recurse-db-server.js

'use strict';

// Use Express as our routing middleware.
const express = require('express');
const app = express();
const port = process.env.port || 4000;

startServer();

function startServer () {

	// Stores all requests to /set in this arr.
	var items = [];

	app.get('/', function (req, res) {
		res.send('Hey! I\'m awake!');
	});

	app.get('/set', function (req, res) {

		// When a request is received on set, key-val pair object is set to kvp.
		var kvp = req.query;
		items.push(kvp);
		res.send(items);
	});

	app.get('/get', function (req, res) {

		// Prints the returned result to the page.
		res.send('Key supplied: ' + req.query.key + ', ' +
				'Found value: ' + findMe(req.query.key));

		// Iterates through the array looking for the key. Returns found value.
		function findMe (key) {
			for (var i = 0; i <= items.length; i++) {
				for (var k in items[i]) {
					if (items[i].hasOwnProperty(k) && k === key) {
						return items[i][k];
					}
				}
			}
		}
	});

	app.listen(port, () => {
		console.log('I\'m up and running on port ' + port + '!');
	});
}