node.js http request to promise

http-request-promise.js

const http = require('http');

return new Promise((resolve, reject) => {
  http.get(url, (res) => {
    if (res.statusCode >= 400) {
      const err = new Error(`${res.statusCode} - ${res.statusMessage}`);
      err.statusCode = res.statusCode;
      return reject(err);
    }
    return resolve(res);
  }).on('error', err => reject(err));
})