users.js

var express = require('express');
var router = express.Router();

var userList = [];

//Returns userList
router.get('/', function(req, res, next) {

	res.status(200);
	res.json(userList);

});

//Adds user to userList and returns index of user and user object
router.post('/', function(req, res, next) {

	var userObject = req.body;
	var i = userList.push(userObject) - 1;
	var response = {index: i, user: userObject};

	res.status(200);
	res.json(response);

});

//Deletes user in userList at given index and returns updated userList
router.delete('/:index', function(req, res, next) {

	var index = req.params.index;
	userList.splice(index, 1);

	res.status(200);
	res.json(userList);


});

//Modifies user in userList at given index and returns index of updated user and updated user object
router.patch('/:index', function(req, res, next) {

	var index = req.params.index;
	var userObject = req.body;
	userList[index] = userObject;

	var response = {index: index, user: userObject};

	res.status(200);
	res.json(response);


});

module.exports = router;