@opengis/fastify-table/server/routes/file/controllers/utils/formatResult.js

core-plugins

import path from 'node:path';
import { readFileSync } from 'node:fs';

export default function formatResult({
  filePath, formatAnswer, folder, reply,
}) {
  if (formatAnswer === 'file') {
    const encoding = path.extname(filePath) === '.xlsx' ? 'base64' : 'utf8';
    const data = readFileSync(filePath, encoding);
    return reply.headers({ 'Content-Disposition': `attachment; filename=${path.basename(filePath)}` }).send(Buffer.from(data, encoding));
  }

  return {
    filePath: filePath.replace(/\\/g, '/')?.replace(folder, ''),
    status: 200,
  };
}