Initial commit

.gitignore

@@ -0,0 +1 @@
+node_modules

1_chain.ts

@@ -0,0 +1,42 @@
+import { createWorkflow } from "@llama-flow/core";
+import { workflowEvent } from "@llama-flow/core";
+import { pipeline } from "node:stream/promises";
+
+////////// define the workflow
+
+const startEvent = workflowEvent<string>();
+const secondEvent = workflowEvent<string>();
+const stopEvent = workflowEvent<string>();
+
+const workflow = createWorkflow();
+
+// handle the start event
+workflow.handle([startEvent], (start) => {
+    console.log(`Started the workflow with input: ${start.data}`);
+    return secondEvent.with(start.data);
+});
+
+// handle the second event
+workflow.handle([secondEvent], (second) => {
+    console.log(`Second event with input: ${second.data}`);
+    return stopEvent.with(second.data);
+});
+
+
+////////// run the workflow
+
+// Create a workflow context and send the initial event
+const { stream, sendEvent } = workflow.createContext();
+sendEvent(startEvent.with("I am some data"));
+
+// Process the stream to get the result
+const result = await pipeline(stream, async function (source) {
+    for await (const event of source) {
+        console.log(`Event: ${event.data}`);
+        if (stopEvent.include(event)) {
+            return `Result: ${event.data}`;
+        }
+    }
+});
+
+console.log(result)

2_route.ts

@@ -0,0 +1,60 @@
+import { createWorkflow } from "@llama-flow/core";
+import { workflowEvent } from "@llama-flow/core";
+import { pipeline } from "node:stream/promises";
+
+////////// define the workflow
+
+const startEvent = workflowEvent<string>();
+const branchA1Event = workflowEvent<string>();
+const branchA2Event = workflowEvent<string>();
+const branchB1Event = workflowEvent<string>();
+const branchB2Event = workflowEvent<string>();
+const stopEvent = workflowEvent<string>();
+
+const workflow = createWorkflow();
+
+// handle the start event
+workflow.handle([startEvent], (start) => {
+  // Randomly choose between branch A and B
+  if (Math.random() < 0.5) {
+    return branchA1Event.with("Chose branch A");
+  } else {
+    return branchB1Event.with("Chose branch B");
+  }
+});
+
+// handle branch A
+workflow.handle([branchA1Event], (branchA1) => {
+  return branchA2Event.with(branchA1.data);
+});
+
+workflow.handle([branchA2Event], (branchA2) => {
+  return stopEvent.with(branchA2.data);
+});
+
+// handle branch B
+workflow.handle([branchB1Event], (branchB1) => {
+  return branchB2Event.with(branchB1.data);
+});
+
+workflow.handle([branchB2Event], (branchB2) => {
+  return stopEvent.with(branchB2.data);
+});
+
+////////// run the workflow
+
+// Create a workflow context and send the initial event
+const { stream, sendEvent } = workflow.createContext();
+sendEvent(startEvent.with("I am some data"));
+
+// Process the stream to get the result
+const result = await pipeline(stream, async function (source) {
+  for await (const event of source) {
+    console.log(`Event: ${event.data}`);
+    if (stopEvent.include(event)) {
+      return `Result: ${event.data}`;
+    }
+  }
+});
+
+console.log(result)

3_sectioning.ts

@@ -0,0 +1,85 @@
+import { createWorkflow, workflowEvent, getContext } from "@llama-flow/core";
+import { until } from "@llama-flow/core/stream/until";
+import { collect } from "@llama-flow/core/stream/consumer";
+import { filter } from "@llama-flow/core/stream/filter";
+import { pipeline } from "node:stream/promises";
+
+////////// define the workflow
+
+const startEvent = workflowEvent<string>();
+const branchAEvent = workflowEvent<string>({
+  type: "branchA"
+});
+const branchBEvent = workflowEvent<string>({
+  type: "branchB"
+});
+const branchCEvent = workflowEvent<string>({
+  type: "branchC"
+});
+const branchCompleteEvent = workflowEvent<string>();
+const allCompleteEvent = workflowEvent<string>();
+const stopEvent = workflowEvent<string>();
+
+const workflow = createWorkflow();
+
+// handle the start event
+workflow.handle([startEvent], async (start) => {
+  // emit 3 different events, handled separately
+  const { sendEvent, stream } = getContext();
+  sendEvent(branchAEvent.with("Branch A"));
+  sendEvent(branchBEvent.with("Branch B"));
+  sendEvent(branchCEvent.with("Branch C"));
+
+  let condition = 0;
+  const results = await collect(
+    until(
+      filter(stream, (ev) => branchCompleteEvent.include(ev)),
+      () => {
+        condition++;
+        return condition === 3;
+      },
+    ),
+  );
+
+  console.log(`All branches completed`);
+  console.log(results)
+  return allCompleteEvent.with(results.join(", "));
+});
+
+// handle branch A
+workflow.handle([branchAEvent], (branchA) => {
+  return branchCompleteEvent.with(branchA.data);
+});
+
+// handle branch B
+workflow.handle([branchBEvent], (branchB) => {
+  return branchCompleteEvent.with(branchB.data);
+});
+
+// handle branch C
+workflow.handle([branchCEvent], (branchC) => {
+  return branchCompleteEvent.with(branchC.data);
+});
+
+// handle the collected results
+workflow.handle([allCompleteEvent], (allComplete) => {
+  return stopEvent.with(allComplete.data);
+});
+
+////////// run the workflow
+
+// Create a workflow context and send the initial event
+const { stream, sendEvent } = workflow.createContext();
+sendEvent(startEvent.with("I am some data"));
+
+// Process the stream to get the result
+const result = await pipeline(stream, async function (source) {
+  for await (const event of source) {
+    console.log(`Event: ${event.data}`);
+    if (stopEvent.include(event)) {
+      return `Result: ${event.data}`;
+    }
+  }
+});
+
+console.log(result)

