├── src
    ├── vite-env.d.ts
    ├── aiChat
    │   ├── styles.css
    │   ├── TrashIcon.tsx
    │   ├── CloseIcon.tsx
    │   ├── SendIcon.tsx
    │   ├── SizeIcon.tsx
    │   ├── InfoCircled.tsx
    │   └── index.tsx
    ├── main.tsx
    ├── components
    │   ├── typography
    │   │   └── link.tsx
    │   └── ui
    │   │   └── button.tsx
    ├── lib
    │   └── utils.tsx
    ├── App.tsx
    └── index.css
├── convex
    ├── langchain
    │   └── db.ts
    ├── _generated
    │   ├── api.js
    │   ├── api.d.ts
    │   ├── dataModel.d.ts
    │   ├── server.js
    │   └── server.d.ts
    ├── tsconfig.json
    ├── schema.ts
    ├── helpers.ts
    ├── serve.ts
    ├── messages.ts
    ├── ingest
    │   └── load.ts
    └── README.md
├── screenshot.png
├── postcss.config.js
├── .gitignore
├── tsconfig.node.json
├── vite.config.ts
├── components.json
├── index.html
├── tsconfig.json
├── .eslintrc.cjs
├── tailwind.config.js
├── package.json
├── README.md
└── LICENSE


/src/vite-env.d.ts:
--------------------------------------------------------------------------------
1 | /// <reference types="vite/client" />
2 | 


--------------------------------------------------------------------------------
/convex/langchain/db.ts:
--------------------------------------------------------------------------------
1 | export * from "@langchain/community/utils/convex";
2 | 


--------------------------------------------------------------------------------
/src/aiChat/styles.css:
--------------------------------------------------------------------------------
1 | @tailwind base;
2 | @tailwind components;
3 | @tailwind utilities;
4 | 


--------------------------------------------------------------------------------
/screenshot.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/get-convex/convex-ai-chat-langchain/HEAD/screenshot.png


--------------------------------------------------------------------------------
/postcss.config.js:
--------------------------------------------------------------------------------
1 | export default {
2 |   plugins: {
3 |     tailwindcss: {},
4 |     autoprefixer: {},
5 |   },
6 | }
7 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | !**/glob-import/dir/node_modules
 2 | .DS_Store
 3 | .idea
 4 | *.cpuprofile
 5 | *.local
 6 | *.log
 7 | /.vscode/
 8 | /docs/.vitepress/cache
 9 | dist
10 | dist-ssr
11 | explorations
12 | node_modules
13 | playground-temp
14 | temp
15 | TODOs.md
16 | .eslintcache
17 | 


--------------------------------------------------------------------------------
/tsconfig.node.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "composite": true,
 4 |     "skipLibCheck": true,
 5 |     "module": "ESNext",
 6 |     "moduleResolution": "bundler",
 7 |     "allowSyntheticDefaultImports": true
 8 |   },
 9 |   "include": ["vite.config.ts"]
10 | }
11 | 


--------------------------------------------------------------------------------
/src/main.tsx:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import ReactDOM from "react-dom/client";
 3 | import App from "./App";
 4 | import "./index.css";
 5 | 
 6 | ReactDOM.createRoot(document.getElementById("root")!).render(
 7 |   <React.StrictMode>
 8 |     <App />
 9 |   </React.StrictMode>
10 | );
11 | 


--------------------------------------------------------------------------------
/src/components/typography/link.tsx:
--------------------------------------------------------------------------------
 1 | import { se } from "@/lib/utils";
 2 | import { AnchorHTMLAttributes } from "react";
 3 | 
 4 | export const Link = se<
 5 |   HTMLAnchorElement,
 6 |   AnchorHTMLAttributes<HTMLAnchorElement>
 7 | >(
 8 |   "a",
 9 |   "font-medium text-primary underline underline-offset-4 hover:no-underline"
10 | );
11 | 


--------------------------------------------------------------------------------
/vite.config.ts:
--------------------------------------------------------------------------------
 1 | import path from "path";
 2 | import react from "@vitejs/plugin-react";
 3 | import { defineConfig } from "vite";
 4 | 
 5 | // https://vitejs.dev/config/
 6 | export default defineConfig({
 7 |   plugins: [react()],
 8 |   resolve: {
 9 |     alias: {
10 |       "@": path.resolve(__dirname, "./src"),
11 |     },
12 |   },
13 | });
14 | 


--------------------------------------------------------------------------------
/components.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "$schema": "https://ui.shadcn.com/schema.json",
 3 |   "style": "new-york",
 4 |   "rsc": false,
 5 |   "tsx": true,
 6 |   "tailwind": {
 7 |     "config": "tailwind.config.js",
 8 |     "css": "src/index.css",
 9 |     "baseColor": "zinc",
10 |     "cssVariables": true
11 |   },
12 |   "aliases": {
13 |     "components": "@/components",
14 |     "utils": "@/lib/utils"
15 |   }
16 | }


--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="UTF-8" />
 5 |     <link rel="icon" type="image/svg+xml" href="/vite.svg" />
 6 |     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 7 |     <title>Convex + React (Vite)</title>
 8 |   </head>
 9 |   <body>
10 |     <div id="root"></div>
11 |     <script type="module" src="/src/main.tsx"></script>
12 |   </body>
13 | </html>
14 | 


--------------------------------------------------------------------------------
/convex/_generated/api.js:
--------------------------------------------------------------------------------
 1 | /* eslint-disable */
 2 | /**
 3 |  * Generated `api` utility.
 4 |  *
 5 |  * THIS CODE IS AUTOMATICALLY GENERATED.
 6 |  *
 7 |  * Generated by convex@1.13.2.
 8 |  * To regenerate, run `npx convex dev`.
 9 |  * @module
10 |  */
11 | 
12 | import { anyApi } from "convex/server";
13 | 
14 | /**
15 |  * A utility for referencing Convex functions in your app's API.
16 |  *
17 |  * Usage:
18 |  * ```js
19 |  * const myFunctionReference = api.myModule.myFunction;
20 |  * ```
21 |  */
22 | export const api = anyApi;
23 | export const internal = anyApi;
24 | 


--------------------------------------------------------------------------------
/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "target": "ES2020",
 4 |     "useDefineForClassFields": true,
 5 |     "lib": ["ES2020", "DOM", "DOM.Iterable"],
 6 |     "module": "ESNext",
 7 |     "skipLibCheck": true,
 8 | 
 9 |     /* Bundler mode */
10 |     "moduleResolution": "bundler",
11 |     "allowImportingTsExtensions": true,
12 |     "resolveJsonModule": true,
13 |     "isolatedModules": true,
14 |     "noEmit": true,
15 |     "jsx": "react-jsx",
16 | 
17 |     /* Linting */
18 |     "strict": true,
19 |     "noUnusedLocals": true,
20 |     "noUnusedParameters": true,
21 |     "noFallthroughCasesInSwitch": true,
22 | 
23 |     "baseUrl": ".",
24 |     "paths": {
25 |       "@/*": ["./src/*"]
26 |     }
27 |   },
28 |   "references": [{ "path": "./tsconfig.node.json" }]
29 | }
30 | 


--------------------------------------------------------------------------------
/src/aiChat/TrashIcon.tsx:
--------------------------------------------------------------------------------
 1 | export function TrashIcon({ className }: { className?: string }) {
 2 |   return (
 3 |     <svg
 4 |       className={className}
 5 |       width="15"
 6 |       height="15"
 7 |       viewBox="0 0 15 15"
 8 |       fill="none"
 9 |       xmlns="http://www.w3.org/2000/svg"
10 |     >
11 |       <path
12 |         d="M5.5 1C5.22386 1 5 1.22386 5 1.5C5 1.77614 5.22386 2 5.5 2H9.5C9.77614 2 10 1.77614 10 1.5C10 1.22386 9.77614 1 9.5 1H5.5ZM3 3.5C3 3.22386 3.22386 3 3.5 3H5H10H11.5C11.7761 3 12 3.22386 12 3.5C12 3.77614 11.7761 4 11.5 4H11V12C11 12.5523 10.5523 13 10 13H5C4.44772 13 4 12.5523 4 12V4L3.5 4C3.22386 4 3 3.77614 3 3.5ZM5 4H10V12H5V4Z"
13 |         fill="currentColor"
14 |         fillRule="evenodd"
15 |         clipRule="evenodd"
16 |       ></path>
17 |     </svg>
18 |   );
19 | }
20 | 


--------------------------------------------------------------------------------
/convex/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   /* This TypeScript project config describes the environment that
 3 |    * Convex functions run in and is used to typecheck them.
 4 |    * You can modify it, but some settings required to use Convex.
 5 |    */
 6 |   "compilerOptions": {
 7 |     /* These settings are not required by Convex and can be modified. */
 8 |     "allowJs": true,
 9 |     "strict": true,
10 | 
11 |     /* These compiler options are required by Convex */
12 |     "target": "ESNext",
13 |     "lib": ["ES2021", "dom"],
14 |     "forceConsistentCasingInFileNames": true,
15 |     "allowSyntheticDefaultImports": true,
16 |     "module": "ESNext",
17 |     "moduleResolution": "Node",
18 |     "isolatedModules": true,
19 |     "skipLibCheck": true,
20 |     "noEmit": true
21 |   },
22 |   "include": ["./**/*"],
23 |   "exclude": ["./_generated"]
24 | }
25 | 


