: "ai", content: finalOutput.content, runId: aggregatedState?.id }
]);
}
});
useStreamCallback("onSuccess", () => {
setIsLoading(false);
});
useStreamCallback("onError", (e) => {
setIsLoading(false);
toast(e.message, { hideProgressBar: true });
setCurrentInputValue(messages[messages.length - 2]?.content);
setMessages((prevMessages) => [
...prevMessages.slice(0, -2),
]);
});
return (
<div className="flex flex-col h-screen w-screen">
<nav className="flex items-center justify-between p-8">
<div className="flex items-center">
<LangServeLogo />
<span className="ml-1">Playground</span>
</div>
<div className="flex items-center space-x-4">
<ShareDialog config={{}}>
<button
type="button"
className="px-3 py-1 border rounded-full px-8 py-2 share-button"
>
<span>Share</span>
</button>
</ShareDialog>
</div>
</nav>
<div className="flex-grow flex flex-col items-center justify-center mt-8">
{messages.length > 0 ? (
<div className="flex flex-col-reverse basis-0 overflow-auto flex-re grow max-w-[640px] w-[640px]">
{messages.map((message, i) => {
return (
<ChatMessage
message={message}
key={i}
isLoading={isLoading}
onError={(e: any) => toast(e.message, { hideProgressBar: true })}
feedbackEnabled={feedbackEnabled.data}
publicTraceLinksEnabled={publicTraceLinksEnabled.data}
></ChatMessage>
);
}).reverse()}
</div>
) : (
<div className="flex flex-col items-center justify-center">
<EmptyState />
<h1 className="text-lg">Start testing your application</h1>
</div>
)}
</div>
<div className="m-16 mt-4 flex justify-center">
<div className="flex items-center p-3 rounded-[48px] border shadow-sm max-w-[768px] grow" onClick={() => messageInputRef.current?.focus()}>
<AutosizeTextarea
inputRef={messageInputRef}
className="flex-grow mr-4 ml-8 border-none focus:ring-0 py-2 cursor-text"
placeholder="Send a message..."
value={currentInputValue}
onChange={(newValue) => {
setCurrentInputValue(newValue);
}}
onKeyDown={(e) => {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault();
submitMessage();
}
}}
/>
<button
className={"flex items-center justify-center px-3 py-1 rounded-[40px] " + (isLoading ? "" : currentInputValue.length > 0 ? "bg-button-green" : "bg-button-green-disabled")}
onClick={(e) => {
e.preventDefault();
submitMessage();
}}
>
{isLoading
? <CircleSpinIcon className="animate-spin w-5 h-5 text-background fill-background" />
: <ArrowUp className="mx-2 my-2 h-5 w-5 stroke-white" />}
</button>
</div>
</div>
<ToastContainer />
</div>
)
}
@@ -0,0 +1,141 @@
import { Drawer } from "vaul";
import { ReactNode, useEffect, useMemo, useRef, useState } from "react";
import CheckCircleIcon from "../assets/CheckCircleIcon.svg?react";
import CodeIcon from "../assets/CodeIcon.svg?react";
import CopyIcon from "../assets/CopyIcon.svg?react";
import PadlockIcon from "../assets/PadlockIcon.svg?react";
import ShareIcon from "../assets/ShareIcon.svg?react";
import { compressToEncodedURIComponent } from "lz-string";
import { getStateFromUrl } from "../utils/url";
const URL_LENGTH_LIMIT = 2000;
function CopyButton(props: { value: string }) {
const [copied, setCopied] = useState(false);
const cbRef = useRef<number | null>(null);
function toggleCopied() {
setCopied(true);
if (cbRef.current != null) window.clearTimeout(cbRef.current);
cbRef.current = window.setTimeout(() => setCopied(false), 1500);
}
useEffect(() => {
return () => {
if (cbRef.current != null) {
window.clearTimeout(cbRef.current);
}
};
}, []);
return (
<button
className="px-3 py-1"
onClick={() => {
navigator.clipboard.writeText(props.value).then(toggleCopied);
}}
>
{copied ? <CheckCircleIcon /> : <CopyIcon />}
</button>
);
}
export function ShareDialog(props: { config: unknown; children: ReactNode }) {
const hash = useMemo(() => {
return compressToEncodedURIComponent(JSON.stringify(props.config));
}, [props.config]);
const state = getStateFromUrl(window.location.href);
// get base URL