4_voting.ts

@@ -0,0 +1,78 @@
+import { createWorkflow, workflowEvent, getContext } from "@llama-flow/core";
+import { until } from "@llama-flow/core/stream/until";
+import { collect } from "@llama-flow/core/stream/consumer";
+import { filter } from "@llama-flow/core/stream/filter";
+import { pipeline } from "node:stream/promises";
+
+////////// define the workflow
+
+const startEvent = workflowEvent<string>();
+const workEvent = workflowEvent<string>();
+const workCompleteEvent = workflowEvent<string>();
+const allCompleteEvent = workflowEvent<string>();
+const stopEvent = workflowEvent<string>();
+
+const workflow = createWorkflow();
+
+// handle the start event
+workflow.handle([startEvent], async (start) => {
+  // emit 10 identical events
+  const { sendEvent, stream } = getContext();
+  const totalEvents = 10
+  for (let i = 0; i < totalEvents; i++) {
+    sendEvent(workEvent.with(`Event ${i}`));
+  }
+
+  let completedEvents = 0;
+  const results = await collect(
+    until(
+      filter(stream, (ev) => workCompleteEvent.include(ev)),
+      () => {
+        completedEvents++;
+        return completedEvents === totalEvents;
+      },
+    ),
+  );
+
+  // return results of work
+  return allCompleteEvent.with(results);
+});
+
+// handle the work event
+workflow.handle([workEvent], (work) => {
+  if (Math.random() < 0.5) {
+    return workCompleteEvent.with(true);
+  } else {
+    return workCompleteEvent.with(false);
+  }
+});
+
+// handle the collected results
+workflow.handle([allCompleteEvent], (allComplete) => {
+
+  // count votes
+  const trueCount = allComplete.data.filter(r => r.data === true).length;
+  const falseCount = allComplete.data.filter(r => r.data === false).length;
+  const majorityResult = trueCount > falseCount;
+  console.log(`Vote result: ${majorityResult} (${trueCount} true vs ${falseCount} false)`); ``
+
+  return stopEvent.with(majorityResult);
+});
+
+////////// run the workflow
+
+// Create a workflow context and send the initial event
+const { stream, sendEvent } = workflow.createContext();
+sendEvent(startEvent.with("I am some data"));
+
+// Process the stream to get the result
+const result = await pipeline(stream, async function (source) {
+  for await (const event of source) {
+    console.log(`Event: ${event.data}`);
+    if (stopEvent.include(event)) {
+      return `Result: ${event.data}`;
+    }
+  }
+});
+
+console.log(result)

5_looping.ts

@@ -0,0 +1,63 @@
+import { createWorkflow, workflowEvent, getContext } from "@llama-flow/core";
+import { until } from "@llama-flow/core/stream/until";
+import { collect } from "@llama-flow/core/stream/consumer";
+import { filter } from "@llama-flow/core/stream/filter";
+import { pipeline } from "node:stream/promises";
+
+////////// define the workflow
+
+const startEvent = workflowEvent<string>();
+const stepAEvent = workflowEvent<string>();
+const stepBEvent = workflowEvent<string>();
+const stepCEvent = workflowEvent<string>();
+const loopEvent = workflowEvent<string>();
+const stopEvent = workflowEvent<string>();
+
+const workflow = createWorkflow();
+
+// handle the start event
+workflow.handle([startEvent], async (start) => {
+  console.log("Starting workflow, data is ", start.data)
+  start.data.counter++
+  return stepAEvent.with(start.data);
+});
+
+workflow.handle([stepAEvent], async (stepA) => {
+  console.log("Step A, data is ", stepA.data)
+  stepA.data.counter++
+  return stepBEvent.with(stepA.data);
+});
+
+workflow.handle([stepBEvent], async (stepB) => {
+  console.log("Step B, data is ", stepB.data)
+  stepB.data.counter++
+  return stepCEvent.with(stepB.data);
+});
+
+workflow.handle([stepCEvent], async (stepC) => {
+  console.log("Step C, data is ", stepC.data)
+  if (stepC.data.counter < 10) {
+    console.log("Need to loop")
+    return stepAEvent.with(stepC.data);
+  } else {
+    return stopEvent.with(stepC.data);
+  }
+});
+
+////////// run the workflow
+
+// Create a workflow context and send the initial event
+const { stream, sendEvent } = workflow.createContext();
+sendEvent(startEvent.with({ counter: 0 }));
+
+// Process the stream to get the result
+const result = await pipeline(stream, async function (source) {
+  for await (const event of source) {
+    console.log("Got a new event", event.data)
+    if (stopEvent.include(event)) {
+      return `Result: ${event.data.counter}`;
+    }
+  }
+});
+
+console.log(result)