--------------------------------------------------------------------------------
/src/aiChat/CloseIcon.tsx:
--------------------------------------------------------------------------------
 1 | export function CloseIcon({ className }: { className?: string }) {
 2 |   return (
 3 |     <svg
 4 |       className={className}
 5 |       width="15"
 6 |       height="15"
 7 |       viewBox="0 0 15 15"
 8 |       fill="none"
 9 |       xmlns="http://www.w3.org/2000/svg"
10 |     >
11 |       <path
12 |         d="M12.8536 2.85355C13.0488 2.65829 13.0488 2.34171 12.8536 2.14645C12.6583 1.95118 12.3417 1.95118 12.1464 2.14645L7.5 6.79289L2.85355 2.14645C2.65829 1.95118 2.34171 1.95118 2.14645 2.14645C1.95118 2.34171 1.95118 2.65829 2.14645 2.85355L6.79289 7.5L2.14645 12.1464C1.95118 12.3417 1.95118 12.6583 2.14645 12.8536C2.34171 13.0488 2.65829 13.0488 2.85355 12.8536L7.5 8.20711L12.1464 12.8536C12.3417 13.0488 12.6583 13.0488 12.8536 12.8536C13.0488 12.6583 13.0488 12.3417 12.8536 12.1464L8.20711 7.5L12.8536 2.85355Z"
13 |         fill="currentColor"
14 |         fillRule="evenodd"
15 |         clipRule="evenodd"
16 |       ></path>
17 |     </svg>
18 |   );
19 | }
20 | 


--------------------------------------------------------------------------------
/src/aiChat/SendIcon.tsx:
--------------------------------------------------------------------------------
 1 | export function SendIcon({ className }: { className?: string }) {
 2 |   return (
 3 |     <svg
 4 |       className={className}
 5 |       width="15"
 6 |       height="15"
 7 |       viewBox="0 0 15 15"
 8 |       fill="none"
 9 |       xmlns="http://www.w3.org/2000/svg"
10 |     >
11 |       <path
12 |         d="M1.20308 1.04312C1.00481 0.954998 0.772341 1.0048 0.627577 1.16641C0.482813 1.32802 0.458794 1.56455 0.568117 1.75196L3.92115 7.50002L0.568117 13.2481C0.458794 13.4355 0.482813 13.672 0.627577 13.8336C0.772341 13.9952 1.00481 14.045 1.20308 13.9569L14.7031 7.95693C14.8836 7.87668 15 7.69762 15 7.50002C15 7.30243 14.8836 7.12337 14.7031 7.04312L1.20308 1.04312ZM4.84553 7.10002L2.21234 2.586L13.2689 7.50002L2.21234 12.414L4.84552 7.90002H9C9.22092 7.90002 9.4 7.72094 9.4 7.50002C9.4 7.27911 9.22092 7.10002 9 7.10002H4.84553Z"
13 |         fill="currentColor"
14 |         fillRule="evenodd"
15 |         clipRule="evenodd"
16 |       ></path>
17 |     </svg>
18 |   );
19 | }
20 | 


--------------------------------------------------------------------------------
/src/lib/utils.tsx:
--------------------------------------------------------------------------------
 1 | import { type ClassValue, clsx } from "clsx";
 2 | import { ForwardRefRenderFunction, forwardRef } from "react";
 3 | import { twMerge } from "tailwind-merge";
 4 | 
 5 | export function cn(...inputs: ClassValue[]) {
 6 |   return twMerge(clsx(inputs));
 7 | }
 8 | 
 9 | // forward refs
10 | export function fr<T = HTMLElement, P = React.HTMLAttributes<T>>(
11 |   component: ForwardRefRenderFunction<T, P>
12 | ) {
13 |   const wrapped = forwardRef(component);
14 |   wrapped.displayName = component.name;
15 |   return wrapped;
16 | }
17 | 
18 | // styled element
19 | export function se<
20 |   T = HTMLElement,
21 |   P extends React.HTMLAttributes<T> = React.HTMLAttributes<T>
22 | >(Tag: keyof React.ReactHTML, ...classNames: ClassValue[]) {
23 |   const component = fr<T, P>(({ className, ...props }, ref) => (
24 |     // @ts-expect-error Too complicated for TypeScript
25 |     <Tag ref={ref} className={cn(...classNames, className)} {...props} />
26 |   ));
27 |   component.displayName = Tag[0].toUpperCase() + Tag.slice(1);
28 |   return component;
29 | }
30 | 


--------------------------------------------------------------------------------
/convex/schema.ts:
--------------------------------------------------------------------------------
 1 | import { defineSchema, defineTable } from "convex/server";
 2 | import { v } from "convex/values";
 3 | 
 4 | export default defineSchema({
 5 |   cache: defineTable({
 6 |     key: v.string(),
 7 |     value: v.any(),
 8 |   }).index("byKey", ["key"]),
 9 |   documents: defineTable({
10 |     embedding: v.array(v.number()),
11 |     text: v.string(),
12 |     metadata: v.any(),
13 |   }).vectorIndex("byEmbedding", {
14 |     vectorField: "embedding",
15 |     dimensions: 1536,
16 |   }),
17 |   messages: defineTable({
18 |     sessionId: v.string(),
19 |     message: v.object({
20 |       type: v.string(),
21 |       data: v.object({
22 |         content: v.string(),
23 |         role: v.optional(v.string()),
24 |         name: v.optional(v.string()),
25 |         additional_kwargs: v.optional(v.any()),
26 |         response_metadata: v.optional(v.any()),
27 |         id: v.optional(v.string()),
28 |         invalid_tool_calls: v.optional(v.array(v.any())),
29 |         tool_calls: v.optional(v.array(v.any())),
30 |       }),
31 |     }),
32 |   }).index("bySessionId", ["sessionId"]),
33 | });
34 | 


--------------------------------------------------------------------------------
/src/aiChat/SizeIcon.tsx:
--------------------------------------------------------------------------------
 1 | export function SizeIcon({ className }: { className?: string }) {
 2 |   return (
 3 |     <svg
 4 |       className={className}
 5 |       width="15"
 6 |       height="15"
 7 |       viewBox="0 0 15 15"
 8 |       fill="none"
 9 |       xmlns="http://www.w3.org/2000/svg"
10 |     >
11 |       <path
12 |         d="M11.5 3.04999C11.7485 3.04999 11.95 3.25146 11.95 3.49999V7.49999C11.95 7.74852 11.7485 7.94999 11.5 7.94999C11.2515 7.94999 11.05 7.74852 11.05 7.49999V4.58639L4.58638 11.05H7.49999C7.74852 11.05 7.94999 11.2515 7.94999 11.5C7.94999 11.7485 7.74852 11.95 7.49999 11.95L3.49999 11.95C3.38064 11.95 3.26618 11.9026 3.18179 11.8182C3.0974 11.7338 3.04999 11.6193 3.04999 11.5L3.04999 7.49999C3.04999 7.25146 3.25146 7.04999 3.49999 7.04999C3.74852 7.04999 3.94999 7.25146 3.94999 7.49999L3.94999 10.4136L10.4136 3.94999L7.49999 3.94999C7.25146 3.94999 7.04999 3.74852 7.04999 3.49999C7.04999 3.25146 7.25146 3.04999 7.49999 3.04999L11.5 3.04999Z"
13 |         fill="currentColor"
14 |         fillRule="evenodd"
15 |         clipRule="evenodd"
16 |       ></path>
17 |     </svg>
18 |   );
19 | }
20 | 


--------------------------------------------------------------------------------
/src/App.tsx:
--------------------------------------------------------------------------------
 1 | import { ConvexAiChat } from "@/aiChat";
 2 | import { Link } from "@/components/typography/link";
 3 | import { Button } from "@/components/ui/button";
 4 | 
 5 | function App() {
 6 |   return (
 7 |     <main className="container max-w-2xl flex flex-col gap-8">
 8 |       <h1 className="text-4xl font-extrabold my-8 text-center">
 9 |         AI Chat using Convex and LangChain
10 |       </h1>
11 |       <p>Click the button to open the chat window</p>
12 |       <p>
13 |         <ConvexAiChat
14 |           convexUrl={import.meta.env.VITE_CONVEX_URL as string}
15 |           name="Lucky AI Bot"
16 |           infoMessage="AI can make mistakes. Verify answers."
17 |           welcomeMessage="Hey there, what can I help you with?"
18 |           renderTrigger={(onClick) => (
19 |             <Button onClick={onClick}>Open AI chat</Button>
20 |           )}
21 |         />
22 |       </p>
23 |       <p>
24 |         Check out{" "}
25 |         <Link target="_blank" href="https://docs.convex.dev/home">
26 |           Convex docs
27 |         </Link>
28 |       </p>
29 |     </main>
30 |   );
31 | }
32 | 
33 | export default App;
34 | 


--------------------------------------------------------------------------------
/convex/helpers.ts:
--------------------------------------------------------------------------------
 1 | import { PaginationResult } from "convex/server";
 2 | import { internal } from "./_generated/api";
 3 | import { Doc, TableNames } from "./_generated/dataModel";
 4 | import { ActionCtx, QueryCtx, internalQuery } from "./_generated/server";
 5 | 
 6 | export async function paginate<T extends TableNames>(
 7 |   ctx: ActionCtx,
 8 |   table: T,
 9 |   batchSize: number,
10 |   callback: (documents: Doc<T>[]) => Promise<void>
11 | ): Promise<void> {
12 |   let isDone = false;
13 |   let cursor = null;
14 |   while (!isDone) {
15 |     const result: PaginationResult<Doc<T>> = (await ctx.runQuery(
16 |       internal.helpers.paginateQuery,
17 |       {
18 |         table,
19 |         cursor,
20 |         numItems: batchSize,
21 |       }
22 |     )) as any;
23 |     await callback(result.page);
24 |     ({ isDone, continueCursor: cursor } = result);
25 |   }
26 | }
27 | 
28 | export const paginateQuery = internalQuery(
29 |   async <T extends TableNames>(
30 |     ctx: QueryCtx,
31 |     args: { table: T; cursor: any; numItems: number }
32 |   ) => {
33 |     return await ctx.db
34 |       .query(args.table)
35 |       .paginate({ cursor: args.cursor, numItems: args.numItems });
36 |   }
37 | );
38 | 