const targetUrl = `${state.basePath}/c/${hash}`;
// .../c/[hash]/chat_playground
const playgroundUrl = `${targetUrl}/chat_playground`;
// cURL, JS: .../c/[hash]/invoke
// Python: .../c/[hash]
const invokeUrl = `${targetUrl}/invoke`;
const pythonSnippet = `
from langserve import RemoteRunnable
chain = RemoteRunnable("${targetUrl}")
chain.invoke({ ... })
`;
const typescriptSnippet = `
import { RemoteRunnable } from "langchain/runnables/remote";
const chain = new RemoteRunnable({ url: \`${invokeUrl}\` });
const result = await chain.invoke({ ... });
`;
return (
<Drawer.Root>
<Drawer.Trigger asChild>{props.children}</Drawer.Trigger>
<Drawer.Portal>
<Drawer.Overlay className="fixed inset-0 bg-black/40" />
<Drawer.Content className="flex justify-center items-center mt-24 fixed bottom-0 left-0 right-0 !pointer-events-none after:!bg-background">
<div className="p-4 bg-background max-w-[calc(800px-2rem)] rounded-t-2xl border border-divider-500 border-b-background pointer-events-auto">
<h3 className="flex items-center text-lg font-light">
<ShareIcon className="flex-shrink-0 mr-2" />
<span>Share</span>
</h3>
<hr className="border-divider-500 my-4 -mx-4" />
<div className="flex flex-col gap-3">
{playgroundUrl.length < URL_LENGTH_LIMIT && (
<div className="flex flex-col gap-2 p-3 rounded-2xl">
<div className="flex items-center">
<div className="w-10 h-10 flex items-center justify-center text-center text-sm bg-background rounded-xl">
🦜
</div>
<span>Chat interface</span>
</div>
<div className="grid grid-cols-[auto,1fr,auto] rounded-xl text-sm items-center border">
<PadlockIcon className="mx-3" />
<div className="overflow-auto whitespace-nowrap py-3 no-scrollbar">
{playgroundUrl.split("://")[1]}
</div>
<CopyButton value={playgroundUrl} />
</div>
</div>
)}
<div className="flex flex-col gap-2 p-3 rounded-2xl">
<div className="flex items-center">
<div className="w-10 h-10 flex items-center justify-center text-center text-sm bg-background rounded-xl">
<CodeIcon className="w-4 h-4" />
</div>
<span>Get the code</span>
</div>
{targetUrl.length < URL_LENGTH_LIMIT && (
<div className="grid grid-cols-[1fr,auto] rounded-xl text-sm items-center border">
<div className="overflow-auto whitespace-nowrap px-3 py-3 no-scrollbar">
Python SDK
</div>
<CopyButton value={pythonSnippet.trim()} />
</div>
)}
{invokeUrl.length < URL_LENGTH_LIMIT && (
<div className="grid grid-cols-[1fr,auto] rounded-xl text-sm items-center border">
<div className="overflow-auto whitespace-nowrap px-3 py-3 no-scrollbar">
TypeScript SDK
</div>
<CopyButton value={typescriptSnippet.trim()} />
</div>
)}
</div>
</div>
</div>
</Drawer.Content>
</Drawer.Portal>
</Drawer.Root>
);
}
@@ -0,0 +1,102 @@
import { toast } from "react-toastify";
import ThumbsUpIcon from "../../assets/ThumbsUpIcon.svg?react";
import ThumbsDownIcon from "../../assets/ThumbsDownIcon.svg?react";
import CircleSpinIcon from "../../assets/CircleSpinIcon.svg?react";
import CheckCircleIcon2 from "../../assets/CheckCircleIcon2.svg?react";
import XCircle from "../../assets/XCircle.svg?react";
import { resolveApiUrl } from "../../utils/url";
import { useState } from "react";
import useSWRMutation from "swr/mutation";
const useFeedbackMutation = (runId: string, onError?: (e: any) => void) => {
interface FeedbackArguments {
key: string;
score: number;
}
const [lastArg, setLastArg] = useState<FeedbackArguments | null>(null);
const mutation = useSWRMutation(
["feedback", runId],
async ([, runId], { arg }: { arg: FeedbackArguments }) => {
const payload = { run_id: runId, key: arg.key, score: arg.score };
setLastArg(arg);
const request = await fetch(resolveApiUrl("/feedback"), {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify(payload),
});
if (!request.ok) {
if (request.status === 404) {
onError?.(new Error(`Feedback endpoint not found. Please enable it in your LangServe endpoint.`));
} else {
try {
const errorResponse = await request.json();
