d7107c107d
* Reorganize the examples folder * Add two mcp server examples. A local filesystem server and a simple 'starter' server.
79 lines
2.1 KiB
TypeScript
79 lines
2.1 KiB
TypeScript
import { Arcade } from "@arcadeai/arcadejs";
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import {
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GmailCreateDraft,
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GmailGetMessage,
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GmailGetThread,
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GmailSearch,
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GmailSendMessage,
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} from "@langchain/community/tools/gmail";
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import type { StructuredTool } from "@langchain/core/tools";
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import { createReactAgent } from "@langchain/langgraph/prebuilt";
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import { ChatOpenAI } from "@langchain/openai";
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// Initialize Arcade with API key from environment
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const arcade = new Arcade();
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// Replace this with your application's user ID (e.g. email address, UUID, etc.)
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const USER_ID = "user@example.com";
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// Start the authorization process for Gmail
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// see all possible gmail scopes here:
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// https://developers.google.com/gmail/api/auth/scopes
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const authResponse = await arcade.auth.start(USER_ID, "google", {
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scopes: ["https://www.googleapis.com/auth/gmail.readonly"],
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});
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// Prompt the user to authorize if not already completed
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if (authResponse.status !== "completed") {
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console.log("Please authorize the application in your browser:");
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console.log(authResponse.url);
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}
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// Wait for the user to complete the authorization process, if necessary...
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const completedAuth = await arcade.auth.waitForCompletion(authResponse);
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if (!completedAuth.context?.token) {
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throw new Error("Failed to get authorization token");
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}
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// Get Gmail tools with credentials
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const gmailParam = {
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credentials: {
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accessToken: completedAuth.context.token,
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},
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};
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const tools: StructuredTool[] = [
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new GmailCreateDraft(gmailParam),
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new GmailGetMessage(gmailParam),
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new GmailGetThread(gmailParam),
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new GmailSearch(gmailParam),
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new GmailSendMessage(gmailParam),
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];
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// Initialize the language model and create an agent
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const llm = new ChatOpenAI({ model: "gpt-4o" });
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const agent_executor = createReactAgent({
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llm,
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tools,
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});
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// Define the user query
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const exampleQuery = "Read my latest emails and summarize them.";
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// Execute the agent with the user query
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const events = await agent_executor.stream(
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{
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messages: [
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{
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role: "user",
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content: exampleQuery,
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},
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],
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},
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{
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streamMode: "values",
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},
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);
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for await (const event of events) {
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console.log(event.messages[event.messages.length - 1]);
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}
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