Question

I have an ajax call as below:

$.ajax({
                type: "GET",
                url: "process.php",
                data: dataString,
                success: function( response ) {
                    $('#in-progress').hide();
                  $('#mydiv').html(response)
                  .append("")                   
                }                     

              });

What I want is, that I need to get the distinguished message from process.php. What should I do in thid regard so that I may not parse the message myself. I need to send some specific code or something from my process.php so that the ajax can process it separately. Shall I use some http response code and use it in statusCode ? What is the appropriate practice to do that ?

e.g. Success message will be “This is Success”
Error message will be “There is an unknown error” – This message should be treated separately. Any idea ?

Answer 1

What I usually do to distinguish a success/error status from an ajax call, I return http status 500 with the error message encoded in json.

The error status 500 is being handled by the ‘error’ callback which I usually set on the $.ajaxSetup like so:

$.ajaxSetup({
  'error': function( XMLHttpRequest, textStatus, errorThrown ) {
     var data = $.parseJSON(XMLHttpRequest.responseText);
     // alert somehow.
},