onError?.(new Error(`${errorResponse.detail}`));
} catch (e) {
onError?.(new Error(`Request failed with status: ${request.status}`));
}
}
throw new Error(`Failed request ${request.status}`)
}
const json: {
id: string;
score: number;
} = await request.json();
toast("Feedback sent successfully!", { hideProgressBar: true });
return json;
}
);
return { lastArg: mutation.isMutating ? lastArg : null, mutation };
};
export function CorrectnessFeedback(props: { runId: string, onError?: (e: any) => void }) {
const score = useFeedbackMutation(props.runId, props.onError);
if (props.runId == null) return null;
return (
<>
<button
type="button"
className={"bg-background rounded p-1 hover:opacity-80"}
disabled={score.mutation.isMutating}
onClick={() => {
if (score.mutation.data?.score !== 1) {
score.mutation.trigger({ key: "correctness", score: 1 });
}
}}
>
{score.lastArg?.score === 1 ? (
<CircleSpinIcon className="animate-spin w-4 h-4 text-white/50 fill-white" />
) : (
(score.mutation.data?.score !== 1
? <ThumbsUpIcon className="w-4 h-4" />
: <CheckCircleIcon2 className="w-4 h-4 stroke-teal-500" />)
)}
</button>
<button
type="button"
className={"bg-background rounded p-1 hover:opacity-80"}
disabled={score.mutation.isMutating}
onClick={() => {
if (score.mutation.data?.score !== 0) {
score.mutation.trigger({ key: "correctness", score: 0 });
}
}}
>
{score.lastArg?.score === 0 ? (
<CircleSpinIcon className="animate-spin w-4 h-4 text-white/50 fill-white" />
) : (
(score.mutation.data?.score !== 0
? <ThumbsDownIcon className="w-4 h-4" />
: <XCircle className="w-4 h-4 stroke-red-500" />)
)}
</button>
</>
);
}
+11
View File
@@ -0,0 +1,11 @@
import ReactDOM from "react-dom/client";
import App from "./App.tsx";
import dayjs from "dayjs";
import utc from "dayjs/plugin/utc";
import relativeDate from "dayjs/plugin/relativeTime";
dayjs.extend(relativeDate);
dayjs.extend(utc);
ReactDOM.createRoot(document.getElementById("root")!).render(<App />);
+9
View File
@@ -0,0 +1,9 @@
import type { Operation } from "fast-json-patch";
import type { RunState } from "./useStreamLog";
export interface StreamCallback {
onSuccess?: (ctx: { input: unknown; output: unknown }) => void;
onChunk?: (chunk: { ops?: Operation[] }, aggregatedState: RunState | null) => void;
onError?: (error: any) => void;
onStart?: (ctx: { input: unknown }) => void;
}
@@ -0,0 +1,98 @@
import { resolveApiUrl } from "./utils/url";
import { simplifySchema } from "./utils/simplifySchema";
import { JsonSchema } from "@jsonforms/core";
import { compressToEncodedURIComponent } from "lz-string";
import useSWR from "swr";
import defaults from "./utils/defaults";
declare global {
interface Window {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
CONFIG_SCHEMA?: any;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
INPUT_SCHEMA?: any;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
FEEDBACK_ENABLED?: any;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
PUBLIC_TRACE_LINK_ENABLED?: any;
}
}
export function useFeedback() {
return useSWR(["/feedback"], async () => {
if (!import.meta.env.DEV && window.FEEDBACK_ENABLED) {
return window.FEEDBACK_ENABLED === "true";
}
const response = await fetch(resolveApiUrl("/feedback"), {
method: "HEAD",
});
return response.ok;
});
}
export function usePublicTraceLink() {
return useSWR(["/public_trace_link"], async () => {
if (!import.meta.env.DEV && window.PUBLIC_TRACE_LINK_ENABLED) {
return window.PUBLIC_TRACE_LINK_ENABLED === "true";
}
const response = await fetch(resolveApiUrl("/public_trace_link"), {
method: "HEAD",
});
return response.ok;
});
}
export function useConfigSchema() {
return useSWR(["/config_schema"], async () => {
let schema: JsonSchema | null = null;
if (!import.meta.env.DEV && window.CONFIG_SCHEMA) {
schema = await simplifySchema(window.CONFIG_SCHEMA);
} else {
const response = await fetch(resolveApiUrl(`/config_schema`));
