server_static.js

var fs = require('fs');
var http = require('http');
var url = require('url');
var ROOT_DIR = "html";
http.createServer(function (req, res) {
  var urlObj = url.parse(req.url, true, false);

  if (urlObj.pathname.indexOf('getcity') > -1) { // New Route
    // Then we have the getcity in here.
    console.log('In getcity');
	var myRe = new RegExp("^" + urlObj.query["q"]);
    // Now we need to read all of the names of cities.dat.txt
    fs.readFile('cities.dat.txt', function(err, data) {
	// Now we read the data, put it in an array.
	if (err) throw err;
	cities = data.toString().split("\n");
	//console.log(cities);
	json_results = []
	for (var i = 0; i < cities.length; i++) {
		//console.log("cities[i]: " + cities[i]);
		result = cities[i].search(myRe);
		//console.log("result: " + result);
		if (result != -1) {
		//	console.log(cities[i]);
			json_results.push({
				city: cities[i]
			});
		}
	}
//	console.log("Response: " + res);
//	console.log("Search results:");
//	console.log(JSON.stringify(json_results));
	res.writeHead(200);
	res.end(JSON.stringify(json_results));
    });


// Then read the cities.dat.txt file.
// Search int he file with the query prefix.
// Then return those names!
  } else {

  fs.readFile(ROOT_DIR + urlObj.pathname, function (err,data) {
    if (err) {
      res.writeHead(404);
      res.end(JSON.stringify(err));
      return;
    }
    res.writeHead(200);
    res.end(data);
  });

}
}).listen(80);