6_browser/.gitignore

@@ -0,0 +1,41 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

6_browser/README.md

@@ -0,0 +1,36 @@
+This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+
+## 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) - 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_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.

6_browser/next.config.ts

@@ -0,0 +1,7 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  /* config options here */
+};
+
+export default nextConfig;

6_browser/package-lock.json

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+  "version": "0.1.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "6_browser",
+      "version": "0.1.0",
+      "dependencies": {
+        "@llama-flow/core": "^0.3.4",
+        "next": "15.3.1",
+        "react": "^19.0.0",
+        "react-dom": "^19.0.0"
+      },
+      "devDependencies": {
+        "@types/node": "^20",
+        "@types/react": "^19",
+        "@types/react-dom": "^19",
+        "typescript": "^5"
+      }
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+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
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+    },
+    "node_modules/undici-types": {
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+      "dev": true,
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+}

6_browser/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "6_browser",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@llama-flow/core": "^0.3.4",
+    "next": "15.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "typescript": "^5"
+  }
+}

6_browser/public/file.svg

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6_browser/public/globe.svg

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+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><g clip-path="url(#a)"><path fill-rule="evenodd" clip-rule="evenodd" d="M10.27 14.1a6.5 6.5 0 0 0 3.67-3.45q-1.24.21-2.7.34-.31 1.83-.97 3.1M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16m.48-1.52a7 7 0 0 1-.96 0H7.5a4 4 0 0 1-.84-1.32q-.38-.89-.63-2.08a40 40 0 0 0 3.92 0q-.25 1.2-.63 2.08a4 4 0 0 1-.84 1.31zm2.94-4.76q1.66-.15 2.95-.43a7 7 0 0 0 0-2.58q-1.3-.27-2.95-.43a18 18 0 0 1 0 3.44m-1.27-3.54a17 17 0 0 1 0 3.64 39 39 0 0 1-4.3 0 17 17 0 0 1 0-3.64 39 39 0 0 1 4.3 0m1.1-1.17q1.45.13 2.69.34a6.5 6.5 0 0 0-3.67-3.44q.65 1.26.98 3.1M8.48 1.5l.01.02q.41.37.84 1.31.38.89.63 2.08a40 40 0 0 0-3.92 0q.25-1.2.63-2.08a4 4 0 0 1 .85-1.32 7 7 0 0 1 .96 0m-2.75.4a6.5 6.5 0 0 0-3.67 3.44 29 29 0 0 1 2.7-.34q.31-1.83.97-3.1M4.58 6.28q-1.66.16-2.95.43a7 7 0 0 0 0 2.58q1.3.27 2.95.43a18 18 0 0 1 0-3.44m.17 4.71q-1.45-.12-2.69-.34a6.5 6.5 0 0 0 3.67 3.44q-.65-1.27-.98-3.1" fill="#666"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h16v16H0z"/></clipPath></defs></svg>

6_browser/public/next.svg

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6_browser/public/vercel.svg

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+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1155 1000"><path d="m577.3 0 577.4 1000H0z" fill="#fff"/></svg>

6_browser/public/window.svg

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+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" clip-rule="evenodd" d="M1.5 2.5h13v10a1 1 0 0 1-1 1h-11a1 1 0 0 1-1-1zM0 1h16v11.5a2.5 2.5 0 0 1-2.5 2.5h-11A2.5 2.5 0 0 1 0 12.5zm3.75 4.5a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5M7 4.75a.75.75 0 1 1-1.5 0 .75.75 0 0 1 1.5 0m1.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5" fill="#666"/></svg>

6_browser/src/app/globals.css

@@ -0,0 +1,42 @@
+:root {
+  --background: #ffffff;
+  --foreground: #171717;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --background: #0a0a0a;
+    --foreground: #ededed;
+  }
+}
+
+html,
+body {
+  max-width: 100vw;
+  overflow-x: hidden;
+}
+
+body {
+  color: var(--foreground);
+  background: var(--background);
+  font-family: Arial, Helvetica, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+* {
+  box-sizing: border-box;
+  padding: 0;
+  margin: 0;
+}
+
+a {
+  color: inherit;
+  text-decoration: none;
+}
+
+@media (prefers-color-scheme: dark) {
+  html {
+    color-scheme: dark;
+  }
+}

