javascript call to a wcf service

Question

I have made a WCF REST service which returns the response in JSON format and now I want to
call it from javascript.But when I try to call it I couldn't view any response. To make a javascript call I have written this:

<script src="Scripts/jquery-1.5.2.min.js" type="text/javascript">
</script>
<script language="javascript" type="text/javascript">
function Greeting() {
    $("#btnWCFREST").click(function() {
        $.ajax({
            url:"http://localhost:8732/Services/RoleService/json/Role/provider",
            type:"GET",
            dataType:"json",
            contentType:"application/json; charset=utf-8",
            successs: function(msg) {
                         alert(msg);
            },
            Error: function(msg) {
                      alert("Failed");
            }
        });
    }
}
</script>

How can I get the response. Where Am I going wrong?

Sean Vieira · Accepted Answer · 2012-08-29 16:58:42Z

1

You have a syntax error - you never close you click method call's parentheses:

        }); // end .ajax function
    } // // end .click function - should be });
} // end Greeting function declaration

Also, Error: should be error: (JavaScript is case-sensitive).

answered Aug 29, 2012 at 16:58

Sean Vieira

161k34 gold badges321 silver badges297 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

cutiepie Over a year ago

I made ur above said changes and running the application.But when I check in developerTools Console window I got error like this: Failed to load resource: the server responded with a status of 405 (Method Not Allowed) localhost:8732/IServices/RoleService/json/Role/provider XMLHttpRequest cannot load http:/localhost:8732/IServices/RoleService/json/Role/provider Origin localhost:3098 is not allowed by Access-Control-Allow-Origin. How can I get rid of this error?

Sean Vieira Over a year ago

@cutiepie - you are serving your page and your web service off of different ports - that means that it is cross-domain as far as the browser is concerned. Either serve them both off the same port or have your web service send out a Access-Control-Allow-Origin header that allows access from the domain:port that your JavaScript is on.

Travesty3 · Accepted Answer · 2012-08-29 17:05:30Z

1

You have an extra s in successs. Change it to success to get that function to work.

Also, you used an uppercase E in Error. I believe Javascript is case-sensitive, so you will probably need to change that to error (all lowercase).

The first parameter passed into the error function will be the jqXHR object and the second parameter is the error message. So if you actually want to get the error message (which you may not, since you aren't using it), then you will need to add another parameter to your error function.

Finally, as @SeanVieira pointed out, you are missing a closing parenthesis for your click function.

edited Aug 29, 2012 at 17:05

answered Aug 29, 2012 at 16:56

Travesty3

14.5k7 gold badges64 silver badges103 bronze badges

Collectives™ on Stack Overflow

javascript call to a wcf service

2 Answers 2

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related