server.js

const http = require('http');
const url = require('url');
const ocrHandler = require('./api/ocr');

const port = process.env.PORT || 3000;

const server = http.createServer(async (req, res) => {
  const { pathname } = url.parse(req.url, true);

  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'POST, OPTIONS');
  res.setHeader('Access-Control-Allow-Headers', 'Content-Type');

  if (req.method === 'OPTIONS') {
    res.statusCode = 204;
    res.end();
    return;
  }

  if (pathname === '/api/ocr') {
    await ocrHandler(req, res);
    return;
  }

  res.statusCode = 404;
  res.end('Not found');
});

server.listen(port, () => {
  console.log(`OCR server running on http://localhost:${port}`);
});