app-http.js

var http = require('http');
var querystring = require('querystring');

var post_data = querystring.stringify({
    username : 'demo',
    password: 'demo'
});

var options = {
    hostname: 'tableready.herokuapp.com',
    port: 80,
    path: '/login',
    method: 'POST',
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        'Content-Length': post_data.length
    }
};

var req = http.request(options, function(res) {
    console.log('HEADERS: ' + JSON.stringify(res.headers));
    res.setEncoding('utf8');
    res.on('data', function (chunk) {
        console.log('BODY: ' + chunk);
    });
});

req.on('error', function(e) {
    console.log('problem with request: ' + e.message);
});

req.end(post_data);

app-request.js

var request = require('request');
var login = 'http://tableready.herokuapp.com/login';

var req_login = request.post(login, function optionalCallback(err, httpResponse, body) {
    if (err) {
        return console.error('npm request err:', err);
    }
    console.log('npm request response:', body);
    console.log('npm request headers:', httpResponse.headers);
});
var form1 = req_login.form();
form1.append('username', 'demo');
form1.append('password', 'demo');

1. node and npm should be installed

brew install node

1. save app-http.js to file
   run from terminal

node app-http.js

1. save app-request.js to file
   run from termianl

npm install request
node app-request.js