Calling .net web service behind webform authentication page from javascript

Question

I am trying to call a web service that is located on a web server that requires web form authentication

 $.ajax({
                    type: "Get",
                    url: "http://SomeIPAddressThatIDontWantToShare/WebServices/GetServerData.asmx/GetOPCHist_Last4h",
                    data: { OPCName: OPCName_Passed, OPCTable: OPCTable_Passed },
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                    success: function (data) {
                        $.each(data, function (index, element) {
                            T1.push([new Date(element.DateAndTime).getTime(), element.T1]);
                        });
                    },
                    error: function (request, status, error) {
                        alert(request.status + ' ' + request.responseText);
                    }
                })

However when doing so it always hits the error state with a state of "0" and nothing for the responseText. I manually authenticated on the browser before hitting the page.

So the question is, do I have to do web form authentication from javascript, and if so how?

Also is this error even related to web form authentication or is status of 0 possibly something totally different.

I verified I can access that webservice once I log in from a browser.

Community · Accepted Answer · 2017-05-23 12:08:34Z

1

If your service is under webforms protection, you have to, of course, login first. Check this to try to remove webforms protection for your ws. Or you can try this one to work within webforms.

I hope this can help you.

edited May 23, 2017 at 12:08

CommunityBot

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answered Aug 18, 2016 at 7:01

Tistkle

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1 Comment

Eliseo Over a year ago

This is exactly what I was looking for, while leaving the web service outside of webform protection will not work for us the second solution works perfectly. Thanks so much for your help!

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