Wikipedia를 검색하고 찾은 정보를 바탕으로 질문에 답할 수 있는 AI 에이전트를 만들어 보겠습니다. 이 ReAct(Reason and Act) 에이전트는 Google Generative AI API를 사용하여 쿼리를 처리하고 응답을 생성합니다. 우리 대리인은 다음을 수행할 수 있습니다.
ReAct Agent는 Reflection-Action 주기를 따르는 특정 유형의 에이전트입니다. 사용 가능한 정보와 수행할 수 있는 작업을 기반으로 현재 작업을 반영한 다음 수행할 작업 또는 작업 종료 여부를 결정합니다.
ReAct 에이전트에는 세 가지 주요 상태가 있습니다.
각 상태를 강조하면서 ReAct Agent를 단계별로 구축해 보겠습니다.
먼저 프로젝트를 설정하고 종속 항목을 설치합니다.
mkdir react-agent-project cd react-agent-project npm init -y npm install axios dotenv @google/generative-ai
프로젝트 루트에 .env 파일을 만듭니다.
GOOGLE_AI_API_KEY=your_api_key_here
다음 콘텐츠로 Tools.js를 만듭니다.
const axios = require("axios"); class Tools { static async wikipedia(q) { try { const response = await axios.get("https://en.wikipedia.org/w/api.php", { params: { action: "query", list: "search", srsearch: q, srwhat: "text", format: "json", srlimit: 4, }, }); const results = await Promise.all( response.data.query.search.map(async (searchResult) => { const sectionResponse = await axios.get( "https://en.wikipedia.org/w/api.php", { params: { action: "parse", pageid: searchResult.pageid, prop: "sections", format: "json", }, }, ); const sections = Object.values( sectionResponse.data.parse.sections, ).map((section) => `${section.index}, ${section.line}`); return { pageTitle: searchResult.title, snippet: searchResult.snippet, pageId: searchResult.pageid, sections: sections, }; }), ); return results .map( (result) => `Snippet: ${result.snippet}\nPageId: ${result.pageId}\nSections: ${JSON.stringify(result.sections)}`, ) .join("\n\n"); } catch (error) { console.error("Error fetching from Wikipedia:", error); return "Error fetching data from Wikipedia"; } } static async wikipedia_with_pageId(pageId, sectionId) { if (sectionId) { const response = await axios.get("https://en.wikipedia.org/w/api.php", { params: { action: "parse", format: "json", pageid: parseInt(pageId), prop: "wikitext", section: parseInt(sectionId), disabletoc: 1, }, }); return Object.values(response.data.parse?.wikitext ?? {})[0]?.substring( 0, 25000, ); } else { const response = await axios.get("https://en.wikipedia.org/w/api.php", { params: { action: "query", pageids: parseInt(pageId), prop: "extracts", exintro: true, explaintext: true, format: "json", }, }); return Object.values(response.data?.query.pages)[0]?.extract; } } } module.exports = Tools;
다음 콘텐츠로 ReactAgent.js를 만듭니다.
