Node.js, Ajax sending and receiving Json

Question

Using Ajax, I\'m trying to just send Json data to a node server no processing involved just alerting when it\'s sent and alerting when it\'s received:

This is my ht

Answer 1

try this on the server side:

var port = 8000;
var http = require("http");
var server = http.createServer();
server.on('request', request);
server.listen(port);
function request(request, response) {
    var store = '';

    request.on('data', function(data) 
    {
        store += data;
    });
    request.on('end', function() 
    {  console.log(store);
        response.setHeader("Content-Type", "text/json");
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.end(store)
    });
 }  

and this on the client side:

$.ajax
({
  type: "POST",
  url: "http://localhost:8000",
  crossDomain:true, 
  dataType: "json",
  data:JSON.stringify({name: "Dennis", address: {city: "Dub", country: "IE"}})
 }).done(function ( data ) {
      alert("ajax callback response:"+JSON.stringify(data));
   })

Hope this works for you

Answer 2

You can't use response.write() or response.end() with a plain javascript object, you can only write Buffers or strings.

So what you need to do is stringify the object first. Either change the response.end(store); to response.end(JSON.stringify(store)); or don't store = JSON.parse(store); in the first place (unless you are doing it to validate the JSON -- and if that was that case you should wrap it in a try-catch because JSON.parse() will throw on parse error).