if (!response.ok) throw new Error(await response.text());
const json = await response.json();
schema = await simplifySchema(json);
}
if (schema == null) return null;
return {
schema,
defaults: defaults(schema),
};
});
}
export function useInputSchema(configData?: unknown) {
return useSWR(
["/input_schema", configData],
async ([, configData]) => {
// TODO: this won't work if we're already seeing a prefixed URL
const prefix = configData
? `/c/${compressToEncodedURIComponent(JSON.stringify(configData))}`
: "";
let schema: JsonSchema | null = null;
if (!prefix && !import.meta.env.DEV && window.INPUT_SCHEMA) {
schema = await simplifySchema(window.INPUT_SCHEMA);
} else {
const response = await fetch(resolveApiUrl(`${prefix}/input_schema`));
if (!response.ok) throw new Error(await response.text());
const json = await response.json();
schema = await simplifySchema(json);
}
if (schema == null) return null;
return {
schema,
defaults: defaults(schema),
};
},
{ keepPreviousData: true }
);
}
@@ -0,0 +1,78 @@
import {
MutableRefObject,
createContext,
useContext,
useEffect,
useRef,
} from "react";
import { StreamCallback } from "./types";
export const AppCallbackContext = createContext<MutableRefObject<{
onStart: Exclude<StreamCallback["onStart"], undefined>[];
onChunk: Exclude<StreamCallback["onChunk"], undefined>[];
onSuccess: Exclude<StreamCallback["onSuccess"], undefined>[];
onError: Exclude<StreamCallback["onError"], undefined>[];
}> | null>(null);
export function useAppStreamCallbacks() {
// callbacks handling
const context = useRef<{
onStart: Exclude<StreamCallback["onStart"], undefined>[];
onChunk: Exclude<StreamCallback["onChunk"], undefined>[];
onSuccess: Exclude<StreamCallback["onSuccess"], undefined>[];
onError: Exclude<StreamCallback["onError"], undefined>[];
}>({ onStart: [], onChunk: [], onSuccess: [], onError: [] });
const callbacks: StreamCallback = {
onStart(...args) {
for (const callback of context.current.onStart) {
callback(...args);
}
},
onChunk(...args) {
for (const callback of context.current.onChunk) {
callback(...args);
}
},
onSuccess(...args) {
for (const callback of context.current.onSuccess) {
callback(...args);
}
},
onError(...args) {
for (const callback of context.current.onError) {
callback(...args);
}
},
};
return { context, callbacks };
}
export function useStreamCallback<
Type extends "onStart" | "onChunk" | "onSuccess" | "onError"
>(type: Type, callback: Exclude<StreamCallback[Type], undefined>) {
type CallbackType = Exclude<StreamCallback[Type], undefined>;
const appCbRef = useContext(AppCallbackContext);
const callbackRef = useRef<CallbackType>(callback);
callbackRef.current = callback;
useEffect(() => {
// @ts-expect-error Not sure why I can't expand the tuple
const current = (...args) => callbackRef.current?.(...args);
appCbRef?.current[type].push(current);
return () => {
if (!appCbRef) return;
// @ts-expect-error Assingability issues due to the tuple object
// eslint-disable-next-line react-hooks/exhaustive-deps
appCbRef.current[type] = appCbRef.current[type].filter(
(callbacks) => callbacks !== current
);
};
}, [type, appCbRef]);
}
@@ -0,0 +1,106 @@
import { useCallback, useRef, useState } from "react";
import { applyPatch, Operation } from "fast-json-patch";
import { fetchEventSource } from "@microsoft/fetch-event-source";
import { resolveApiUrl } from "./utils/url";
import { StreamCallback } from "./types";
export interface LogEntry {
// ID of the sub-run.
id: string;
// Name of the object being run.
name: string;
// Type of the object being run, eg. prompt, chain, llm, etc.
type: string;
// List of tags for the run.
tags: string[];
// Key-value pairs of metadata for the run.
metadata: { [key: string]: unknown };
// ISO-8601 timestamp of when the run started.
start_time: string;
// List of LLM tokens streamed by this run, if applicable.
streamed_output_str: string[];
// Final output of this run.
