Node integration

export KERNIT_API_KEY="sk_kernit_live_YOUR_KEY"
node hyperlink-docx.mjs paper.docx

import { readFile, writeFile } from 'node:fs/promises';
import { basename } from 'node:path';

const apiKey = process.env.KERNIT_API_KEY;
if (!apiKey) throw new Error('KERNIT_API_KEY is required');

const inputPath = process.argv[2] || 'paper.docx';
const settings = {
  "refs": true,
  "figures": "number",
  "tables": "number",
  "equations": "number",
  "sections": "number",
  "doi": true,
  "crossref": true,
  "refTitleLink": false,
  "linkColor": "#0077BD",
  "xrefLinkColor": "#0077BD"
};

async function postMultipart(endpoint, fields) {
  const form = new FormData();
  for (const [name, value] of Object.entries(fields)) {
    if (value === undefined || value === null) continue;
    if (value instanceof Blob) form.set(name, value, basename(inputPath));
    else form.set(name, typeof value === 'string' ? value : JSON.stringify(value));
  }
  const response = await fetch('https://api.kernit.org' + endpoint, {
    method: 'POST',
    headers: { Authorization: 'Bearer ' + apiKey },
    body: form
  });
  const text = await response.text();
  if (!response.ok) throw new Error(endpoint + ' failed: ' + response.status + ' ' + text);
  try { return JSON.parse(text); } catch { return text; }
}

const fileBytes = await readFile(inputPath);
const file = new Blob([fileBytes], {
  type: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
});

const scan = await postMultipart('/hyperlink-scan', { file, settings });
const resolve = await postMultipart('/hyperlink-crossref', {
  file,
  settings,
  scanFingerprint: scan.scanFingerprint
});

const decisions = (scan.matches || []).map((match) => ({
  refId: match.refId,
  status: match.confidence >= 0.9 ? 'approved' : 'skipped',
  targetId: match.targetId
}));

const applied = await postMultipart('/hyperlink-apply', {
  file,
  settings,
  scanFingerprint: scan.scanFingerprint,
  scanToken: scan.scanToken,
  resolvedWorks: resolve.resolvedWorks || {},
  decisions
});

await writeFile('paper.linked.docx', Buffer.from(applied.docx, 'base64'));
console.log('Wrote paper.linked.docx with', applied.linkCount, 'links');