Retry a jquery ajax request which has callbacks attached to its deferred

Question

I\'m trying to implement a system of retrying ajax requests that fail for a temporary reason. In my case, it is about retrying requests that failed with a 401 status code be

Answer 1

Would something like this work out for you? You just need to return your own Deferred/Promise so that the original one isn't rejected too soon.

Example/test usage: http://jsfiddle.net/4LT2a/3/

function doSomething() {
    var dfr = $.Deferred();

    (function makeRequest() {
        $.ajax({
            url: "someurl",
            dataType: "json",
            success: dfr.resolve,
            error: function( jqXHR ) {
                if ( jqXHR.status === 401 ) {
                    return makeRequest( this );
                }

                dfr.rejectWith.apply( this, arguments );
            }
        });
    }());

    return dfr.promise();
}