Create code to download .pdf files and compile the files into a smart contract

const fs = require('fs');
const axios = require('axios');

const downloadFile = async (url, path) => {
  const writer = fs.createWriteStream(path);
  const response = await axios({
    url,
    method: 'GET',
    responseType: 'stream',
  });
  response.data.pipe(writer);
  return new Promise((resolve, reject) => {
    writer.on('finish', resolve);
    writer.on('error', reject);
  });
};

const urls = [
  'https://media.consensys.net/2017/06/21/Smart-Contract-Security-Best-Practices.pdf',
  'https://blog.zeppelin.solutions/smart-contract-security-using-zeppelin-os-f8d17b9e5b5e',
  'https://media.consensys.net/the-hitchhikers-guide-to-smart-contracts-in-ethereum-848f08001f05',
  'https://