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import { MeshAPI } from "meshapi-node-sdk";
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import fs from "fs";
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const client = new MeshAPI({ baseUrl: "https://api.meshapi.ai", token: "rsk_..." });
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const upload = await client.rag.uploadFile({
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  file_name: "handbook.pdf",
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  mime_type: "application/pdf",
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  content: fs.readFileSync("handbook.pdf"),
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});
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console.log("File ID:", upload.file_id);

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const upload = await client.rag.initUpload({
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  file_name: "handbook.pdf",
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  mime_type: "application/pdf",
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  embed: false,
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});
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// PUT bytes directly to the signed URL (no auth header needed)
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await fetch(upload.signed_url, {
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  method: "PUT",
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  body: fs.readFileSync("handbook.pdf"),
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  headers: { "Content-Type": "application/pdf" },
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});

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const resp = await client.rag.embed({ file_ids: [upload.file_id] });
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for (const r of resp.results) {
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  console.log(r.file_id, r.embedding_status);
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}

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const sleep = (ms: number) => new Promise((r) => setTimeout(r, ms));
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while (true) {
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  const status = await client.rag.get(upload.file_id);
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  if (status.embedding_status === "ready") break;
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  if (status.embedding_status === "failed") {
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    throw new Error(`Embedding failed: ${status.last_error_code}`);
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  }
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  await sleep(3_000);
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}

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const results = await client.rag.search({
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  query: "What is the refund policy?",
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  top_k: 5,
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  file_ids: [upload.file_id], // omit to search all files
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});
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for (const r of results.results) {
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  console.log(`[${r.score.toFixed(3)}] ${r.text}`);
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}

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const list = await client.rag.list({ limit: 50 });
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console.log(`${list.total} total files`);
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for (const f of list.files) {
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  console.log(f.file_id, f.upload_status, f.embedding_status);
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}

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const results = await client.rag.search({
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  query: "What is the refund policy?",
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  top_k: 3,
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});
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const context = results.results.map((r) => r.text).join("\n\n");
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const reply = await client.chat.completions.create({
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  model: "openai/gpt-4o-mini",
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  messages: [
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    { role: "system", content: `Answer using only the context below.\n\n${context}` },
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    { role: "user",   content: "What is the refund policy?" },
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  ],
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});
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console.log(reply.choices[0]?.message.content);