6_browser/src/app/layout.tsx

@@ -0,0 +1,32 @@
+import type { Metadata } from "next";
+import { Geist, Geist_Mono } from "next/font/google";
+import "./globals.css";
+
+const geistSans = Geist({
+  variable: "--font-geist-sans",
+  subsets: ["latin"],
+});
+
+const geistMono = Geist_Mono({
+  variable: "--font-geist-mono",
+  subsets: ["latin"],
+});
+
+export const metadata: Metadata = {
+  title: "Create Next App",
+  description: "Generated by create next app",
+};
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html lang="en">
+      <body className={`${geistSans.variable} ${geistMono.variable}`}>
+        {children}
+      </body>
+    </html>
+  );
+}

6_browser/src/app/page.module.css

@@ -0,0 +1,168 @@
+.page {
+  --gray-rgb: 0, 0, 0;
+  --gray-alpha-200: rgba(var(--gray-rgb), 0.08);
+  --gray-alpha-100: rgba(var(--gray-rgb), 0.05);
+
+  --button-primary-hover: #383838;
+  --button-secondary-hover: #f2f2f2;
+
+  display: grid;
+  grid-template-rows: 20px 1fr 20px;
+  align-items: center;
+  justify-items: center;
+  min-height: 100svh;
+  padding: 80px;
+  gap: 64px;
+  font-family: var(--font-geist-sans);
+}
+
+@media (prefers-color-scheme: dark) {
+  .page {
+    --gray-rgb: 255, 255, 255;
+    --gray-alpha-200: rgba(var(--gray-rgb), 0.145);
+    --gray-alpha-100: rgba(var(--gray-rgb), 0.06);
+
+    --button-primary-hover: #ccc;
+    --button-secondary-hover: #1a1a1a;
+  }
+}
+
+.main {
+  display: flex;
+  flex-direction: column;
+  gap: 32px;
+  grid-row-start: 2;
+}
+
+.main ol {
+  font-family: var(--font-geist-mono);
+  padding-left: 0;
+  margin: 0;
+  font-size: 14px;
+  line-height: 24px;
+  letter-spacing: -0.01em;
+  list-style-position: inside;
+}
+
+.main li:not(:last-of-type) {
+  margin-bottom: 8px;
+}
+
+.main code {
+  font-family: inherit;
+  background: var(--gray-alpha-100);
+  padding: 2px 4px;
+  border-radius: 4px;
+  font-weight: 600;
+}
+
+.ctas {
+  display: flex;
+  gap: 16px;
+}
+
+.ctas a {
+  appearance: none;
+  border-radius: 128px;
+  height: 48px;
+  padding: 0 20px;
+  border: none;
+  border: 1px solid transparent;
+  transition:
+    background 0.2s,
+    color 0.2s,
+    border-color 0.2s;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 16px;
+  line-height: 20px;
+  font-weight: 500;
+}
+
+a.primary {
+  background: var(--foreground);
+  color: var(--background);
+  gap: 8px;
+}
+
+a.secondary {
+  border-color: var(--gray-alpha-200);
+  min-width: 158px;
+}
+
+.footer {
+  grid-row-start: 3;
+  display: flex;
+  gap: 24px;
+}
+
+.footer a {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.footer img {
+  flex-shrink: 0;
+}
+
+/* Enable hover only on non-touch devices */
+@media (hover: hover) and (pointer: fine) {
+  a.primary:hover {
+    background: var(--button-primary-hover);
+    border-color: transparent;
+  }
+
+  a.secondary:hover {
+    background: var(--button-secondary-hover);
+    border-color: transparent;
+  }
+
+  .footer a:hover {
+    text-decoration: underline;
+    text-underline-offset: 4px;
+  }
+}
+
+@media (max-width: 600px) {
+  .page {
+    padding: 32px;
+    padding-bottom: 80px;
+  }
+
+  .main {
+    align-items: center;
+  }
+
+  .main ol {
+    text-align: center;
+  }
+
+  .ctas {
+    flex-direction: column;
+  }
+
+  .ctas a {
+    font-size: 14px;
+    height: 40px;
+    padding: 0 16px;
+  }
+
+  a.secondary {
+    min-width: auto;
+  }
+
+  .footer {
+    flex-wrap: wrap;
+    align-items: center;
+    justify-content: center;
+  }
+}
+
+@media (prefers-color-scheme: dark) {
+  .logo {
+    filter: invert();
+  }
+}