--------------------------------------------------------------------------------
/convex/_generated/api.d.ts:
--------------------------------------------------------------------------------
 1 | /* eslint-disable */
 2 | /**
 3 |  * Generated `api` utility.
 4 |  *
 5 |  * THIS CODE IS AUTOMATICALLY GENERATED.
 6 |  *
 7 |  * Generated by convex@1.13.2.
 8 |  * To regenerate, run `npx convex dev`.
 9 |  * @module
10 |  */
11 | 
12 | import type {
13 |   ApiFromModules,
14 |   FilterApi,
15 |   FunctionReference,
16 | } from "convex/server";
17 | import type * as helpers from "../helpers.js";
18 | import type * as ingest_load from "../ingest/load.js";
19 | import type * as langchain_db from "../langchain/db.js";
20 | import type * as messages from "../messages.js";
21 | import type * as serve from "../serve.js";
22 | 
23 | /**
24 |  * A utility for referencing Convex functions in your app's API.
25 |  *
26 |  * Usage:
27 |  * ```js
28 |  * const myFunctionReference = api.myModule.myFunction;
29 |  * ```
30 |  */
31 | declare const fullApi: ApiFromModules<{
32 |   helpers: typeof helpers;
33 |   "ingest/load": typeof ingest_load;
34 |   "langchain/db": typeof langchain_db;
35 |   messages: typeof messages;
36 |   serve: typeof serve;
37 | }>;
38 | export declare const api: FilterApi<
39 |   typeof fullApi,
40 |   FunctionReference<any, "public">
41 | >;
42 | export declare const internal: FilterApi<
43 |   typeof fullApi,
44 |   FunctionReference<any, "internal">
45 | >;
46 | 


--------------------------------------------------------------------------------
/src/aiChat/InfoCircled.tsx:
--------------------------------------------------------------------------------
 1 | export function InfoCircled({ className }: { className?: string }) {
 2 |   return (
 3 |     <svg
 4 |       className={className}
 5 |       width="15"
 6 |       height="15"
 7 |       viewBox="0 0 15 15"
 8 |       fill="none"
 9 |       xmlns="http://www.w3.org/2000/svg"
10 |     >
11 |       <path
12 |         d="M7.49991 0.876892C3.84222 0.876892 0.877075 3.84204 0.877075 7.49972C0.877075 11.1574 3.84222 14.1226 7.49991 14.1226C11.1576 14.1226 14.1227 11.1574 14.1227 7.49972C14.1227 3.84204 11.1576 0.876892 7.49991 0.876892ZM1.82707 7.49972C1.82707 4.36671 4.36689 1.82689 7.49991 1.82689C10.6329 1.82689 13.1727 4.36671 13.1727 7.49972C13.1727 10.6327 10.6329 13.1726 7.49991 13.1726C4.36689 13.1726 1.82707 10.6327 1.82707 7.49972ZM8.24992 4.49999C8.24992 4.9142 7.91413 5.24999 7.49992 5.24999C7.08571 5.24999 6.74992 4.9142 6.74992 4.49999C6.74992 4.08577 7.08571 3.74999 7.49992 3.74999C7.91413 3.74999 8.24992 4.08577 8.24992 4.49999ZM6.00003 5.99999H6.50003H7.50003C7.77618 5.99999 8.00003 6.22384 8.00003 6.49999V9.99999H8.50003H9.00003V11H8.50003H7.50003H6.50003H6.00003V9.99999H6.50003H7.00003V6.99999H6.50003H6.00003V5.99999Z"
13 |         fill="currentColor"
14 |         fillRule="evenodd"
15 |         clipRule="evenodd"
16 |       ></path>
17 |     </svg>
18 |   );
19 | }
20 | 


--------------------------------------------------------------------------------
/convex/serve.ts:
--------------------------------------------------------------------------------
 1 | import { v } from "convex/values";
 2 | import { ConversationalRetrievalQAChain } from "langchain/chains";
 3 | import { ChatOpenAI } from "@langchain/openai";
 4 | import { OpenAIEmbeddings } from "@langchain/openai";
 5 | import { BufferMemory } from "langchain/memory";
 6 | import { ConvexChatMessageHistory } from "@langchain/community/stores/message/convex";
 7 | import { ConvexVectorStore } from "@langchain/community/vectorstores/convex";
 8 | import { internalAction } from "./_generated/server";
 9 | 
10 | const OPENAI_MODEL = "gpt-3.5-turbo";
11 | 
12 | export const answer = internalAction({
13 |   args: {
14 |     sessionId: v.string(),
15 |     message: v.string(),
16 |   },
17 |   handler: async (ctx, { sessionId, message }) => {
18 |     const vectorStore = new ConvexVectorStore(new OpenAIEmbeddings(), { ctx });
19 | 
20 |     const model = new ChatOpenAI({ modelName: OPENAI_MODEL });
21 |     const memory = new BufferMemory({
22 |       chatHistory: new ConvexChatMessageHistory({ sessionId, ctx }),
23 |       memoryKey: "chat_history",
24 |       outputKey: "text",
25 |       returnMessages: true,
26 |     });
27 |     const chain = ConversationalRetrievalQAChain.fromLLM(
28 |       model,
29 |       vectorStore.asRetriever(),
30 |       { memory }
31 |     );
32 | 
33 |     await chain.call({ question: message });
34 |   },
35 | });
36 | 


--------------------------------------------------------------------------------
/convex/messages.ts:
--------------------------------------------------------------------------------
 1 | import { v } from "convex/values";
 2 | import { mutation } from "./_generated/server";
 3 | import { query } from "./_generated/server";
 4 | import { internal } from "./_generated/api";
 5 | 
 6 | export const list = query({
 7 |   args: {
 8 |     sessionId: v.string(),
 9 |   },
10 |   handler: async (ctx, args) => {
11 |     return (
12 |       await ctx.db
13 |         .query("messages")
14 |         .withIndex("bySessionId", (q) => q.eq("sessionId", args.sessionId))
15 |         .collect()
16 |     ).map(({ message: { data, type }, ...fields }) => ({
17 |       ...fields,
18 |       isViewer: type === "human",
19 |       text: data.content,
20 |     }));
21 |   },
22 | });
23 | 
24 | export const send = mutation({
25 |   args: {
26 |     message: v.string(),
27 |     sessionId: v.string(),
28 |   },
29 |   handler: async (ctx, { message, sessionId }) => {
30 |     await ctx.scheduler.runAfter(0, internal.serve.answer, {
31 |       sessionId,
32 |       message,
33 |     });
34 |   },
35 | });
36 | 
37 | export const clear = mutation({
38 |   args: {
39 |     sessionId: v.string(),
40 |   },
41 |   handler: async (ctx, args) => {
42 |     const messages = await ctx.db
43 |       .query("messages")
44 |       .withIndex("bySessionId", (q) => q.eq("sessionId", args.sessionId))
45 |       .collect();
46 |     await Promise.all(messages.map((message) => ctx.db.delete(message._id)));
47 |   },
48 | });
49 | 


--------------------------------------------------------------------------------
/.eslintrc.cjs:
--------------------------------------------------------------------------------
 1 | module.exports = {
 2 |   root: true,
 3 |   env: { browser: true, es2020: true, node: true },
 4 |   extends: [
 5 |     "eslint:recommended",
 6 |     "plugin:@typescript-eslint/recommended-type-checked",
 7 |     "plugin:react-hooks/recommended",
 8 |   ],
 9 |   ignorePatterns: [
10 |     "dist",
11 |     "convex/_generated",
12 |     ".eslintrc.cjs",
13 |     "tailwind.config.js",
14 |     // There are currently ESLint errors in shadcn/ui
15 |     "src/components/ui",
16 |   ],
17 |   parser: "@typescript-eslint/parser",
18 |   parserOptions: {
19 |     project: true,
20 |     tsconfigRootDir: __dirname,
21 |   },
22 |   plugins: ["react-refresh"],
23 |   rules: {
24 |     "react-refresh/only-export-components": [
25 |       "warn",
26 |       { allowConstantExport: true },
27 |     ],
28 | 
29 |     // All of these overrides ease getting into
30 |     // TypeScript, and can be removed for stricter
31 |     // linting down the line.
32 | 
33 |     // Allow escaping the compiler
34 |     "@typescript-eslint/ban-ts-comment": "error",
35 | 
36 |     // Allow explicit `any`s
37 |     "@typescript-eslint/no-explicit-any": "off",
38 | 
39 |     // START: Allow implicit `any`s
40 |     "@typescript-eslint/no-unsafe-argument": "off",
41 |     "@typescript-eslint/no-unsafe-assignment": "off",
42 |     "@typescript-eslint/no-unsafe-call": "off",
43 |     "@typescript-eslint/no-unsafe-member-access": "off",
44 |     "@typescript-eslint/no-unsafe-return": "off",
45 |     // END: Allow implicit `any`s
46 | 
47 |     // Allow async functions without await
48 |     // for consistency (esp. Convex `handler`s)
49 |     "@typescript-eslint/require-await": "off",
50 |   },
51 | };
52 | 