// Only available after the run has finished successfully.
final_output?: unknown;
// ISO-8601 timestamp of when the run ended.
// Only available after the run has finished.
end_time?: string;
}
export interface RunState {
// ID of the run.
id: string;
// List of output chunks streamed by Runnable.stream()
streamed_output: unknown[];
// Final output of the run, usually the result of aggregating (`+`) streamed_output.
// Only available after the run has finished successfully.
final_output?: unknown;
// Map of run names to sub-runs. If filters were supplied, this list will
// contain only the runs that matched the filters.
logs: { [name: string]: LogEntry };
}
function reducer(state: RunState | null, action: Operation[]) {
return applyPatch(state, action, true, false).newDocument;
}
export function useStreamLog(callbacks: StreamCallback = {}) {
const [latest, setLatest] = useState<RunState | null>(null);
const [controller, setController] = useState<AbortController | null>(null);
const startRef = useRef(callbacks.onStart);
startRef.current = callbacks.onStart;
const chunkRef = useRef(callbacks.onChunk);
chunkRef.current = callbacks.onChunk;
const successRef = useRef(callbacks.onSuccess);
successRef.current = callbacks.onSuccess;
const errorRef = useRef(callbacks.onError);
errorRef.current = callbacks.onError;
const startStream = useCallback(async (input: unknown, config: unknown) => {
const controller = new AbortController();
setController(controller);
startRef.current?.({ input });
let innerLatest: RunState | null = null;
await fetchEventSource(resolveApiUrl("/stream_log").toString(), {
signal: controller.signal,
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ input, config }),
onmessage(msg) {
if (msg.event === "data") {
innerLatest = reducer(innerLatest, JSON.parse(msg.data)?.ops);
setLatest(innerLatest);
chunkRef.current?.(JSON.parse(msg.data), innerLatest);
}
},
openWhenHidden: true,
onclose() {
setController(null);
successRef.current?.({ input, output: innerLatest?.final_output });
},
onerror(error) {
setController(null);
errorRef.current?.(error);
throw error;
},
});
}, []);
const stopStream = useCallback(() => {
controller?.abort();
setController(null);
}, [controller]);
return {
startStream,
stopStream: controller ? stopStream : undefined,
latest,
};
}
@@ -0,0 +1,7 @@
import clsx from "clsx";
import { ClassValue } from "clsx";
import { twMerge } from "tailwind-merge";
export function cn(...inputs: ClassValue[]) {
return twMerge(clsx(inputs));
}
@@ -0,0 +1,220 @@
// (c) 2015 Chute Corporation. Released under the terms of the MIT License.
// Modified to use TypeScript and handle edge cases with tuples
/* eslint-disable @typescript-eslint/no-explicit-any */
/* eslint-disable no-prototype-builtins */
"use strict";
/**
* check whether item is plain object
* @param {*} item
* @return {Boolean}
*/
const isObject = (item: unknown): item is Record<string, unknown> => {
return (
typeof item === "object" &&
item !== null &&
item.toString() === {}.toString()
);
};
/**
* deep JSON object clone
*
* @param {Object} source
* @return {Object}
*/
const cloneJSON = (source: any): any => {
return JSON.parse(JSON.stringify(source));
};
/**
* returns a result of deep merge of two objects
*
* @param {Object} target
* @param {Object} source
* @return {Object}
*/
const merge = (
target: Record<string, unknown>,
source: Record<string, unknown>
) => {
target = cloneJSON(target);
for (const key in source) {
if (source.hasOwnProperty(key)) {
const sourceKeyValue = source[key];
const targetKeyValue = target[key];
if (isObject(sourceKeyValue) && isObject(targetKeyValue)) {
target[key] = merge(targetKeyValue, sourceKeyValue);
} else {
target[key] = sourceKeyValue;
}
}
}
return target;
};
/**
* get object by reference. works only with local references that points on
* definitions object
*
* @param {String} path
* @param {Object} definitions
* @return {Object}
*/
const getLocalRef = function (
inputPath: string,
definitions: Record<string, unknown>
) {
const path = inputPath.replace(/^#\/definitions\//, "").split("/");
