Use ExpressJS to Get URL and POST Parameters

GET

// grab the packages we need
var express = require('express');
var app = express();
var port = process.env.PORT || 8080;

// routes will go here

// start the server
app.listen(port);
console.log('Server started! At http://localhost:' + port);

http://example.com/api/users?id=4&token=sdfa3&geo=us

// routes will go here
app.get('/api/users', function(req, res) {
  var user_id = req.param('id');
  var token = req.param('token');
  var geo = req.param('geo');  

  res.send(user_id + ' ' + token + ' ' + geo);
});

POST

npm install body-parser --save

var bodyParser = require('body-parser');
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies

// POST http://localhost:8080/api/users
// parameters sent with 
app.post('/api/users', function(req, res) {
    var user_id = req.body.id;
    var token = req.body.token;
    var geo = req.body.geo;

    res.send(user_id + ' ' + token + ' ' + geo);
});

References
https://scotch.io/tutorials/use-expressjs-to-get-url-and-post-parameters
http://www.tutorialspoint.com/nodejs/nodejs_express_framework.htm
https://www.npmjs.com/package/body-parser-json

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