6_browser/src/app/page.tsx

@@ -0,0 +1,71 @@
+"use client";
+
+import { useEffect, useState } from 'react';
+import { createWorkflow, workflowEvent, getContext } from "@llama-flow/core";
+
+export default function Home() {
+
+  const [updates, setUpdates] = useState([]);
+  const [isComplete, setIsComplete] = useState(false);
+
+  useEffect(() => {
+    // Set up workflow
+    const startEvent = workflowEvent<void>();
+    const updateEvent = workflowEvent<string>();
+    const completeEvent = workflowEvent<void>();
+
+    const workflow = createWorkflow();
+
+    workflow.handle([startEvent], () => {
+      const { sendEvent } = getContext();
+
+      // Simulate async updates
+      const intervals = [
+        setTimeout(() => sendEvent(updateEvent.with("First update")), 500),
+        setTimeout(() => sendEvent(updateEvent.with("Second update")), 1000),
+        setTimeout(() => sendEvent(updateEvent.with("Final update")), 1500),
+        setTimeout(() => sendEvent(completeEvent.with()), 2000)
+      ];
+
+      // Cleanup function
+      getContext().signal.onabort = () => {
+        intervals.forEach(clearTimeout);
+      };
+    });
+
+    // Run the workflow
+    const { stream, sendEvent } = workflow.createContext();
+    sendEvent(startEvent.with());
+
+    // Process events
+    const processEvents = async () => {
+      for await (const event of stream) {
+        if (updateEvent.include(event)) {
+          setUpdates(prev => [...prev, event.data]);
+        } else if (completeEvent.include(event)) {
+          setIsComplete(true);
+          break;
+        }
+      }
+    };
+
+    processEvents();
+
+    // Cleanup
+    return () => {
+      // The workflow will be aborted when the component unmounts
+    };
+  }, []);
+
+  return (
+    <div>
+      <h2>Streaming Updates</h2>
+      <ul>
+        {updates.map((update, i) => (
+          <li key={i}>{update}</li>
+        ))}
+      </ul>
+      {isComplete && <div>Process complete!</div>}
+    </div>
+  );
+}

6_browser/tsconfig.json

@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    "target": "ES2017",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "exclude": ["node_modules"]
+}

7_server/.gitignore

@@ -0,0 +1,41 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

7_server/README.md

@@ -0,0 +1,36 @@
+This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+
+## 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) - 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_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.

7_server/next.config.ts

@@ -0,0 +1,7 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  /* config options here */
+};
+
+export default nextConfig;

7_server/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "7_server",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@llamaindex/anthropic": "^0.3.3",
+    "llamaindex": "^0.10.2",
+    "next": "15.3.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "typescript": "^5"
+  }
+}

7_server/public/file.svg

@@ -0,0 +1 @@
+<svg fill="none" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="M14.5 13.5V5.41a1 1 0 0 0-.3-.7L9.8.29A1 1 0 0 0 9.08 0H1.5v13.5A2.5 2.5 0 0 0 4 16h8a2.5 2.5 0 0 0 2.5-2.5m-1.5 0v-7H8v-5H3v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1M9.5 5V2.12L12.38 5zM5.13 5h-.62v1.25h2.12V5zm-.62 3h7.12v1.25H4.5zm.62 3h-.62v1.25h7.12V11z" clip-rule="evenodd" fill="#666" fill-rule="evenodd"/></svg>

7_server/public/globe.svg

@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><g clip-path="url(#a)"><path fill-rule="evenodd" clip-rule="evenodd" d="M10.27 14.1a6.5 6.5 0 0 0 3.67-3.45q-1.24.21-2.7.34-.31 1.83-.97 3.1M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16m.48-1.52a7 7 0 0 1-.96 0H7.5a4 4 0 0 1-.84-1.32q-.38-.89-.63-2.08a40 40 0 0 0 3.92 0q-.25 1.2-.63 2.08a4 4 0 0 1-.84 1.31zm2.94-4.76q1.66-.15 2.95-.43a7 7 0 0 0 0-2.58q-1.3-.27-2.95-.43a18 18 0 0 1 0 3.44m-1.27-3.54a17 17 0 0 1 0 3.64 39 39 0 0 1-4.3 0 17 17 0 0 1 0-3.64 39 39 0 0 1 4.3 0m1.1-1.17q1.45.13 2.69.34a6.5 6.5 0 0 0-3.67-3.44q.65 1.26.98 3.1M8.48 1.5l.01.02q.41.37.84 1.31.38.89.63 2.08a40 40 0 0 0-3.92 0q.25-1.2.63-2.08a4 4 0 0 1 .85-1.32 7 7 0 0 1 .96 0m-2.75.4a6.5 6.5 0 0 0-3.67 3.44 29 29 0 0 1 2.7-.34q.31-1.83.97-3.1M4.58 6.28q-1.66.16-2.95.43a7 7 0 0 0 0 2.58q1.3.27 2.95.43a18 18 0 0 1 0-3.44m.17 4.71q-1.45-.12-2.69-.34a6.5 6.5 0 0 0 3.67 3.44q-.65-1.27-.98-3.1" fill="#666"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h16v16H0z"/></clipPath></defs></svg>

