error returned when no error thrown..WEB API C#

Question

I have a Web API 2.0 action that does the following:

  [System.Web.Http.Route("api/wdretrievedata")]
    [System.Web.Http.HttpGet]
    public IHttpActionResult RetrieveUserData(string email)
    {
        var user = new WDUserData();
        user.FirstName = "FirstName";
        user.LastName="LastName";
        user.PhoneNumber="PhoneNumber";
        return Ok(user);

    }

AS you can see, no errors are here. I run this in Postman and get results (omitted certain data for security):

I run this in my code via $.ajax like so:

 $.ajax({
                url: 'http://localhost:49352/api/wdretrievedata?email=myemail@gmail.com',
                type: "GET",
                async: true,

                success: function (data) {
                   //never goes here
                },
                error: function (err) {
                     //always goes here
                    //err.statusText says 'error' and nothing else
                        alert(err.statusText);
                }
            });

The API call always returns in the error section and contains no data whatsoever. How do I get my API call to work via the $.ajax call like Postman? Thanks

If this helps, i've deployed my api to my web server. Troy this url to see what i'm getting:

http://tce-windows-env.hiujwmcthx.us-east-2.elasticbeanstalk.com/api/wdretrievedata?email=troy.compton@gmail.com

Can you show us the error? Aren't you getting errors due the fact that you're calling to the same origin (localhost)? — bmvr, Sep 11 '17 at 16:00
try to add breakpoint to your action and check if ajax reaches it — demo, Sep 11 '17 at 16:13
the call is being made. the action is reached when the ajax call is made. Im stumped — BoundForGlory, Sep 11 '17 at 16:16
in my actual code, the brackets are fine. i copied and pasted this and edited out all unnecessary code — BoundForGlory, Sep 11 '17 at 16:24
getting error : `No 'Access-Control-Allow-Origin' header is present on the requested resource.` — demo, Sep 11 '17 at 16:42
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/154158/discussion-between-demo-and-boundforglory). — demo, Sep 11 '17 at 16:49
@demo - when you showed me the error you received, i found this https://stackoverflow.com/questions/20035101/no-access-control-allow-origin-header-is-present-on-the-requested-resource and this is the answer...how do i give you credit? you helped me find this — BoundForGlory, Sep 11 '17 at 16:50

score 1 · Accepted Answer · answered Sep 11 '17 at 16:56

After some research with @BoundForGlory, it was detected that problem with Cross-Origin Requests.

One of options is to add custom header Access-Control-Allow-Origin to allow CORS

<httpProtocol>
    <customHeaders>
        <add name="Access-Control-Allow-Origin" value="*" />
    </customHeaders>
</httpProtocol>

score -1 · Answer 2 · answered Sep 11 '17 at 16:02

-1

Try:

[System.Web.Http.Route("api/wdretrievedata")]
[System.Web.Http.HttpGet]
public async Task<IHttpActionResult> RetrieveUserData(string email)
{
    var user =  await new WDUserData();
    user.FirstName = "FirstName";
    user.LastName="LastName";
    user.PhoneNumber="PhoneNumber";
    return Ok(user);

}

answered Sep 11 '17 at 16:02

Jester

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this doesnt compile – BoundForGlory Sep 11 '17 at 16:10
@BoundForGlory, you need to add `using system.threading.tasks` if I'm not wrong – demo Sep 11 '17 at 16:23
i did that and even added return Task.FromResult(user). Still the same problem – BoundForGlory Sep 11 '17 at 16:25
i added the url so you can test this. – BoundForGlory Sep 11 '17 at 16:37

error returned when no error thrown..WEB API C#

2 Answers2