const fs      = require('fs');
const express = require('express');
const app     = express();

const { promisify } = require('util');
const unlink = promisify(fs.unlink);

app.delete('/delete', (req, res) => {
  try {
    await Promise.all([unlink('path/doc_1'), unlink('path/doc_2')]);
    res.end();
  } catch(e) {
    console.error(e);
    res.status(500).send('Ocorreu um erro interno.');
  }
});