7_server/public/next.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 394 80"><path fill="#000" d="M262 0h68.5v12.7h-27.2v66.6h-13.6V12.7H262V0ZM149 0v12.7H94v20.4h44.3v12.6H94v21h55v12.6H80.5V0h68.7zm34.3 0h-17.8l63.8 79.4h17.9l-32-39.7 32-39.6h-17.9l-23 28.6-23-28.6zm18.3 56.7-9-11-27.1 33.7h17.8l18.3-22.7z"/><path fill="#000" d="M81 79.3 17 0H0v79.3h13.6V17l50.2 62.3H81Zm252.6-.4c-1 0-1.8-.4-2.5-1s-1.1-1.6-1.1-2.6.3-1.8 1-2.5 1.6-1 2.6-1 1.8.3 2.5 1a3.4 3.4 0 0 1 .6 4.3 3.7 3.7 0 0 1-3 1.8zm23.2-33.5h6v23.3c0 2.1-.4 4-1.3 5.5a9.1 9.1 0 0 1-3.8 3.5c-1.6.8-3.5 1.3-5.7 1.3-2 0-3.7-.4-5.3-1s-2.8-1.8-3.7-3.2c-.9-1.3-1.4-3-1.4-5h6c.1.8.3 1.6.7 2.2s1 1.2 1.6 1.5c.7.4 1.5.5 2.4.5 1 0 1.8-.2 2.4-.6a4 4 0 0 0 1.6-1.8c.3-.8.5-1.8.5-3V45.5zm30.9 9.1a4.4 4.4 0 0 0-2-3.3 7.5 7.5 0 0 0-4.3-1.1c-1.3 0-2.4.2-3.3.5-.9.4-1.6 1-2 1.6a3.5 3.5 0 0 0-.3 4c.3.5.7.9 1.3 1.2l1.8 1 2 .5 3.2.8c1.3.3 2.5.7 3.7 1.2a13 13 0 0 1 3.2 1.8 8.1 8.1 0 0 1 3 6.5c0 2-.5 3.7-1.5 5.1a10 10 0 0 1-4.4 3.5c-1.8.8-4.1 1.2-6.8 1.2-2.6 0-4.9-.4-6.8-1.2-2-.8-3.4-2-4.5-3.5a10 10 0 0 1-1.7-5.6h6a5 5 0 0 0 3.5 4.6c1 .4 2.2.6 3.4.6 1.3 0 2.5-.2 3.5-.6 1-.4 1.8-1 2.4-1.7a4 4 0 0 0 .8-2.4c0-.9-.2-1.6-.7-2.2a11 11 0 0 0-2.1-1.4l-3.2-1-3.8-1c-2.8-.7-5-1.7-6.6-3.2a7.2 7.2 0 0 1-2.4-5.7 8 8 0 0 1 1.7-5 10 10 0 0 1 4.3-3.5c2-.8 4-1.2 6.4-1.2 2.3 0 4.4.4 6.2 1.2 1.8.8 3.2 2 4.3 3.4 1 1.4 1.5 3 1.5 5h-5.8z"/></svg>

7_server/public/vercel.svg

@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1155 1000"><path d="m577.3 0 577.4 1000H0z" fill="#fff"/></svg>

7_server/public/window.svg

@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" clip-rule="evenodd" d="M1.5 2.5h13v10a1 1 0 0 1-1 1h-11a1 1 0 0 1-1-1zM0 1h16v11.5a2.5 2.5 0 0 1-2.5 2.5h-11A2.5 2.5 0 0 1 0 12.5zm3.75 4.5a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5M7 4.75a.75.75 0 1 1-1.5 0 .75.75 0 0 1 1.5 0m1.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5" fill="#666"/></svg>

