Ajax Error Http Status Code
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Jquery Ajax Get Http Status Code
programmers, just like you, helping each other. Join them; it only takes a minute: Sign up jQuery AJAX Error Handling (HTTP Status Codes) up vote 20 down vote favorite 3 We have an API which uses proper ajax error status 200 HTTP status codes for errors, and responds with JSON-encoded responses and appropriate Content-Type header. My situation is that jQuery.ajax() triggers the error callback when it encounters an HTTP error status, and not the success callback, so even when we have an intelligible JSON response, we have to resort to something like this: $.ajax({ // ... success: function(response) { if (response.success) { console.log('Success!'); console.log(response.data); } else { console.log('Failure!'); console.log(response.error); } }, error: function(xhr, status, text) ajax status code list { var response = $.parseJSON(xhr.responseText); console.log('Failure!'); if (response) { console.log(response.error); } else { // This would mean an invalid response from the server - maybe the site went down or whatever... } } }); Is there a better paradigm than doing identical error handling in two spots in each jQuery.ajax() call? It's not very DRY, and I'm sure I've just missed something somewhere on good error handling practices in these cases. jquery ajax error-handling share|improve this question asked Oct 4 '12 at 19:44 drrcknlsn 11.4k73879 I'm assuming by HTTP Status code, you mean you are sending back 501 as the HTTP status code on error. Why would you do that if you are properly handling the error on the server side? –Lawrence Johnson Oct 4 '12 at 19:48 Check out the jquery.ajax (api.jquery.com/jQuery.ajax) statusCode parameter. –ron tornambe Oct 4 '12 at 19:50 2 @LawrenceJohnson: I'm using the response codes as they were meant to be used. Sending a 200 OK every response would require reinventing the wheel with respect to error codes/messages. –drrcknlsn Oct 5 '12 at 2:16 1 Yes, but those errors are in the protocol at the network level. You've lost your mind if you think validation errors are the same as Http errors. –Lawrence Johnson Nov 9 '12 at 22:0
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Ajax Status Code Example
IP Address » Server Headers Check » Share Link Generator » Minify JavaScript » Minify ajax status code 500 CSS » HTML Encoder » URL Encoder HTTP Status and Error Codes Explained The following is a list of HTTP response status
Ajax Status Code 404
codes and standard associated phrases, intended to give a short textual description of the status. 1xx Informational 2xx Success 3xx Redirection 4xx Client Error 5xx Server Error 1xx InformationalRequest received, continuing process. top Code Status Explanation 100 http://stackoverflow.com/questions/12734714/jquery-ajax-error-handling-http-status-codes Continue The request has been completed and the rest of the process can continue. 101 Switching Protocols When requesting a page, a browser might receive a statis code of 101, followed by an "Upgrade" header showing that the server is changing to a different version of HTTP. 2xx SuccessThe action was successfully received, understood, and accepted. top Code Status Explanation 200 OK Standard response for HTTP successful requests. 201 Created When new pages http://www.seocentro.com/articles/apache/http-status-codes.html are created by posted form data or by a CGI process, this is confirmation that it worked. 202 Accepted The client's request was accepted, though not yet processed. 203 Non-Authorative Information The information contained in the entity header is not from the original site, but from a third party server. 204 No Content If you click a link which has no target URL, this response is elicited by the server. It's silent and doesn't warn the user about anything. 205 Reset Content This allows the server to reset any content returned by a CGI. 206 Partial Content The requested file wasn't downloaded entirely. This is returned when the user presses the stop button before a page is loaded, for example. 3xx RedirectionThe client must take additional action to complete the request. top Code Status Explanation 300 Multiple Choices The requested address refers to more than one file. Depending on how the server is configured, you get an error or a choice of which page you want. 301 Moved Permanently If the server is set up properly it will automatically redirect the reader to the new location of the file. 302 Moved Temporarily Page has been moved temporarily, and the new URL is available. You should be sent there by the server. 303 See Other This is a "see othe
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 http://www.bennadel.com/blog/1392-handling-ajax-errors-with-jquery.htm 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 status code of all 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 ajax status code header tells 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 su
AJAX Errors With jQuery By Ben Nadel on November 7, 2008 Tags: AJAX, Javascript / DHTML jQuery is the most awesome javascript library that exists. Every day, I'm finding new ways to leverage it and shorter, more efficient ways to get things done. But, while most things are easy to do, the solution is not always immediately evident. One of the things that took me a good while to figure out was how to gracefully handle AJAX errors. Anyone who's worked with JSON requests and other AJAX calls knows that sometimes, that stuff just fails silently; you know something went wrong, but no errors were thrown. If it wasn't for FireBug showing us 404 or 500 style errors, there'd be no evidence at all of these fails.I've come up with a way to centralize my AJAX calls in a way that seemlessly handles all errors that occur either from the request connection or the JSON processing (ie. poorly formed JSON that cannot be converted back into Javascript data types). I'm not sure if this is the best of all ways, but I'm liking it. The whole concept rests on the fact that all of my system API (AJAX) calls return a uniform response with the following structure:{SUCCESS: true,DATA: "",ERRORS: []}The Success property flags the request as having executed properly and returned the expected data. The Data property can be anything it needs to be. The Errors property is an array of any errors that need to be reported. It is only by requiring that all AJAX requests expect this that I can easily handle all errors.In production, the following code would probably be part of some other object or integrated into the Javascript framework in a different way, but for this demo, I'm going to break out my AJAX request pipeline into its own class:// Create an object to handle our AJAX.function AJAX(){var objSelf = this;// This struct will cache the current XmlHTTP requests// so that we can reference them if a call fails.this.CurrentRequests = {};}// This handles the JSON request. This checks to see if the current// request is already being processed and also handles any error// wiring that is required.AJAX.prototype.GetJSON = function( $1, $2, $3, $4 ){var objSelf = this;var strName = $1;var strURL = $2;var objOptions = $3;var fnCallback = $4;// Check to see if there are only three arguments. I