Ajax Call Error Handling
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta $.ajax error handler example Discuss the workings and policies of this site About Us Learn more jquery ajax error message example about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack jquery ajax failure function example Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping ajax error handling javascript each other. Join them; it only takes a minute: Sign up jQuery ajax error function up vote 41 down vote favorite 21 I have an ajax call passing data to a page which then returns a value. I have retrieved the successful call from the page but i have coded it so that it raises an error
Ajax Error Handling Best Practices
in the asp. How do i retrieve that error from the jquery? For example: cache: false, url: "addInterview_Code.asp", type: "POST", datatype: "text", data: strData, success: function (html) { alert('successful : ' + html); $("#result").html("Successful"); }, error: function (error) { **alert('error; ' + eval(error));** } It's the error bit that I don't understand. In the function what parameter do I need to put, so that I can then use the error message that I raised in the asp page. jquery ajax share|improve this question edited Mar 16 at 12:28 dirn 7,17631530 asked Jul 22 '11 at 16:13 Darryl Wilson 306135 add a comment| 7 Answers 7 active oldest votes up vote 70 down vote Try this: error: function(jqXHR, textStatus, errorThrown) { console.log(textStatus, errorThrown); } If You want to inform Your frontend about an validation error, try to return json: dataType: 'json', success: function(data, textStatus, jqXHR) { console.log(data.error); } Your asp script schould return: {"error": true} share|improve this answer edited Feb 14 '13 at 10:05 answered Jul 22 '11 at 16:21 czerasz
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About
Jquery Ajax Error Handling Show Custom Exception Messages
Us Learn more about Stack Overflow the company Business Learn more about hiring ajax call error 200 developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the xml error handling Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How do you handle errors http://stackoverflow.com/questions/6792878/jquery-ajax-error-function from AJAX calls? up vote 22 down vote favorite 13 Let's say I have the following jQuery AJAX call: $.ajax({ type: "POST", url: "MyUrl", data: "val1=test", success: function(result){ // Do stuff } }); Now, when this AJAX call is made I want the server-side code to run through a few error handling checks (e.g. is the user still logged in, do they have permission to use http://stackoverflow.com/questions/407596/how-do-you-handle-errors-from-ajax-calls this call, is the data valid, etc). If an error is detected, how do I bubble that error message back up to the client side? My initial thought would be to return a JSON object with two fields: error and errorMessage. These fields would then be checked in the jQuery AJAX call: $.ajax({ type: "POST", url: "MyUrl", data: "val1=test", success: function(result){ if (result.error == "true") { alert("An error occurred: " & result.errorMessage); } else { // Do stuff } } }); This feels a bit clunky to me, but it works. Is there a better alternative? jquery ajax validation share|improve this question asked Jan 2 '09 at 18:12 Kevin Pang 20.4k32107159 add a comment| 5 Answers 5 active oldest votes up vote 20 down vote accepted Personally, I have similar code to the following code in my library. $.ajaxSetup({ error: function(xhr){ alert('Request Status: ' + xhr.status + ' Status Text: ' + xhr.statusText + ' ' + xhr.responseText); } }); jQuery docs Ajax/jQuery.ajaxSetup The best way to bubble that error from the server side (using php) to the client side is to send a header through the Ajax request somewhere in the 400's (which is a
Team Conduct Brand Guide Donate jQuery API Documentation Download API Documentation Blog Plugins Browser Support search Search jQuery API Documentation jQuery.ajax() Categories: Ajax > Low-Level Interface jQuery.ajax( url [, settings ] )Returns: jqXHR http://api.jquery.com/jquery.ajax/ Description: Perform an asynchronous HTTP (Ajax) request. version added: 1.5jQuery.ajax( url [, settings ] ) url Type: String A string containing the URL to which the request is sent. settings Type: PlainObject A set of key/value pairs that configure the Ajax request. All settings are optional. A default can be set for any option with $.ajaxSetup(). See jQuery.ajax( settings ) below for a complete list of all error handling settings. version added: 1.0jQuery.ajax( [settings ] ) settings Type: PlainObject A set of key/value pairs that configure the Ajax request. All settings are optional. A default can be set for any option with $.ajaxSetup(). accepts (default: depends on DataType) Type: PlainObject A set of key/value pairs that map a given dataType to its MIME type, which gets sent in the Accept request header. This header tells ajax error handling the server what kind of response it will accept in return. For example, the following defines a custom type mycustomtype to be sent with the request: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 $.ajax({ accepts: { mycustomtype: 'application/x-some-custom-type' }, // Instructions for how to deserialize a `mycustomtype` converters: { 'text mycustomtype': function(result) { // Do Stuff return newresult; } }, // Expect a `mycustomtype` back from server dataType: 'mycustomtype'}); Note: You will need to specify a complementary entry for this type in converters for this to work properly. async (default: true) Type: Boolean By default, all requests are sent asynchronously (i.e. this is set to true by default). If you need synchronous requests, set this option to false. Cross-domain requests and dataType: "jsonp" requests do not support synchronous operation. Note that synchronous requests may temporarily lock the browser, disabling any actions while the request is active. As of jQuery 1.8, the use of async: false with jqXHR ($.Deferred) is deprecated; you must use the success/error/complete callback options instead of the corresponding methods of the jqXHR object such as jqXHR.done(). beforeSend Type: