Runs a Node.js server which stores/retrieves data in memory based on URL params

dbServer.js

var http = require("http");
var url = require("url");
var db = {};

var handleRequest = function(req, res) {
  res.writeHead(200, {"Content-Type": "text/plain"});
  console.log("Request was made to URL: " + req.url);

  // Get URL params
  var parsedUrl = url.parse(req.url, true);
  var pathname = parsedUrl.pathname;
  var query = parsedUrl.query;
  var resMessage = "Proper URL params: '/set?somekey=somevalue' OR '/get?key=somekey'";
  
  // Handle routes
  if (pathname === "/set") { // SET sends params to JSON object
    db = Object.assign(db, query);
    resMessage = "You have stored " + JSON.stringify(query) + " in memory.";
    console.log(db);
  } else if (pathname === "/get") { // GET finds params from JSON object
    var key = query.key;
    var value = db[key];
    resMessage = "The value of '" + key + "' is: " + value;
  }

  // Send result to user
  res.end(resMessage);
}

// Run server
http.createServer(handleRequest).listen(4000, function() {
  console.log("App running on port 4000");
});