make_post_request.js

  var resp_body = '';
  await new Promise((resolve, reject) => {
    var request = https.request(post_options, res => {
      res.on('data', chunk => {resp_body += chunk});

      res.on('error', err => {
        console.log("Error in POST:", err);
        reject(err);
      });

      res.on('end', () => {
        var msg = 'Got HTTP/' + String(res.statusCode) + ' : ' + resp_body;
        console.log(msg);
        if (res.statusCode != 200) {
          reject(new Error(msg));
        } else {
          resolve();
        }
      });
    });

    request.on('error', err => {
      console.log(err);
      reject(err);
    });
    request.write('');
    request.end();
  });