exa-hello-world

# Exa Hello World ## Overview Minimal working examples demonstrating all core Exa search operations: basic search, search with contents, find similar, and get contents. Each example is runnable standalone. ## Prerequisites - `exa-js` SDK installed (`npm install exa-js`) - `EXA_API_KEY` environment variable set - Node.js 18+ with ES module support ## Instructions ### Step 1: Basic Search (Metadata Only) ```typescript import Exa from "exa-js"; const exa = new Exa(process.env.EXA_API_KEY); // Basic search returns URLs, titles, and scores — no page content const results = await exa.search("best practices for building RAG pipelines", { type: "auto", // auto | neural | keyword | fast | instant numResults: 5, }); for (const r of results.results) { console.log(`[${r.score.toFixed(2)}] ${r.title}`); console.log(` ${r.url}`); } ``` ### Step 2: Search with Contents ```typescript // searchAndContents returns text, highlights, and/or summary with each result const results = await exa.searchAndContents( "how transformers work in large language models", { type: "neural", numResults: 3, text: { maxCharacters: 1000 }, highlights: { maxCharacters: 500, query: "attention mechanism" }, summary: { query: "explain transformers simply" }, } ); for (const r of results.results) { console.log(`## ${r.title}`); console.log(`URL: ${r.url}`); console.log(`Summary: ${r.summary}`); console.log(`Text preview: ${r.text?.substring(0, 200)}...`); cons...