--------------------------------------------------------------------------------
/src/index.css:
--------------------------------------------------------------------------------
 1 | @tailwind base;
 2 | @tailwind components;
 3 | @tailwind utilities;
 4 | 
 5 | @layer base {
 6 |   :root {
 7 |     --background: 0 0% 100%;
 8 |     --foreground: 240 10% 3.9%;
 9 | 
10 |     --card: 0 0% 100%;
11 |     --card-foreground: 240 10% 3.9%;
12 | 
13 |     --popover: 0 0% 100%;
14 |     --popover-foreground: 240 10% 3.9%;
15 | 
16 |     --primary: 240 5.9% 10%;
17 |     --primary-foreground: 0 0% 98%;
18 | 
19 |     --secondary: 240 4.8% 95.9%;
20 |     --secondary-foreground: 240 5.9% 10%;
21 | 
22 |     --muted: 240 4.8% 95.9%;
23 |     --muted-foreground: 240 3.8% 46.1%;
24 | 
25 |     --accent: 240 4.8% 95.9%;
26 |     --accent-foreground: 240 5.9% 10%;
27 | 
28 |     --destructive: 0 84.2% 60.2%;
29 |     --destructive-foreground: 0 0% 98%;
30 | 
31 |     --border: 240 5.9% 90%;
32 |     --input: 240 5.9% 90%;
33 |     --ring: 240 10% 3.9%;
34 | 
35 |     --radius: 0.5rem;
36 |   }
37 | 
38 |   @media (prefers-color-scheme: dark) {
39 |     :root {
40 |       --background: 240 10% 3.9%;
41 |       --foreground: 0 0% 98%;
42 | 
43 |       --card: 240 10% 3.9%;
44 |       --card-foreground: 0 0% 98%;
45 | 
46 |       --popover: 240 10% 3.9%;
47 |       --popover-foreground: 0 0% 98%;
48 | 
49 |       --primary: 0 0% 98%;
50 |       --primary-foreground: 240 5.9% 10%;
51 | 
52 |       --secondary: 240 3.7% 15.9%;
53 |       --secondary-foreground: 0 0% 98%;
54 | 
55 |       --muted: 240 3.7% 15.9%;
56 |       --muted-foreground: 240 5% 64.9%;
57 | 
58 |       --accent: 240 3.7% 15.9%;
59 |       --accent-foreground: 0 0% 98%;
60 | 
61 |       --destructive: 0 62.8% 30.6%;
62 |       --destructive-foreground: 0 0% 98%;
63 | 
64 |       --border: 240 3.7% 15.9%;
65 |       --input: 240 3.7% 15.9%;
66 |       --ring: 240 4.9% 83.9%;
67 |     }
68 |   }
69 | }
70 | 
71 | @layer base {
72 |   * {
73 |     @apply border-border;
74 |   }
75 |   body {
76 |     @apply bg-background text-foreground;
77 |   }
78 | }
79 | 


--------------------------------------------------------------------------------
/convex/_generated/dataModel.d.ts:
--------------------------------------------------------------------------------
 1 | /* eslint-disable */
 2 | /**
 3 |  * Generated data model types.
 4 |  *
 5 |  * THIS CODE IS AUTOMATICALLY GENERATED.
 6 |  *
 7 |  * Generated by convex@1.13.2.
 8 |  * To regenerate, run `npx convex dev`.
 9 |  * @module
10 |  */
11 | 
12 | import type {
13 |   DataModelFromSchemaDefinition,
14 |   DocumentByName,
15 |   TableNamesInDataModel,
16 |   SystemTableNames,
17 | } from "convex/server";
18 | import type { GenericId } from "convex/values";
19 | import schema from "../schema.js";
20 | 
21 | /**
22 |  * The names of all of your Convex tables.
23 |  */
24 | export type TableNames = TableNamesInDataModel<DataModel>;
25 | 
26 | /**
27 |  * The type of a document stored in Convex.
28 |  *
29 |  * @typeParam TableName - A string literal type of the table name (like "users").
30 |  */
31 | export type Doc<TableName extends TableNames> = DocumentByName<
32 |   DataModel,
33 |   TableName
34 | >;
35 | 
36 | /**
37 |  * An identifier for a document in Convex.
38 |  *
39 |  * Convex documents are uniquely identified by their `Id`, which is accessible
40 |  * on the `_id` field. To learn more, see [Document IDs](https://docs.convex.dev/using/document-ids).
41 |  *
42 |  * Documents can be loaded using `db.get(id)` in query and mutation functions.
43 |  *
44 |  * IDs are just strings at runtime, but this type can be used to distinguish them from other
45 |  * strings when type checking.
46 |  *
47 |  * @typeParam TableName - A string literal type of the table name (like "users").
48 |  */
49 | export type Id<TableName extends TableNames | SystemTableNames> =
50 |   GenericId<TableName>;
51 | 
52 | /**
53 |  * A type describing your Convex data model.
54 |  *
55 |  * This type includes information about what tables you have, the type of
56 |  * documents stored in those tables, and the indexes defined on them.
57 |  *
58 |  * This type is used to parameterize methods like `queryGeneric` and
59 |  * `mutationGeneric` to make them type-safe.
60 |  */
61 | export type DataModel = DataModelFromSchemaDefinition<typeof schema>;
62 | 


--------------------------------------------------------------------------------
/convex/ingest/load.ts:
--------------------------------------------------------------------------------
 1 | "use node";
 2 | 
 3 | import { load } from "cheerio";
 4 | import { v } from "convex/values";
 5 | import { CheerioWebBaseLoader } from "langchain/document_loaders/web/cheerio";
 6 | import { CacheBackedEmbeddings } from "langchain/embeddings/cache_backed";
 7 | import { OpenAIEmbeddings } from "@langchain/openai";
 8 | OpenAIEmbeddings;
 9 | import { ConvexKVStore } from "@langchain/community/storage/convex";
10 | import { RecursiveCharacterTextSplitter } from "langchain/text_splitter";
11 | import { ConvexVectorStore } from "@langchain/community/vectorstores/convex";
12 | import { map } from "modern-async";
13 | import { internal } from "../_generated/api";
14 | import { internalAction } from "../_generated/server";
15 | 
16 | export const scrapeAndEmbedSite = internalAction({
17 |   args: {
18 |     sitemapUrl: v.string(),
19 |     limit: v.optional(v.number()),
20 |   },
21 |   handler: async (ctx, { sitemapUrl, limit }) => {
22 |     const response = await fetch(sitemapUrl);
23 |     const xml = await response.text();
24 |     const $ = load(xml, { xmlMode: true });
25 |     const urls = $("url > loc")
26 |       .map((_i, elem) => $(elem).text())
27 |       .get()
28 |       .slice(0, limit);
29 |     await map(urls, (url) =>
30 |       ctx.runAction(internal.ingest.load.fetchAndEmbedSingle, { url })
31 |     );
32 |   },
33 | });
34 | 
35 | export const fetchAndEmbedSingle = internalAction({
36 |   args: {
37 |     url: v.string(),
38 |   },
39 |   handler: async (ctx, { url }) => {
40 |     const loader = new CheerioWebBaseLoader(url);
41 |     const data = await loader.load();
42 |     const textSplitter = new RecursiveCharacterTextSplitter({
43 |       chunkSize: 1000,
44 |       chunkOverlap: 200,
45 |     });
46 | 
47 |     const splitDocs = await textSplitter.splitDocuments(data);
48 | 
49 |     const embeddings = new CacheBackedEmbeddings({
50 |       underlyingEmbeddings: new OpenAIEmbeddings(),
51 |       documentEmbeddingStore: new ConvexKVStore({ ctx }),
52 |     });
53 | 
54 |     await ConvexVectorStore.fromDocuments(splitDocs, embeddings, { ctx });
55 |   },
56 | });
57 | 


--------------------------------------------------------------------------------
/src/components/ui/button.tsx:
--------------------------------------------------------------------------------
 1 | import * as React from "react"
 2 | import { Slot } from "@radix-ui/react-slot"
 3 | import { cva, type VariantProps } from "class-variance-authority"
 4 | 
 5 | import { cn } from "@/lib/utils"
 6 | 
 7 | const buttonVariants = cva(
 8 |   "inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50",
 9 |   {
10 |     variants: {
11 |       variant: {
12 |         default:
13 |           "bg-primary text-primary-foreground shadow hover:bg-primary/90",
14 |         destructive:
15 |           "bg-destructive text-destructive-foreground shadow-sm hover:bg-destructive/90",
16 |         outline:
17 |           "border border-input bg-transparent shadow-sm hover:bg-accent hover:text-accent-foreground",
18 |         secondary:
19 |           "bg-secondary text-secondary-foreground shadow-sm hover:bg-secondary/80",
20 |         ghost: "hover:bg-accent hover:text-accent-foreground",
21 |         link: "text-primary underline-offset-4 hover:underline",
22 |       },
23 |       size: {
24 |         default: "h-9 px-4 py-2",
25 |         sm: "h-8 rounded-md px-3 text-xs",
26 |         lg: "h-10 rounded-md px-8",
27 |         icon: "h-9 w-9",
28 |       },
29 |     },
30 |     defaultVariants: {
31 |       variant: "default",
32 |       size: "default",
33 |     },
34 |   }
35 | )
36 | 
37 | export interface ButtonProps
38 |   extends React.ButtonHTMLAttributes<HTMLButtonElement>,
39 |     VariantProps<typeof buttonVariants> {
40 |   asChild?: boolean
41 | }
42 | 
43 | const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
44 |   ({ className, variant, size, asChild = false, ...props }, ref) => {
45 |     const Comp = asChild ? Slot : "button"
46 |     return (
47 |       <Comp
48 |         className={cn(buttonVariants({ variant, size, className }))}
49 |         ref={ref}
50 |         {...props}
51 |       />
52 |     )
53 |   }
54 | )
55 | Button.displayName = "Button"
56 | 
57 | export { Button, buttonVariants }
58 | 


