WCF Service JSON Post data using ASP.NET

Question

Having problem when using POST using JSON in ASP.NET. Kindly check my code when I used POST. Is there's something wrong when javascript code?

Exact error :

Failed to load resource: the server responded with a status of 405 (Method Not Allowed) localhost:99/Service1.svc/api/updtelogin.json XMLHttpRequest cannot load localhost:99/Service1.svc/api/updtelogin.json. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'localhost:1110' is therefore not allowed access. The response had HTTP status code 405.

IService

    [OperationContract]
    [WebInvoke(Method = "POST",
        RequestFormat = WebMessageFormat.Json,
        ResponseFormat = WebMessageFormat.Json,
        BodyStyle = WebMessageBodyStyle.Wrapped,
        UriTemplate = "api/updtelogin.json")]
    UpdateUser updteUser(RequestData rData);

RequestData

[DataContract(Namespace = "")]
public class RequestData
{
    [DataMember]
    public string details { get; set; }
}

Service.svc

    private UpdateUser updateuser(RequestData rData)
    {
        return updteUser(rData);
    }

    public UpdateUser updteUser(RequestData rData)
    {
        var data = rData.details.Split('|');            

    }

And this is my javascript from ASP.NET

  <script type="text/javascript">
    $("#btnChange").live("click", function () {
        var test = {};
        test.uname = "admin";
        $.ajax({
            type: 'POST',
            url: 'http://localhost:99/Service1.svc/api/updtelogin.json',
            data: "{rData:" + JSON.stringify(test) + "}",
            contentType: 'application/json; charset=utf-8',
            dataType: 'json',
            success: function (r) {
                alert(r.d.uname);
            }
        });
    });
</script>

Community · Accepted Answer · 2017-05-23 11:49:39Z

1

Correct me if I'm wrong, you have two applications:

localhost:99 - wcf service
localhost:1110 - web application calling your wcf service

This violates "same origin policy" for your ajax request because of different port.

Here you have instruction how to add CORS headers to WCF service: Enable CORS on WCF Service. Get HTTP 405: Method Not Allowed

edited May 23, 2017 at 11:49

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answered Nov 4, 2014 at 8:35

b2zw2a

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2 Comments

Gimo Gilmore Over a year ago

What I'm getting now is Bad request POST localhost:99/Service1.svc/api/updtelogin.json 400 (Bad Request)

b2zw2a Over a year ago

It looks like deserialization problem: data: "{rData:" + JSON.stringify(test) + "}" does not correspond to your RequestData type: public class RequestData { [DataMember] public string details { get; set; } }

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