Cart

cart.js

'use strict';

// Code not verified / tested though. -Tianze

var express = require("express");
var fs = require("fs");
var _ = require("underscore");

var dbJsonFileName = "carts.json";
var dbJson = fs.readFileSync(dbJsonFileName, 'utf8');
var app = express();

// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }));
// parse application/json
app.use(bodyParser.json());

function saveDb() {
	fs.writeFile(dbJsonFileName, dbJson);
}

app.get("/carts", function(req, res) {
	res.send(dbJson);
});

app.get("/carts/:id", function(req, res) {
	var id = req.params.id;
	dbJson.forEach(function(item) {
		if (item.id === id) {
			res.send(item);
			return;
		}
	});
	res.status(404).send();
});

app.post("/carts", function(req, res) {
	dbJson = req.body;
	saveDb();
});

app.put("/carts/:id", function(req, res) {
	var id = req.params.id;
	dbJson.forEach(function(item, index, arr) {
		if (item.id === id) {
			arr[index] = req.body;
			saveDb();
			res.send();
			return;
		}
	});
	res.status(404).send();
});

app.delete("/carts/:id", function(req, res) {
	var id = req.params.id;
	dbJson.forEach(function(item, index, arr) {
		if (item.id === id) {
			arr.splice(index, 1);
			saveDb();
			res.send();
			return;
		}
	});
	res.status(404).send();
});

var port = process.env.PORT || 3000;
app.listen(port, function () {
	console.log("To view your app, open this link in your browser: http://localhost:" + port);
});