npm install @pageindex/sdk

import { PageIndexClient } from "@pageindex/sdk";
 
const client = new PageIndexClient({ apiKey: "YOUR_API_KEY" });

import { PageIndexClient } from "@pageindex/sdk";
import { readFileSync } from "fs";
 
const client = new PageIndexClient({ apiKey: "YOUR_API_KEY" });
 
// 1. Upload a document
const file = readFileSync("./2023-annual-report.pdf");
const { doc_id } = await client.api.submitDocument(file, "2023-annual-report.pdf");
console.log("Document ID:", doc_id);
 
// 2. Get tree structure (includes processing status)
const tree = await client.api.getTree(doc_id);
if (tree.status === "completed") {
  console.log("Tree:", tree.result);
}
 
// 3. Chat with the document
const response = await client.api.chatCompletions({
  messages: [{ role: "user", content: "What are the key findings?" }],
  doc_id,
});
console.log(response.choices[0].message.content);
 
// 4. Stream a response
const stream = await client.api.chatCompletions({
  messages: [{ role: "user", content: "Summarize this document" }],
  doc_id,
  stream: true,
});
for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content ?? "");
}

import { PageIndexClient, PageIndexError } from "@pageindex/sdk";
 
try {
  const doc = await client.api.getDocument("invalid-id");
} catch (error) {
  if (error instanceof PageIndexError) {
    console.log(error.code);       // "NOT_FOUND" | "UNAUTHORIZED" | "RATE_LIMITED" | ...
    console.log(error.message);    // Human-readable description
    console.log(error.statusCode); // HTTP status code
    console.log(error.details);    // Additional context
  }
}