--------------------------------------------------------------------------------
/tailwind.config.js:
--------------------------------------------------------------------------------
 1 | /** @type {import('tailwindcss').Config} */
 2 | module.exports = {
 3 |   darkMode: ["class"],
 4 |   content: ["./index.html", "./src/**/*.{js,ts,jsx,tsx}"],
 5 |   theme: {
 6 |     container: {
 7 |       center: true,
 8 |       padding: "2rem",
 9 |       screens: {
10 |         "2xl": "1400px",
11 |       },
12 |     },
13 |     extend: {
14 |       colors: {
15 |         border: "hsl(var(--border))",
16 |         input: "hsl(var(--input))",
17 |         ring: "hsl(var(--ring))",
18 |         background: "hsl(var(--background))",
19 |         foreground: "hsl(var(--foreground))",
20 |         primary: {
21 |           DEFAULT: "hsl(var(--primary))",
22 |           foreground: "hsl(var(--primary-foreground))",
23 |         },
24 |         secondary: {
25 |           DEFAULT: "hsl(var(--secondary))",
26 |           foreground: "hsl(var(--secondary-foreground))",
27 |         },
28 |         destructive: {
29 |           DEFAULT: "hsl(var(--destructive))",
30 |           foreground: "hsl(var(--destructive-foreground))",
31 |         },
32 |         muted: {
33 |           DEFAULT: "hsl(var(--muted))",
34 |           foreground: "hsl(var(--muted-foreground))",
35 |         },
36 |         accent: {
37 |           DEFAULT: "hsl(var(--accent))",
38 |           foreground: "hsl(var(--accent-foreground))",
39 |         },
40 |         popover: {
41 |           DEFAULT: "hsl(var(--popover))",
42 |           foreground: "hsl(var(--popover-foreground))",
43 |         },
44 |         card: {
45 |           DEFAULT: "hsl(var(--card))",
46 |           foreground: "hsl(var(--card-foreground))",
47 |         },
48 |       },
49 |       borderRadius: {
50 |         lg: "var(--radius)",
51 |         md: "calc(var(--radius) - 2px)",
52 |         sm: "calc(var(--radius) - 4px)",
53 |       },
54 |       keyframes: {
55 |         "accordion-down": {
56 |           from: { height: 0 },
57 |           to: { height: "var(--radix-accordion-content-height)" },
58 |         },
59 |         "accordion-up": {
60 |           from: { height: "var(--radix-accordion-content-height)" },
61 |           to: { height: 0 },
62 |         },
63 |       },
64 |       animation: {
65 |         "accordion-down": "accordion-down 0.2s ease-out",
66 |         "accordion-up": "accordion-up 0.2s ease-out",
67 |       },
68 |     },
69 |   },
70 |   plugins: [require("tailwindcss-animate")],
71 | };
72 | 


--------------------------------------------------------------------------------
/convex/README.md:
--------------------------------------------------------------------------------
 1 | # Welcome to your Convex functions directory!
 2 | 
 3 | Write your Convex functions here. See
 4 | https://docs.convex.dev/using/writing-convex-functions for more.
 5 | 
 6 | A query function that takes two arguments looks like:
 7 | 
 8 | ```ts
 9 | // functions.js
10 | import { query } from "./_generated/server";
11 | import { v } from "convex/values";
12 | 
13 | export const myQueryFunction = query({
14 |   // Validators for arguments.
15 |   args: {
16 |     first: v.number(),
17 |     second: v.string(),
18 |   },
19 | 
20 |   // Function implementation.
21 |   handler: async (ctx, args) => {
22 |     // Read the database as many times as you need here.
23 |     // See https://docs.convex.dev/database/reading-data.
24 |     const documents = await ctx.db.query("tablename").collect();
25 | 
26 |     // Arguments passed from the client are properties of the args object.
27 |     console.log(args.first, args.second);
28 | 
29 |     // Write arbitrary JavaScript here: filter, aggregate, build derived data,
30 |     // remove non-public properties, or create new objects.
31 |     return documents;
32 |   },
33 | });
34 | ```
35 | 
36 | Using this query function in a React component looks like:
37 | 
38 | ```ts
39 | const data = useQuery(api.functions.myQueryFunction, {
40 |   first: 10,
41 |   second: "hello",
42 | });
43 | ```
44 | 
45 | A mutation function looks like:
46 | 
47 | ```ts
48 | // functions.js
49 | import { mutation } from "./_generated/server";
50 | import { v } from "convex/values";
51 | 
52 | export const myMutationFunction = mutation({
53 |   // Validators for arguments.
54 |   args: {
55 |     first: v.string(),
56 |     second: v.string(),
57 |   },
58 | 
59 |   // Function implementation.
60 |   handler: async (ctx, args) => {
61 |     // Insert or modify documents in the database here.
62 |     // Mutations can also read from the database like queries.
63 |     // See https://docs.convex.dev/database/writing-data.
64 |     const message = { body: args.first, author: args.second };
65 |     const id = await ctx.db.insert("messages", message);
66 | 
67 |     // Optionally, return a value from your mutation.
68 |     return await ctx.db.get(id);
69 |   },
70 | });
71 | ```
72 | 
73 | Using this mutation function in a React component looks like:
74 | 
75 | ```ts
76 | const mutation = useMutation(api.functions.myMutationFunction);
77 | function handleButtonPress() {
78 |   // fire and forget, the most common way to use mutations
79 |   mutation({ first: "Hello!", second: "me" });
80 |   // OR
81 |   // use the result once the mutation has completed
82 |   mutation({ first: "Hello!", second: "me" }).then((result) =>
83 |     console.log(result)
84 |   );
85 | }
86 | ```
87 | 
88 | Use the Convex CLI to push your functions to a deployment. See everything
89 | the Convex CLI can do by running `npx convex -h` in your project root
90 | directory. To learn more, launch the docs with `npx convex docs`.
91 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "convex-ai-chat-langchain",
 3 |   "private": true,
 4 |   "version": "0.0.0",
 5 |   "type": "module",
 6 |   "scripts": {
 7 |     "dev": "npm-run-all --parallel dev:frontend dev:backend",
 8 |     "dev:frontend": "vite --open",
 9 |     "dev:backend": "convex dev",
10 |     "predev": "convex dev --until-success && convex dashboard",
11 |     "build": "tsc && vite build",
12 |     "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
13 |     "preview": "vite preview"
14 |   },
15 |   "dependencies": {
16 |     "@hookform/resolvers": "^3.3.2",
17 |     "@langchain/community": "^0.2.20",
18 |     "@radix-ui/react-accordion": "^1.1.2",
19 |     "@radix-ui/react-alert-dialog": "^1.0.5",
20 |     "@radix-ui/react-aspect-ratio": "^1.0.3",
21 |     "@radix-ui/react-avatar": "^1.0.4",
22 |     "@radix-ui/react-checkbox": "^1.0.4",
23 |     "@radix-ui/react-collapsible": "^1.0.3",
24 |     "@radix-ui/react-context-menu": "^2.1.5",
25 |     "@radix-ui/react-dialog": "^1.0.5",
26 |     "@radix-ui/react-dropdown-menu": "^2.0.6",
27 |     "@radix-ui/react-hover-card": "^1.0.7",
28 |     "@radix-ui/react-icons": "^1.3.0",
29 |     "@radix-ui/react-label": "^2.0.2",
30 |     "@radix-ui/react-menubar": "^1.0.4",
31 |     "@radix-ui/react-navigation-menu": "^1.1.4",
32 |     "@radix-ui/react-popover": "^1.0.7",
33 |     "@radix-ui/react-progress": "^1.0.3",
34 |     "@radix-ui/react-radio-group": "^1.1.3",
35 |     "@radix-ui/react-scroll-area": "^1.0.5",
36 |     "@radix-ui/react-select": "^2.0.0",
37 |     "@radix-ui/react-separator": "^1.0.3",
38 |     "@radix-ui/react-slider": "^1.1.2",
39 |     "@radix-ui/react-slot": "^1.0.2",
40 |     "@radix-ui/react-switch": "^1.0.3",
41 |     "@radix-ui/react-tabs": "^1.0.4",
42 |     "@radix-ui/react-toast": "^1.1.5",
43 |     "@radix-ui/react-toggle": "^1.0.3",
44 |     "@radix-ui/react-tooltip": "^1.0.7",
45 |     "cheerio": "^1.0.0-rc.12",
46 |     "class-variance-authority": "^0.7.0",
47 |     "clsx": "^2.0.0",
48 |     "cmdk": "^0.2.0",
49 |     "convex": "^1.13.2",
50 |     "date-fns": "^2.30.0",
51 |     "langchain": "^0.2.11",
52 |     "modern-async": "^1.1.4",
53 |     "openai": "^4.19.0",
54 |     "react": "^18.2.0",
55 |     "react-day-picker": "^8.9.1",
56 |     "react-dom": "^18.2.0",
57 |     "react-hook-form": "^7.47.0",
58 |     "tailwind-merge": "^1.14.0",
59 |     "tailwindcss-animate": "^1.0.7",
60 |     "zod": "^3.22.4"
61 |   },
62 |   "devDependencies": {
63 |     "@types/node": "^20.7.0",
64 |     "@types/react": "^18.2.21",
65 |     "@types/react-dom": "^18.2.7",
66 |     "@typescript-eslint/eslint-plugin": "^6.7.0",
67 |     "@typescript-eslint/parser": "^6.7.0",
68 |     "@vitejs/plugin-react": "^4.0.4",
69 |     "autoprefixer": "^10.4.16",
70 |     "eslint": "^8.49.0",
71 |     "eslint-plugin-react-hooks": "^4.6.0",
72 |     "eslint-plugin-react-refresh": "^0.4.3",
73 |     "npm-run-all": "^4.1.5",
74 |     "postcss": "^8.4.30",
75 |     "tailwindcss": "^3.3.3",
76 |     "typescript": "^5.2.2",
77 |     "vite": "^4.4.9"
78 |   }
79 | }
80 | 