require("dotenv").config(); const { GoogleGenerativeAI } = require("@google/generative-ai"); const Tools = require("./Tools"); const genAI = new GoogleGenerativeAI(process.env.GOOGLE_AI_API_KEY); class ReActAgent { constructor(query, functions) { this.query = query; this.functions = new Set(functions); this.state = "THOUGHT"; this._history = []; this.model = genAI.getGenerativeModel({ model: "gemini-1.5-flash", temperature: 2, }); } get history() { return this._history; } pushHistory(value) { this._history.push(`\n ${value}`); } async run() { this.pushHistory(`**Task: ${this.query} **`); try { return await this.step(); } catch (e) { if (e.message.includes("exhausted")) { return "Sorry, I'm exhausted, I can't process your request anymore. ><"; } return "Unable to process your request, please try again? ><"; } } async step() { const colors = { reset: "\x1b[0m", yellow: "\x1b[33m", red: "\x1b[31m", cyan: "\x1b[36m", }; console.log("===================================="); console.log( `Next Movement: ${ this.state === "THOUGHT" ? colors.yellow : this.state === "ACTION" ? colors.red : this.state === "ANSWER" ? colors.cyan : colors.reset }${this.state}${colors.reset}`, ); console.log(`Last Movement: ${this.history[this.history.length - 1]}`); console.log("===================================="); switch (this.state) { case "THOUGHT": await this.thought(); break; case "ACTION": await this.action(); break; case "ANSWER": await this.answer(); break; } } async promptModel(prompt) { const result = await this.model.generateContent(prompt); const response = await result.response; return response.text(); } async thought() { const availableFunctions = JSON.stringify(Array.from(this.functions)); const historyContext = this.history.join("\n"); const prompt = `Your task to FullFill ${this.query}. Context contains all the reflection you made so far and the ActionResult you collected. AvailableActions are functions you can call whenever you need more data. Context: "${historyContext}" << AvailableActions: "${availableFunctions}" << Task: "${this.query}" << Reflect uppon Your Task using Context, ActionResult and AvailableActions to find your next_step. print your next_step with a Thought or FullFill Your Task `; const thought = await this.promptModel(prompt); this.pushHistory(`\n **${thought.trim()}**`); if ( thought.toLowerCase().includes("fullfill") || thought.toLowerCase().includes("fulfill") ) { this.state = "ANSWER"; return await this.step(); } this.state = "ACTION"; return await this.step(); } async action() { const action = await this.decideAction(); this.pushHistory(`** Action: ${action} **`); const result = await this.executeFunctionCall(action); this.pushHistory(`** ActionResult: ${result} **`); this.state = "THOUGHT"; return await this.step(); } async decideAction() { const availableFunctions = JSON.stringify(Array.from(this.functions)); const historyContext = this.history; const prompt = `Reflect uppon the Thought, Query and AvailableActions ${historyContext[historyContext.length - 2]} Thought <<< ${historyContext[historyContext.length - 1]} Query: "${this.query}" AvailableActions: ${availableFunctions} output only the function,parametervalues separated by a comma. For example: "wikipedia,ronaldinho gaucho, 1450"`; const decision = await this.promptModel(prompt); return `${decision.replace(/`/g, "").trim()}`; } async executeFunctionCall(functionCall) { const [functionName, ...args] = functionCall.split(","); const func = Tools[functionName.trim()]; if (func) { return await func.call(null, ...args); } throw new Error(`Function ${functionName} not found`); } async answer() { const historyContext = this.history; const prompt = `Based on the following context, provide a complete, detailed and descriptive formated answer for the Following Task: ${this.query} . Context: ${historyContext} Task: "${this.query}"`; const finalAnswer = await this.promptModel(prompt); this.history.push(`Answer: ${this.finalAnswer}`); console.log("WE WILL ANSWER >>>>>>>", finalAnswer); return finalAnswer; } } module.exports = ReActAgent;
다음 콘텐츠로 index.js를 만듭니다.
const ReActAgent = require("./ReactAgent.js"); async function main() { const query = "What does England border with?"; const functions = [ [ "wikipedia", "params: query", "Semantic Search Wikipedia API for snippets, pageIds and sectionIds >> \n ex: Date brazil has been colonized? \n Brazil was colonized at 1500, pageId, sections : []", ], [ "wikipedia_with_pageId", "params : pageId, sectionId", "Search Wikipedia API for data using a pageId and a sectionIndex as params. \n ex: 1500, 1234 \n Section information about blablalbal", ], ]; const agent = new ReActAgent(query, functions); try { const result = await agent.run(); console.log("THE AGENT RETURN THE FOLLOWING >>>", result); } catch (e) { console.log("FAILED TO RUN T.T", e); } } main().catch(console.error);
Wikipedia와의 상호작용은 두 가지 주요 단계로 이루어집니다.
초기 검색(위키피디아 기능):
상세 검색(wikipedia_with_pageId 기능):
이 프로세스를 통해 상담원은 먼저 검색어와 관련된 주제의 개요를 확인한 다음 필요에 따라 특정 섹션을 더 자세히 살펴볼 수 있습니다.
위 내용은 nodeJS를 사용하여 처음부터 ReAct 에이전트 만들기(wikipedia 검색)의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!