server.js

var http = require('http'),
    fs = require('fs'),
    url = require('url'),
    port = 8080;

/* Global variables */
var listingData, server;

var requestHandler = function(request, response) {
  var parsedUrl = url.parse(request.url);

  /*
    Your request handler should send listingData in the JSON format if a GET request
    is sent to the '/listings' path. Otherwise, it should send a 404 error.

    HINT: explore the request object and its properties
    http://stackoverflow.com/questions/17251553/nodejs-request-object-documentation
   */
if(request.method === 'GET' && parsedUrl.path === '/listings'){
    response.setHeader('content-type', 'application/json');
    response.end(JSON.stringify(listingData));
}
else{
   response.statusCode = 404;
   response.end('Bad gateway error');
 }

};

fs.readFile('listings.json', 'utf8', function(err, data) {
  /*
    This callback function should save the data in the listingData variable,
    then start the server.
   */
   listingData = JSON.parse(data);
   server = http.createServer(requestHandler);
   server.listen(port);
    console.log('Server is listening');




   //UF-Directory-App-Assignment-Assignment1
});