--------------------------------------------------------------------------------
/convex/_generated/server.js:
--------------------------------------------------------------------------------
 1 | /* eslint-disable */
 2 | /**
 3 |  * Generated utilities for implementing server-side Convex query and mutation functions.
 4 |  *
 5 |  * THIS CODE IS AUTOMATICALLY GENERATED.
 6 |  *
 7 |  * Generated by convex@1.13.2.
 8 |  * To regenerate, run `npx convex dev`.
 9 |  * @module
10 |  */
11 | 
12 | import {
13 |   actionGeneric,
14 |   httpActionGeneric,
15 |   queryGeneric,
16 |   mutationGeneric,
17 |   internalActionGeneric,
18 |   internalMutationGeneric,
19 |   internalQueryGeneric,
20 | } from "convex/server";
21 | 
22 | /**
23 |  * Define a query in this Convex app's public API.
24 |  *
25 |  * This function will be allowed to read your Convex database and will be accessible from the client.
26 |  *
27 |  * @param func - The query function. It receives a {@link QueryCtx} as its first argument.
28 |  * @returns The wrapped query. Include this as an `export` to name it and make it accessible.
29 |  */
30 | export const query = queryGeneric;
31 | 
32 | /**
33 |  * Define a query that is only accessible from other Convex functions (but not from the client).
34 |  *
35 |  * This function will be allowed to read from your Convex database. It will not be accessible from the client.
36 |  *
37 |  * @param func - The query function. It receives a {@link QueryCtx} as its first argument.
38 |  * @returns The wrapped query. Include this as an `export` to name it and make it accessible.
39 |  */
40 | export const internalQuery = internalQueryGeneric;
41 | 
42 | /**
43 |  * Define a mutation in this Convex app's public API.
44 |  *
45 |  * This function will be allowed to modify your Convex database and will be accessible from the client.
46 |  *
47 |  * @param func - The mutation function. It receives a {@link MutationCtx} as its first argument.
48 |  * @returns The wrapped mutation. Include this as an `export` to name it and make it accessible.
49 |  */
50 | export const mutation = mutationGeneric;
51 | 
52 | /**
53 |  * Define a mutation that is only accessible from other Convex functions (but not from the client).
54 |  *
55 |  * This function will be allowed to modify your Convex database. It will not be accessible from the client.
56 |  *
57 |  * @param func - The mutation function. It receives a {@link MutationCtx} as its first argument.
58 |  * @returns The wrapped mutation. Include this as an `export` to name it and make it accessible.
59 |  */
60 | export const internalMutation = internalMutationGeneric;
61 | 
62 | /**
63 |  * Define an action in this Convex app's public API.
64 |  *
65 |  * An action is a function which can execute any JavaScript code, including non-deterministic
66 |  * code and code with side-effects, like calling third-party services.
67 |  * They can be run in Convex's JavaScript environment or in Node.js using the "use node" directive.
68 |  * They can interact with the database indirectly by calling queries and mutations using the {@link ActionCtx}.
69 |  *
70 |  * @param func - The action. It receives an {@link ActionCtx} as its first argument.
71 |  * @returns The wrapped action. Include this as an `export` to name it and make it accessible.
72 |  */
73 | export const action = actionGeneric;
74 | 
75 | /**
76 |  * Define an action that is only accessible from other Convex functions (but not from the client).
77 |  *
78 |  * @param func - The function. It receives an {@link ActionCtx} as its first argument.
79 |  * @returns The wrapped function. Include this as an `export` to name it and make it accessible.
80 |  */
81 | export const internalAction = internalActionGeneric;
82 | 
83 | /**
84 |  * Define a Convex HTTP action.
85 |  *
86 |  * @param func - The function. It receives an {@link ActionCtx} as its first argument, and a `Request` object
87 |  * as its second.
88 |  * @returns The wrapped endpoint function. Route a URL path to this function in `convex/http.js`.
89 |  */
90 | export const httpAction = httpActionGeneric;
91 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
  1 | # AI Chat using LangChain and Convex
  2 | 
  3 | An example of building AI-powered chat interface using
  4 | [LangChain](https://www.langchain.com/) and its Convex integration.
  5 | 
  6 | ![Screenshot of a website with AI chat modal open](./screenshot.png "AI chat UI")
  7 | 
  8 | ## Overview:
  9 | 
 10 | This app demonstrates how you can add a chat bot to an existing website, powered
 11 | by Convex and LangChain.
 12 | 
 13 | - The chat is trigged by a button in [`App.tsx`](./src/App.tsx)
 14 | - The chat frontend is all in [`src/aiChat`](./src/aiChat/index.tsx)
 15 | - An example of web scraping is in [`convex/ingest`](./convex/ingest/load.ts)
 16 | - The public endpoints for the backend are in
 17 |   [`convex/messages.ts`](./convex/messages.ts)
 18 | - The answering logic is in [`convex/serve.ts`](./convex/serve.ts)
 19 | 
 20 | ## Running the App
 21 | 
 22 | ```
 23 | npm install
 24 | npm run dev
 25 | ```
 26 | 
 27 | This will configure a Convex project if you don't already have one, open the
 28 | Convex dashboard and the web app running on `localhost`.
 29 | 
 30 | For the chat itself to work, you must configure the following environment
 31 | variable on the Convex dashboard:
 32 | 
 33 | - `OPENAI_API_KEY` set to an [OpenAI](https://platform.openai.com/) API key
 34 |   (should start with `sk-`)
 35 | 
 36 | You can change the LLM identifier `OPENAI_MODEL` in
 37 | [`convex/serve.ts`](./convex/serve.ts) to `"gpt-4-32k"` if you're paying for
 38 | OpenAI to improve the quality of responses.
 39 | 
 40 | # What is Convex?
 41 | 
 42 | [Convex](https://convex.dev) is a hosted backend platform with a built-in
 43 | database that lets you write your
 44 | [database schema](https://docs.convex.dev/database/schemas) and
 45 | [server functions](https://docs.convex.dev/functions) in
 46 | [TypeScript](https://docs.convex.dev/typescript). Server-side database
 47 | [queries](https://docs.convex.dev/functions/query-functions) automatically
 48 | [cache](https://docs.convex.dev/functions/query-functions#caching--reactivity)
 49 | and [subscribe](https://docs.convex.dev/client/react#reactivity) to data,
 50 | powering a
 51 | [realtime `useQuery` hook](https://docs.convex.dev/client/react#fetching-data)
 52 | in our [React client](https://docs.convex.dev/client/react). There are also
 53 | [Python](https://docs.convex.dev/client/python),
 54 | [Rust](https://docs.convex.dev/client/rust),
 55 | [ReactNative](https://docs.convex.dev/client/react-native), and
 56 | [Node](https://docs.convex.dev/client/javascript) clients, as well as a
 57 | straightforward
 58 | [HTTP API](https://github.com/get-convex/convex-js/blob/main/src/browser/http_client.ts#L40).
 59 | 
 60 | The database support
 61 | [NoSQL-style documents](https://docs.convex.dev/database/document-storage) with
 62 | [relationships](https://docs.convex.dev/database/document-ids) and
 63 | [custom indexes](https://docs.convex.dev/database/indexes/) (including on fields
 64 | in nested objects).
 65 | 
 66 | The [`query`](https://docs.convex.dev/functions/query-functions) and
 67 | [`mutation`](https://docs.convex.dev/functions/mutation-functions) server
 68 | functions have transactional, low latency access to the database and leverage
 69 | our [`v8` runtime](https://docs.convex.dev/functions/runtimes) with
 70 | [determinism guardrails](https://docs.convex.dev/functions/runtimes#using-randomness-and-time-in-queries-and-mutations)
 71 | to provide the strongest ACID guarantees on the market: immediate consistency,
 72 | serializable isolation, and automatic conflict resolution via
 73 | [optimistic multi-version concurrency control](https://docs.convex.dev/database/advanced/occ)
 74 | (OCC / MVCC).
 75 | 
 76 | The [`action` server functions](https://docs.convex.dev/functions/actions) have
 77 | access to external APIs and enable other side-effects and non-determinism in
 78 | either our [optimized `v8` runtime](https://docs.convex.dev/functions/runtimes)
 79 | or a more
 80 | [flexible `node` runtime](https://docs.convex.dev/functions/runtimes#nodejs-runtime).
 81 | 
 82 | Functions can run in the background via
 83 | [scheduling](https://docs.convex.dev/scheduling/scheduled-functions) and
 84 | [cron jobs](https://docs.convex.dev/scheduling/cron-jobs).
 85 | 
 86 | Development is cloud-first, with
 87 | [hot reloads for server function](https://docs.convex.dev/cli#run-the-convex-dev-server)
 88 | editing via the [CLI](https://docs.convex.dev/cli). There is a
 89 | [dashbord UI](https://docs.convex.dev/dashboard) to
 90 | [browse and edit data](https://docs.convex.dev/dashboard/deployments/data),
 91 | [edit environment variables](https://docs.convex.dev/production/environment-variables),
 92 | [view logs](https://docs.convex.dev/dashboard/deployments/logs),
 93 | [run server functions](https://docs.convex.dev/dashboard/deployments/functions),
 94 | and more.
 95 | 
 96 | There are built-in features for
 97 | [reactive pagination](https://docs.convex.dev/database/pagination),
 98 | [file storage](https://docs.convex.dev/file-storage),
 99 | [reactive search](https://docs.convex.dev/text-search),
100 | [https endpoints](https://docs.convex.dev/functions/http-actions) (for
101 | webhooks),
102 | [streaming import/export](https://docs.convex.dev/database/import-export/), and
103 | [runtime data validation](https://docs.convex.dev/database/schemas#validators)
104 | for [function arguments](https://docs.convex.dev/functions/args-validation) and
105 | [database data](https://docs.convex.dev/database/schemas#schema-validation).
106 | 
107 | Everything scales automatically, and it’s
108 | [free to start](https://www.convex.dev/plans).
109 | 