7_server/src/app/api/run-workflow/route.ts

@@ -0,0 +1,116 @@
+import { NextResponse } from 'next/server';
+import { createWorkflow, workflowEvent, getContext, } from "@llama-flow/core";
+import { withStore } from "@llama-flow/core/middleware/store";
+import { pipeline } from "node:stream/promises";
+import { Anthropic } from "@llamaindex/anthropic";
+
+export async function GET() {
+  const encoder = new TextEncoder();
+  const stream = new ReadableStream({
+    async start(controller) {
+      // Send initial connection message
+      controller.enqueue(encoder.encode('data: Connected to workflow\n\n'));
+
+      // initialize the anthropic client
+      const llm = new Anthropic({
+        apiKey: process.env.ANTHROPIC_API_KEY,
+      });
+
+      ////////// define the workflow
+
+      const startEvent = workflowEvent<{
+        topic:string|null,
+        research:string,
+        feedback:string|null
+      }>();
+      const writeEvent = workflowEvent<string>();
+      const reviewEvent = workflowEvent<string>();
+      const stopEvent = workflowEvent<string>();
+
+      const workflow = withStore(()=>({
+        topic: null as string | null,
+        research: "" as string,
+        feedback: null as string | null
+      }),createWorkflow());
+
+      // handle the start event, which is either a new topic
+      // or a loop with feedback for additional research
+      workflow.handle([startEvent], async (start) => {
+        console.log("Starting agent, topic is ", start.data.topic)
+
+        // store the topic in case we need to loop
+        workflow.getStore().topic = start.data.topic
+        let prompt = `What do you know about the topic <topic>${start.data.topic}</topic>? Be very brief.`
+
+        // if we've previously looped, include the feedback
+        if (start.data.feedback) {
+          console.log("Feedback is ", start.data.feedback)
+          prompt += `\nYou have researched this topic before. The feedback you got to research it more is: <feedback>${start.data.feedback}</feedback>`
+        }
+
+        // get the research
+        let result = await llm.complete({prompt:prompt})
+        return writeEvent.with(result.text)
+      });
+
+      // with the research, store it and try writing a post
+      workflow.handle([writeEvent], async (write) => {
+        console.log(`Writing post, data is ${write.data}`)
+
+        // store the research; this may not be the first time around
+        workflow.getStore().research += `<research>${write.data}</research>`
+
+        // try writing a post
+        let result = await llm.complete({prompt:`We have done some research about a topic. Write a post about it. Use ONLY the research data provided, nothing from your training data, even if that results in a very short post. ${workflow.getStore().research}`})
+        return reviewEvent.with(result.text)
+      });
+
+      // review the post and either stop or loop
+      workflow.handle([reviewEvent], async (review) => {
+        console.log("Reviewing post, data is ", review.data)
+
+        // review the post
+        let result = await llm.complete({prompt:`We have written a post about a topic. Review it for any errors or missing information. <post>${review.data}</post>. If it is good, return the string "good". If it requires more research, return some feedback on what to research next.`})
+
+        // if the post is good, stop
+        if (result.text === "good") {
+          console.log("Post is good, stopping")
+          return stopEvent.with(review.data)
+        } else {
+          // otherwise, loop with the feedback
+          console.log("Post got feedback; looping")
+          return startEvent.with({
+            topic: workflow.getStore().topic,
+            research: workflow.getStore().research,
+            feedback: result.text
+          })
+        }
+      });
+
+      ////////// run the workflow
+
+      // Create a workflow context and send the initial event
+      const { stream, sendEvent } = workflow.createContext();
+      sendEvent(startEvent.with({topic:"Unicorns",research:null,feedback:null}));
+
+      // Process the stream to get the result
+      pipeline(stream, async function (source) {
+        for await (const event of source) {
+          console.log("Got a new event", event.data)
+          controller.enqueue(encoder.encode("data: " + JSON.stringify(event.data)+"\n\n"));  
+          if (stopEvent.include(event)) {
+            controller.close();
+          }
+        }
+      });
+    },
+  });
+
+  return new NextResponse(stream, {
+    headers: {
+      'Content-Type': 'text/event-stream',
+      'Cache-Control': 'no-cache',
+      'Connection': 'keep-alive',
+    },
+  });
+} 

7_server/src/app/globals.css

@@ -0,0 +1,66 @@
+:root {
+  --background: #ffffff;
+  --foreground: #171717;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --background: #0a0a0a;
+    --foreground: #ededed;
+  }
+}
+
+html,
+body {
+  max-width: 100vw;
+  overflow-x: hidden;
+}
+
+body {
+  color: var(--foreground);
+  background: var(--background);
+  font-family: Arial, Helvetica, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+* {
+  box-sizing: border-box;
+  padding: 0;
+  margin: 0;
+}
+
+a {
+  color: inherit;
+  text-decoration: none;
+}
+
+@media (prefers-color-scheme: dark) {
+  html {
+    color-scheme: dark;
+  }
+}
+
+.page-container {
+  padding: 1rem;
+}
+
+.page-heading {
+  font-size: 1.5rem;
+  font-weight: bold;
+  margin-bottom: 1rem;
+}
+
+.events-list {
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.event-item {
+  padding: 0.5rem;
+  background-color: #f3f4f6;
+  border-radius: 0.25rem;
+  list-style-type: disc;
+  list-style-position: inside;
+}

7_server/src/app/layout.tsx

@@ -0,0 +1,32 @@
+import type { Metadata } from "next";
+import { Geist, Geist_Mono } from "next/font/google";
+import "./globals.css";
+
+const geistSans = Geist({
+  variable: "--font-geist-sans",
+  subsets: ["latin"],
+});
+
+const geistMono = Geist_Mono({
+  variable: "--font-geist-mono",
+  subsets: ["latin"],
+});
+
+export const metadata: Metadata = {
+  title: "Create Next App",
+  description: "Generated by create next app",
+};
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html lang="en">
+      <body className={`${geistSans.variable} ${geistMono.variable}`}>
+        {children}
+      </body>
+    </html>
+  );
+}