const find = function (path: string[], root: any): any {
const key = path.shift();
if (!key) return {};
if (!root[key]) {
return {};
} else if (!path.length) {
return root[key];
} else {
return find(path, root[key]);
}
};
const result = find(path, definitions);
if (!isObject(result)) {
return result;
}
return cloneJSON(result);
};
/**
* merge list of objects from allOf properties
* if some of objects contains $ref field extracts this reference and merge it
*
* @param {Array} allOfList
* @param {Object} definitions
* @return {Object}
*/
const mergeAllOf = function (allOfList: any[], definitions: any) {
const length = allOfList.length;
let index = -1,
result = {};
while (++index < length) {
let item = allOfList[index];
item =
typeof item.$ref !== "undefined"
? getLocalRef(item.$ref, definitions)
: item;
result = merge(result, item);
}
return result;
};
/**
* returns a object that built with default values from json schema
*
* @param {Object} schema
* @param {Object} definitions
* @return {Object}
*/
const defaults = (schema: any, definitions: Record<string, any>): unknown => {
if (typeof schema["default"] !== "undefined") {
return schema["default"];
} else if (typeof schema.allOf !== "undefined") {
const mergedItem = mergeAllOf(schema.allOf, definitions);
return defaults(mergedItem, definitions);
} else if (typeof schema.$ref !== "undefined") {
const reference = getLocalRef(schema.$ref, definitions);
return defaults(reference, definitions);
} else if (schema.type === "object") {
if (!schema.properties) {
return {};
}
for (const key in schema.properties) {
if (schema.properties.hasOwnProperty(key)) {
schema.properties[key] = defaults(schema.properties[key], definitions);
if (typeof schema.properties[key] === "undefined") {
delete schema.properties[key];
}
}
}
return schema.properties;
} else if (schema.type === "array") {
if (!schema.items) {
return [];
}
// minimum item count
const ct = schema.minItems || 0;
// tuple-typed arrays
if (schema.items.constructor === Array) {
const values = schema.items.map((item: unknown) =>
defaults(item, definitions)
);
// remove undefined items at the end (unless required by minItems)
for (let i = values.length - 1; i >= 0; i--) {
if (typeof values[i] !== "undefined") {
break;
}
if (i + 1 > ct) {
values.pop();
}
}
// if all values are undefined -> return undefined even
// if minItems is set
if (values.every((item: unknown) => typeof item === "undefined")) {
return undefined;
}
return values;
}
// object-typed arrays
const value = defaults(schema.items, definitions);
if (typeof value === "undefined") {
return [];
} else {
const values = [];
for (let i = 0; i < Math.max(0, ct); i++) {
values.push(cloneJSON(value));
}
return values;
}
}
};
/**
* main function
*
* @param {Object} schema
* @param {Object|undefined} definitions
* @return {Object}
*/
export default function (
schema: any,
definitions?: Record<string, unknown> | undefined
) {
if (typeof definitions === "undefined") {
definitions = (schema.definitions as Record<string, unknown>) || {};
} else if (isObject(schema.definitions)) {
definitions = merge(definitions, schema.definitions);
}
return defaults(cloneJSON(schema), definitions);
}
+4
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@@ -0,0 +1,4 @@
/* eslint-disable @typescript-eslint/no-explicit-any */
export const JsonRefs: {
resolveRefs(schema: any): Promise<{ resolved: any }>;
};
File diff suppressed because it is too large Load Diff
@@ -0,0 +1,7 @@
export function getMessageContent(x: unknown) {
if (typeof x === "string") return x;
if (typeof x === "object" && x != null) {
if ("content" in x && typeof x.content === "string") return x.content;
}
return null;
}
@@ -0,0 +1,31 @@
function isAccessibleObject(x: unknown): x is Record<string | number, unknown> {
return typeof x === "object" && x != null;
}
export function getNormalizedJsonPath(
path: string | number | Array<string | number>
) {
return Array.isArray(path) ? path : [path];
}
export function traverseNaiveJsonPath(
x: unknown,
path: string | number | Array<string | number>
) {
const queue = getNormalizedJsonPath(path);