--------------------------------------------------------------------------------
/convex/_generated/server.d.ts:
--------------------------------------------------------------------------------
  1 | /* eslint-disable */
  2 | /**
  3 |  * Generated utilities for implementing server-side Convex query and mutation functions.
  4 |  *
  5 |  * THIS CODE IS AUTOMATICALLY GENERATED.
  6 |  *
  7 |  * Generated by convex@1.13.2.
  8 |  * To regenerate, run `npx convex dev`.
  9 |  * @module
 10 |  */
 11 | 
 12 | import {
 13 |   ActionBuilder,
 14 |   HttpActionBuilder,
 15 |   MutationBuilder,
 16 |   QueryBuilder,
 17 |   GenericActionCtx,
 18 |   GenericMutationCtx,
 19 |   GenericQueryCtx,
 20 |   GenericDatabaseReader,
 21 |   GenericDatabaseWriter,
 22 | } from "convex/server";
 23 | import type { DataModel } from "./dataModel.js";
 24 | 
 25 | /**
 26 |  * Define a query in this Convex app's public API.
 27 |  *
 28 |  * This function will be allowed to read your Convex database and will be accessible from the client.
 29 |  *
 30 |  * @param func - The query function. It receives a {@link QueryCtx} as its first argument.
 31 |  * @returns The wrapped query. Include this as an `export` to name it and make it accessible.
 32 |  */
 33 | export declare const query: QueryBuilder<DataModel, "public">;
 34 | 
 35 | /**
 36 |  * Define a query that is only accessible from other Convex functions (but not from the client).
 37 |  *
 38 |  * This function will be allowed to read from your Convex database. It will not be accessible from the client.
 39 |  *
 40 |  * @param func - The query function. It receives a {@link QueryCtx} as its first argument.
 41 |  * @returns The wrapped query. Include this as an `export` to name it and make it accessible.
 42 |  */
 43 | export declare const internalQuery: QueryBuilder<DataModel, "internal">;
 44 | 
 45 | /**
 46 |  * Define a mutation in this Convex app's public API.
 47 |  *
 48 |  * This function will be allowed to modify your Convex database and will be accessible from the client.
 49 |  *
 50 |  * @param func - The mutation function. It receives a {@link MutationCtx} as its first argument.
 51 |  * @returns The wrapped mutation. Include this as an `export` to name it and make it accessible.
 52 |  */
 53 | export declare const mutation: MutationBuilder<DataModel, "public">;
 54 | 
 55 | /**
 56 |  * Define a mutation that is only accessible from other Convex functions (but not from the client).
 57 |  *
 58 |  * This function will be allowed to modify your Convex database. It will not be accessible from the client.
 59 |  *
 60 |  * @param func - The mutation function. It receives a {@link MutationCtx} as its first argument.
 61 |  * @returns The wrapped mutation. Include this as an `export` to name it and make it accessible.
 62 |  */
 63 | export declare const internalMutation: MutationBuilder<DataModel, "internal">;
 64 | 
 65 | /**
 66 |  * Define an action in this Convex app's public API.
 67 |  *
 68 |  * An action is a function which can execute any JavaScript code, including non-deterministic
 69 |  * code and code with side-effects, like calling third-party services.
 70 |  * They can be run in Convex's JavaScript environment or in Node.js using the "use node" directive.
 71 |  * They can interact with the database indirectly by calling queries and mutations using the {@link ActionCtx}.
 72 |  *
 73 |  * @param func - The action. It receives an {@link ActionCtx} as its first argument.
 74 |  * @returns The wrapped action. Include this as an `export` to name it and make it accessible.
 75 |  */
 76 | export declare const action: ActionBuilder<DataModel, "public">;
 77 | 
 78 | /**
 79 |  * Define an action that is only accessible from other Convex functions (but not from the client).
 80 |  *
 81 |  * @param func - The function. It receives an {@link ActionCtx} as its first argument.
 82 |  * @returns The wrapped function. Include this as an `export` to name it and make it accessible.
 83 |  */
 84 | export declare const internalAction: ActionBuilder<DataModel, "internal">;
 85 | 
 86 | /**
 87 |  * Define an HTTP action.
 88 |  *
 89 |  * This function will be used to respond to HTTP requests received by a Convex
 90 |  * deployment if the requests matches the path and method where this action
 91 |  * is routed. Be sure to route your action in `convex/http.js`.
 92 |  *
 93 |  * @param func - The function. It receives an {@link ActionCtx} as its first argument.
 94 |  * @returns The wrapped function. Import this function from `convex/http.js` and route it to hook it up.
 95 |  */
 96 | export declare const httpAction: HttpActionBuilder;
 97 | 
 98 | /**
 99 |  * A set of services for use within Convex query functions.
100 |  *
101 |  * The query context is passed as the first argument to any Convex query
102 |  * function run on the server.
103 |  *
104 |  * This differs from the {@link MutationCtx} because all of the services are
105 |  * read-only.
106 |  */
107 | export type QueryCtx = GenericQueryCtx<DataModel>;
108 | 
109 | /**
110 |  * A set of services for use within Convex mutation functions.
111 |  *
112 |  * The mutation context is passed as the first argument to any Convex mutation
113 |  * function run on the server.
114 |  */
115 | export type MutationCtx = GenericMutationCtx<DataModel>;
116 | 
117 | /**
118 |  * A set of services for use within Convex action functions.
119 |  *
120 |  * The action context is passed as the first argument to any Convex action
121 |  * function run on the server.
122 |  */
123 | export type ActionCtx = GenericActionCtx<DataModel>;
124 | 
125 | /**
126 |  * An interface to read from the database within Convex query functions.
127 |  *
128 |  * The two entry points are {@link DatabaseReader.get}, which fetches a single
129 |  * document by its {@link Id}, or {@link DatabaseReader.query}, which starts
130 |  * building a query.
131 |  */
132 | export type DatabaseReader = GenericDatabaseReader<DataModel>;
133 | 
134 | /**
135 |  * An interface to read from and write to the database within Convex mutation
136 |  * functions.
137 |  *
138 |  * Convex guarantees that all writes within a single mutation are
139 |  * executed atomically, so you never have to worry about partial writes leaving
140 |  * your data in an inconsistent state. See [the Convex Guide](https://docs.convex.dev/understanding/convex-fundamentals/functions#atomicity-and-optimistic-concurrency-control)
141 |  * for the guarantees Convex provides your functions.
142 |  */
143 | export type DatabaseWriter = GenericDatabaseWriter<DataModel>;
144 | 


