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 cook;

var req = http.request(options, function(res) {
    res.setEncoding('utf8');
    res.on('data', function (chunk) {
        cook = res.headers['set-cookie'];
        return onSuccessLogin(cook);
    });

});

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

function onSuccessLogin(cook){
    var post_sms = querystring.stringify({
        message: "Your table's ready at Roberts Roadhouse. Please see the host to be seated. test1",
        phone: "1231231231",
        time: Date.now()
    });

    console.log(cook);

    var h = {};
    h['content-type'] = 'application/x-www-form-urlencoded';
    h['content-length'] =  post_sms.length;
    h['cookie'] = cook[0];

    var o = options;
    o.path = '/v.1/smsPage';
    o.headers = h;
    var req_sms = http.request(o, function(res) {
        res.setEncoding('utf8');
        res.on('data', function (chunk) {
           console.log('BODY: ' + chunk);
        });
    });

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

    console.log(h);

    req_sms.end(post_sms);
}
return;

request.js

var request = require('request');
var login = 'http://tableready.herokuapp.com/login';
var sms = 'http://tableready.herokuapp.com/v.1/smsPage';
var cook;

var req_login = request.post(login, function (err, httpResponse, body) {
    if (err) {
        return console.error('npm request err:', err);
    }
    cook = httpResponse.headers['set-cookie'];
    onSuccessLogin(cook);
});
var form1 = req_login.form();
form1.append('username', 'demo');
form1.append('password', 'demo');

function onSuccessLogin(cook) {
    var querystring = require('querystring');

    var form = {
        message: "Your table's ready at Roberts Roadhouse. Please see the host to be seated. test1",
        phone: "1231231231",
        time: Date.now()
    };

    var formLength = querystring.stringify(form).length;

    var options = {
        url: sms,
        method: 'post',
        form: form,
        headers: {
            'content-type': 'application/x-www-form-urlencoded',
            'content-length': formLength,
            'cookie': cook[0],
            'time': Date.now()
        }
    };

    function bibi (error, response, body) {
        if (error) {
            console.log(error);
        } else {
            console.log(body);
        }
    }

    request (options, bibi);
}

1. 'node' and 'npm' should be installed:

brew install node

2. Save 'app-http.js' to file run from terminal:

"npm install querystring"

"node app-http.js"

3. Save app-request.js to file run from termianl:

"npm install request"

"npm install querystring"

"node app-request.js"