let tmp: unknown = x;
while (queue.length > 0) {
const first = queue.shift()!;
if (first === "") continue;
if (Array.isArray(tmp)) {
tmp = tmp[+first];
} else if (isAccessibleObject(tmp)) {
tmp = tmp[first];
} else {
return undefined;
}
}
return tmp;
}
@@ -0,0 +1,28 @@
import { JsonSchema } from "@jsonforms/core";
type JsonSchemaExtra = JsonSchema & {
extra: {
widget: {
type: string;
[key: string]: string | number | Array<string | number>;
};
};
};
export function isJsonSchemaExtra(x: JsonSchema): x is JsonSchemaExtra {
if (!("extra" in x && typeof x.extra === "object" && x.extra != null)) {
return false;
}
if (
!(
"widget" in x.extra &&
typeof x.extra.widget === "object" &&
x.extra.widget != null
)
) {
return false;
}
return true;
}
@@ -0,0 +1,8 @@
/* eslint-disable @typescript-eslint/no-explicit-any */
import { JsonRefs } from "./json-refs";
// jsonforms doesn't support schemas with root $ref
// so we resolve root $ref and replace it with the actual schema
export function simplifySchema(schema: any) {
return JsonRefs.resolveRefs(schema).then((r: any) => r.resolved);
}
@@ -0,0 +1,5 @@
export function str(o: unknown): React.ReactNode {
return typeof o === "object"
? JSON.stringify(o, null, 2)
: (o as React.ReactNode);
}
@@ -0,0 +1,33 @@
import { decompressFromEncodedURIComponent } from "lz-string";
export function getStateFromUrl(path: string) {
let configFromUrl = null;
let basePath = path;
if (basePath.endsWith("/")) {
basePath = basePath.slice(0, -1);
}
if (basePath.endsWith("/chat_playground")) {
basePath = basePath.slice(0, -"/chat_playground".length);
}
// check if we can omit the last segment
const [configHash, c, ...rest] = basePath.split("/").reverse();
if (c === "c") {
basePath = rest.reverse().join("/");
try {
configFromUrl = JSON.parse(decompressFromEncodedURIComponent(configHash));
} catch (error) {
console.error(error);
}
}
return { basePath, configFromUrl };
}
export function resolveApiUrl(path: string) {
const { basePath } = getStateFromUrl(window.location.href);
let prefix = new URL(basePath).pathname;
if (prefix.endsWith("/")) prefix = prefix.slice(0, -1);
return new URL(prefix + path, basePath);
}
+2
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@@ -0,0 +1,2 @@
/// <reference types="vite/client" />
/// <reference types="vite-plugin-svgr/client" />
@@ -0,0 +1,36 @@
/** @type {import('tailwindcss').Config} */
export default {
content: ["./index.html", "./src/**/*.{js,ts,jsx,tsx}"],
theme: {
extend: {
colors: {
popover: {
DEFAULT: "hsl(var(--popover))",
},
background: {
DEFAULT: "var(--background)",
},
button: {
"green": "var(--button-green)",
"green-disabled": "var(--button-green-disabled)",
"inline": "var(--button-inline)"
},
ls: {
blue: "hsl(211.5, 91.8%, 61.8%)",
black: "hsl(var(--ls-black))",
gray: {
100: "hsl(var(--ls-gray-100))",
200: "hsl(var(--ls-gray-200))",
300: "hsl(var(--ls-gray-300))",
400: "hsl(var(--ls-gray-400))",
},
},
divider: {
500: "hsl(var(--divider-500))",
700: "hsl(var(--divider-700))",
},
},
},
},
plugins: [],
};
+25
View File
@@ -0,0 +1,25 @@
{
"compilerOptions": {
"target": "ES2020",
"useDefineForClassFields": true,
"lib": ["ES2020", "DOM", "DOM.Iterable"],
"module": "ESNext",
"skipLibCheck": true,
/* Bundler mode */
"moduleResolution": "bundler",
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
"noEmit": true,
"jsx": "react-jsx",
/* Linting */
"strict": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"noFallthroughCasesInSwitch": true
},
"include": ["src"],
"references": [{ "path": "./tsconfig.node.json" }]
}
@@ -0,0 +1,10 @@
{
"compilerOptions": {
"composite": true,
"skipLibCheck": true,
"module": "ESNext",
"moduleResolution": "bundler",
"allowSyntheticDefaultImports": true
},
"include": ["vite.config.ts"]
}
+18
View File
@@ -0,0 +1,18 @@
import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";
import svgr from "vite-plugin-svgr";
// https://vitejs.dev/config/
export default defineConfig({
base: "/____LANGSERVE_BASE_URL/",
plugins: [svgr(), react()],
server: {
proxy: {