--------------------------------------------------------------------------------
/src/aiChat/index.tsx:
--------------------------------------------------------------------------------
  1 | import {
  2 |   ConvexProvider,
  3 |   ConvexReactClient,
  4 |   useMutation,
  5 |   useQuery,
  6 | } from "convex/react";
  7 | import {
  8 |   FormEvent,
  9 |   ReactNode,
 10 |   useCallback,
 11 |   useEffect,
 12 |   useMemo,
 13 |   useRef,
 14 |   useState,
 15 | } from "react";
 16 | import { createPortal } from "react-dom";
 17 | import { api } from "../../convex/_generated/api.js";
 18 | import { CloseIcon } from "./CloseIcon.js";
 19 | import { InfoCircled } from "./InfoCircled.js";
 20 | import { SendIcon } from "./SendIcon.js";
 21 | import { SizeIcon } from "./SizeIcon.js";
 22 | import { TrashIcon } from "./TrashIcon.js";
 23 | 
 24 | export function ConvexAiChat({
 25 |   convexUrl,
 26 |   infoMessage,
 27 |   name,
 28 |   welcomeMessage,
 29 |   renderTrigger,
 30 | }: {
 31 |   convexUrl: string;
 32 |   name: string;
 33 |   infoMessage: ReactNode;
 34 |   welcomeMessage: string;
 35 |   renderTrigger: (onClick: () => void) => ReactNode;
 36 | }) {
 37 |   const [hasOpened, setHasOpened] = useState(false);
 38 |   const [dialogOpen, setDialogOpen] = useState(false);
 39 | 
 40 |   const handleCloseDialog = useCallback(() => {
 41 |     setDialogOpen(false);
 42 |   }, []);
 43 | 
 44 |   return (
 45 |     <>
 46 |       {renderTrigger(() => {
 47 |         setHasOpened(true);
 48 |         setDialogOpen(!dialogOpen);
 49 |       })}
 50 |       {hasOpened
 51 |         ? createPortal(
 52 |             <ConvexAiChatDialog
 53 |               convexUrl={convexUrl}
 54 |               infoMessage={infoMessage}
 55 |               isOpen={dialogOpen}
 56 |               name={name}
 57 |               welcomeMessage={welcomeMessage}
 58 |               onClose={handleCloseDialog}
 59 |             />,
 60 |             document.body
 61 |           )
 62 |         : null}
 63 |     </>
 64 |   );
 65 | }
 66 | 
 67 | export function ConvexAiChatDialog({
 68 |   convexUrl,
 69 |   infoMessage,
 70 |   isOpen,
 71 |   name,
 72 |   welcomeMessage,
 73 |   onClose,
 74 | }: {
 75 |   convexUrl: string;
 76 |   infoMessage: ReactNode;
 77 |   isOpen: boolean;
 78 |   name: string;
 79 |   welcomeMessage: string;
 80 |   onClose: () => void;
 81 | }) {
 82 |   const client = useMemo(() => new ConvexReactClient(convexUrl), [convexUrl]);
 83 | 
 84 |   return (
 85 |     <ConvexProvider client={client}>
 86 |       <Dialog
 87 |         infoMessage={infoMessage}
 88 |         isOpen={isOpen}
 89 |         name={name}
 90 |         welcomeMessage={welcomeMessage}
 91 |         onClose={onClose}
 92 |       />
 93 |     </ConvexProvider>
 94 |   );
 95 | }
 96 | 
 97 | export function Dialog({
 98 |   infoMessage,
 99 |   isOpen,
100 |   name,
101 |   welcomeMessage,
102 |   onClose,
103 | }: {
104 |   infoMessage: ReactNode;
105 |   isOpen: boolean;
106 |   name: string;
107 |   welcomeMessage: string;
108 |   onClose: () => void;
109 | }) {
110 |   const sessionId = useSessionId();
111 |   const remoteMessages = useQuery(api.messages.list, { sessionId });
112 |   const messages = useMemo(
113 |     () =>
114 |       [{ isViewer: false, text: welcomeMessage, _id: "0" }].concat(
115 |         (remoteMessages ?? []) as {
116 |           isViewer: boolean;
117 |           text: string;
118 |           _id: string;
119 |         }[]
120 |       ),
121 |     [remoteMessages, welcomeMessage]
122 |   );
123 |   const sendMessage = useMutation(api.messages.send);
124 |   const clearMesages = useMutation(api.messages.clear);
125 | 
126 |   const [expanded, setExpanded] = useState(false);
127 |   const [isScrolled, setScrolled] = useState(false);
128 | 
129 |   const [input, setInput] = useState("");
130 | 
131 |   const handleExpand = () => {
132 |     setExpanded(!expanded);
133 |     setScrolled(false);
134 |   };
135 | 
136 |   const handleSend = async (event: FormEvent) => {
137 |     event.preventDefault();
138 |     await sendMessage({ message: input, sessionId });
139 |     setInput("");
140 |     setScrolled(false);
141 |   };
142 | 
143 |   const handleClearMessages = async () => {
144 |     await clearMesages({ sessionId });
145 |     setScrolled(false);
146 |   };
147 | 
148 |   const listRef = useRef<HTMLDivElement>(null);
149 | 
150 |   useEffect(() => {
151 |     if (isScrolled) {
152 |       return;
153 |     }
154 |     // Using `setTimeout` to make sure scrollTo works on button click in Chrome
155 |     setTimeout(() => {
156 |       listRef.current?.scrollTo({
157 |         top: listRef.current.scrollHeight,
158 |         behavior: "smooth",
159 |       });
160 |     }, 0);
161 |   }, [messages, isScrolled]);
162 | 
163 |   return (
164 |     <div
165 |       className={
166 |         (isOpen ? "fixed" : "hidden") +
167 |         " rounded-xl flex flex-col bg-white dark:bg-black text-black dark:text-white " +
168 |         "m-4 right-0 bottom-0 max-w-[calc(100%-2rem)] overflow-hidden transition-all " +
169 |         "shadow-[0px_5px_40px_rgba(0,0,0,0.16),0_20px_25px_-5px_rgb(0,0,0,0.1)] " +
170 |         "dark:shadow-[0px_5px_40px_rgba(0,0,0,0.36),0_20px_25px_-5px_rgb(0,0,0,0.3)] " +
171 |         (expanded
172 |           ? "left-0 top-0 z-[1000]"
173 |           : "w-full sm:max-w-[25rem] sm:min-w-[25rem] h-[30rem]")
174 |       }
175 |     >
176 |       <div className="flex justify-end">
177 |         <button
178 |           className="group border-none bg-transparent p-0 pt-2 px-2 cursor-pointer hover:text-neutral-500 dark:hover:text-neutral-300"
179 |           onClick={() => void handleClearMessages()}
180 |         >
181 |           <InfoCircled className="h-5 w-5" />
182 |           <span
183 |             className={
184 |               "invisible absolute z-50 cursor-auto group-hover:visible text-base text-black dark:text-white " +
185 |               "rounded-md shadow-[0px_5px_12px_rgba(0,0,0,0.32)] p-2 bg-white dark:bg-neutral-700 top-12 right-8 left-8 text-center"
186 |             }
187 |           >
188 |             {infoMessage}
189 |           </span>
190 |         </button>
191 |         <button
192 |           className="border-none bg-transparent p-0 pt-2 px-2 cursor-pointer hover:text-neutral-500 dark:hover:text-neutral-300"
193 |           onClick={() => void handleClearMessages()}
194 |         >
195 |           <TrashIcon className="h-5 w-5" />
196 |         </button>
197 |         <button
198 |           className="border-none bg-transparent p-0 pt-2 px-2 cursor-pointer hover:text-neutral-500 dark:hover:text-neutral-300"
199 |           onClick={handleExpand}
200 |         >
201 |           <SizeIcon className="h-5 w-5" />
202 |         </button>
203 |         <button
204 |           className="border-none bg-transparent p-0 pt-2 px-2 cursor-pointer hover:text-neutral-500 dark:hover:text-neutral-300"
205 |           onClick={onClose}
206 |         >
207 |           <CloseIcon className="h-5 w-5" />
208 |         </button>
209 |       </div>
210 |       <div
211 |         className="flex-grow overflow-scroll gap-2 flex flex-col mx-2 pb-2 rounded-lg"
212 |         ref={listRef}
213 |         onWheel={() => {
214 |           setScrolled(true);
215 |         }}
216 |       >
217 |         {remoteMessages === undefined ? (
218 |           <>
219 |             <div className="animate-pulse rounded-md bg-black/10 h-5" />
220 |             <div className="animate-pulse rounded-md bg-black/10 h-9" />
221 |           </>
222 |         ) : (
223 |           messages.map((message) => (
224 |             <div key={message._id}>
225 |               <div
226 |                 className={
227 |                   "text-neutral-400 text-sm " +
228 |                   (message.isViewer && !expanded ? "text-right" : "")
229 |                 }
230 |               >
231 |                 {message.isViewer ? <>You</> : <>{name}</>}
232 |               </div>
233 |               {message.text === "" ? (
234 |                 <div className="animate-pulse rounded-md bg-black/10 h-9" />
235 |               ) : (
236 |                 <div
237 |                   className={
238 |                     "w-full rounded-xl px-3 py-2 whitespace-pre-wrap " +
239 |                     (message.isViewer
240 |                       ? "bg-neutral-200 dark:bg-neutral-800 "
241 |                       : "bg-neutral-100 dark:bg-neutral-900 ") +
242 |                     (message.isViewer && !expanded
243 |                       ? "rounded-tr-none"
244 |                       : "rounded-tl-none")
245 |                   }
246 |                 >
247 |                   {message.text}
248 |                 </div>
249 |               )}
250 |             </div>
251 |           ))
252 |         )}
253 |       </div>
254 |       <form
255 |         className="border-t-neutral-200 dark:border-t-neutral-800 border-solid border-0 border-t-[1px] flex"
256 |         onSubmit={(event) => void handleSend(event)}
257 |       >
258 |         <input
259 |           className="w-full bg-white dark:bg-black border-none text-[1rem] pl-4 py-3 outline-none"
260 |           autoFocus
261 |           name="message"
262 |           placeholder="Send a message"
263 |           value={input}
264 |           onChange={(event) => setInput(event.target.value)}
265 |         />
266 |         <button
267 |           disabled={input === ""}
268 |           className="bg-transparent border-0 px-4 py-3 enabled:cursor-pointer enabled:hover:text-sky-500"
269 |         >
270 |           <SendIcon className="w-5 h-5" />
271 |         </button>
272 |       </form>
273 |     </div>
274 |   );
275 | }
276 | 
277 | const STORE = (typeof window === "undefined" ? null : window)?.sessionStorage;
278 | const STORE_KEY = "ConvexSessionId";
279 | 
280 | function useSessionId() {
281 |   const [sessionId] = useState(
282 |     () => STORE?.getItem(STORE_KEY) ?? crypto.randomUUID()
283 |   );
284 | 
285 |   // Get or set the ID from our desired storage location, whenever it changes.
286 |   useEffect(() => {
287 |     STORE?.setItem(STORE_KEY, sessionId);
288 |   }, [sessionId]);
289 | 
290 |   return sessionId;
291 | }
292 | 


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