post request: using request

request_post.js

// superagent example https://github.com/request/request#streaming
const request = require('request');

const obj = {
  username: 'string',
  password: 'string',
  redirectUrl: 'string',
  sso: 'string'
};

// example 1
request.post(url, {form: obj}, (err, httpResponse, body) => {
  console.log(httpResponse.headers);
});

// example 2
request.post(url, {form: obj})
        .on('response', (res) => {
          console.log(res.headers);
        })
        .on('error', (err) => {
          console.log(err);
        });