7_server/src/app/page.module.css

@@ -0,0 +1,168 @@
+.page {
+  --gray-rgb: 0, 0, 0;
+  --gray-alpha-200: rgba(var(--gray-rgb), 0.08);
+  --gray-alpha-100: rgba(var(--gray-rgb), 0.05);
+
+  --button-primary-hover: #383838;
+  --button-secondary-hover: #f2f2f2;
+
+  display: grid;
+  grid-template-rows: 20px 1fr 20px;
+  align-items: center;
+  justify-items: center;
+  min-height: 100svh;
+  padding: 80px;
+  gap: 64px;
+  font-family: var(--font-geist-sans);
+}
+
+@media (prefers-color-scheme: dark) {
+  .page {
+    --gray-rgb: 255, 255, 255;
+    --gray-alpha-200: rgba(var(--gray-rgb), 0.145);
+    --gray-alpha-100: rgba(var(--gray-rgb), 0.06);
+
+    --button-primary-hover: #ccc;
+    --button-secondary-hover: #1a1a1a;
+  }
+}
+
+.main {
+  display: flex;
+  flex-direction: column;
+  gap: 32px;
+  grid-row-start: 2;
+}
+
+.main ol {
+  font-family: var(--font-geist-mono);
+  padding-left: 0;
+  margin: 0;
+  font-size: 14px;
+  line-height: 24px;
+  letter-spacing: -0.01em;
+  list-style-position: inside;
+}
+
+.main li:not(:last-of-type) {
+  margin-bottom: 8px;
+}
+
+.main code {
+  font-family: inherit;
+  background: var(--gray-alpha-100);
+  padding: 2px 4px;
+  border-radius: 4px;
+  font-weight: 600;
+}
+
+.ctas {
+  display: flex;
+  gap: 16px;
+}
+
+.ctas a {
+  appearance: none;
+  border-radius: 128px;
+  height: 48px;
+  padding: 0 20px;
+  border: none;
+  border: 1px solid transparent;
+  transition:
+    background 0.2s,
+    color 0.2s,
+    border-color 0.2s;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 16px;
+  line-height: 20px;
+  font-weight: 500;
+}
+
+a.primary {
+  background: var(--foreground);
+  color: var(--background);
+  gap: 8px;
+}
+
+a.secondary {
+  border-color: var(--gray-alpha-200);
+  min-width: 158px;
+}
+
+.footer {
+  grid-row-start: 3;
+  display: flex;
+  gap: 24px;
+}
+
+.footer a {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.footer img {
+  flex-shrink: 0;
+}
+
+/* Enable hover only on non-touch devices */
+@media (hover: hover) and (pointer: fine) {
+  a.primary:hover {
+    background: var(--button-primary-hover);
+    border-color: transparent;
+  }
+
+  a.secondary:hover {
+    background: var(--button-secondary-hover);
+    border-color: transparent;
+  }
+
+  .footer a:hover {
+    text-decoration: underline;
+    text-underline-offset: 4px;
+  }
+}
+
+@media (max-width: 600px) {
+  .page {
+    padding: 32px;
+    padding-bottom: 80px;
+  }
+
+  .main {
+    align-items: center;
+  }
+
+  .main ol {
+    text-align: center;
+  }
+
+  .ctas {
+    flex-direction: column;
+  }
+
+  .ctas a {
+    font-size: 14px;
+    height: 40px;
+    padding: 0 16px;
+  }
+
+  a.secondary {
+    min-width: auto;
+  }
+
+  .footer {
+    flex-wrap: wrap;
+    align-items: center;
+    justify-content: center;
+  }
+}
+
+@media (prefers-color-scheme: dark) {
+  .logo {
+    filter: invert();
+  }
+}

7_server/src/app/page.tsx

@@ -0,0 +1,37 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+
+export default function Home() {
+  const [events, setEvents] = useState<string[]>([]);
+
+  useEffect(() => {
+    const eventSource = new EventSource('/api/run-workflow');
+
+    eventSource.onmessage = (event) => {
+      console.log("Got a new event", event.data)
+      setEvents(prev => [...prev, event.data]);
+    };
+
+    eventSource.onerror = () => {
+      eventSource.close();
+    };
+
+    return () => {
+      eventSource.close();
+    };
+  }, []);
+
+  return (
+    <div className="page-container">
+      <h1 className="page-heading">Workflow Events</h1>
+      <ul className="events-list">
+        {events.map((event, index) => (
+          <li key={index} className="event-item">
+            {event}
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}

7_server/tsconfig.json

@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    "target": "ES2017",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "exclude": ["node_modules"]
+}

README.md

@@ -0,0 +1,2 @@
+# LlamaIndex.TS Workflows Demo
+

package.json

@@ -0,0 +1,8 @@
+{
+  "type": "module",
+  "dependencies": {
+    "@llama-flow/core": "^0.3.4",
+    "llamaindex": "^0.10.2",
+    "tsx": "^4.19.3"
+  }
+}