"^/____LANGSERVE_BASE_URL.*/(config_schema|input_schema|stream_log|feedback|public_trace_link)(/[a-zA-Z0-9-]*)?$": {
target: "http://127.0.0.1:8000",
changeOrigin: true,
rewrite: (path) => path.replace("/____LANGSERVE_BASE_URL", ""),
},
},
},
});
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+26 -4
View File
@@ -112,6 +112,7 @@ EndpointName = Literal[
"stream_log",
"stream_events",
"playground",
"chat_playground",
"feedback",
"public_trace_link",
"input_schema",
@@ -129,6 +130,7 @@ KNOWN_ENDPOINTS = {
"stream_log",
"stream_events",
"playground",
"chat_playground",
"feedback",
"public_trace_link",
"input_schema",
@@ -177,6 +179,7 @@ class _EndpointConfiguration:
is_stream_log_enabled = True
is_stream_events_enabled = True
is_playground_enabled = True
is_chat_playground_enabled = True
is_input_schema_enabled = True
is_output_schema_enabled = True
is_config_schema_enabled = True
@@ -194,6 +197,9 @@ class _EndpointConfiguration:
is_stream_log_enabled = "stream_log" not in disabled_endpoints_
is_stream_events_enabled = "stream_events" not in disabled_endpoints_
is_playground_enabled = "playground" not in disabled_endpoints_
is_chat_playground_enabled = (
"chat_playground" not in disabled_endpoints_
)
is_input_schema_enabled = "input_schema" not in disabled_endpoints_
is_output_schema_enabled = "output_schema" not in disabled_endpoints_
is_config_schema_enabled = "config_schema" not in disabled_endpoints_
@@ -210,6 +216,7 @@ class _EndpointConfiguration:
is_stream_log_enabled = "stream_log" in enabled_endpoints_
is_stream_events_enabled = "stream_events" in enabled_endpoints_
is_playground_enabled = "playground" in enabled_endpoints_
is_chat_playground_enabled = "chat_playground" in enabled_endpoints_
is_input_schema_enabled = "input_schema" in enabled_endpoints_
is_output_schema_enabled = "output_schema" in enabled_endpoints_
is_config_schema_enabled = "config_schema" in enabled_endpoints_
@@ -221,6 +228,7 @@ class _EndpointConfiguration:
self.is_stream_log_enabled = is_stream_log_enabled
self.is_stream_events_enabled = is_stream_events_enabled
self.is_playground_enabled = is_playground_enabled
self.is_chat_playground_enabled = is_chat_playground_enabled
self.is_input_schema_enabled = is_input_schema_enabled
self.is_output_schema_enabled = is_output_schema_enabled
self.is_config_schema_enabled = is_config_schema_enabled
@@ -305,8 +313,8 @@ def add_routes(
enabled_endpoints: A list of endpoints which should be enabled. If not
specified, all associated endpoints will be enabled. The list can contain
the following values: *invoke*, *batch*, *stream*, *stream_log*,
*playground*, *input_schema*, *output_schema*, *config_schema*,
*config_hashes*.
*playground*, *chat_playground*, *input_schema*, *output_schema*,
*config_schema*, *config_hashes*.
*config_hashes* represents the config hash variant (when it exists)
of each endpoint. Enabling this is useful when working with configurable
@@ -329,8 +337,8 @@ def add_routes(
disabled_endpoints: A list of endpoints which should be disabled. If not
specified, all associated endpoints will be enabled. The list can contain
the following values: *invoke*, *batch*, *stream*, *stream_log*,
*playground*, *input_schema*, *output_schema*, *config_schema*,
*config_hashes*.
*playground*, *chat_playground*, *input_schema*, *output_schema*,
*config_schema*, *config_hashes*.
*config_hashes* represents the config hash variant (when it exists)
of each endpoint. Enabling this is useful when working with configurable
@@ -694,6 +702,20 @@ def add_routes(
include_in_schema=False,
)(playground)
if endpoint_configuration.is_chat_playground_enabled:
chat_playground = app.get(
namespace + "/chat_playground/{file_path:path}",
dependencies=dependencies,
include_in_schema=False,
)(api_handler.chat_playground)
if endpoint_configuration.is_config_hash_enabled:
app.get(
namespace + "/c/{config_hash}/chat_playground/{file_path:path}",
dependencies=dependencies,
include_in_schema=False,
)(chat_playground)
if enable_feedback_endpoint:
app.post(
namespace + "/feedback",
+1 -2
View File
@@ -1,2 +1 @@
# LangServe Playground 🦜️🔗
# LangServe Playground 🦜️🏓