The requested resource does not support HTTP method GET

Question

My route is correctly configured  and my methods have the decorated tag   I still get  The requested resource does not support HTTP method  GET   message    System Web Mvc AcceptVerbs  GET    POST     System Web Mvc HttpGet  public string Auth string username  string password         D  coder les param  tres re  ue    string decodedUsername   username DecodeFromBase64      string decodedPassword   password DecodeFromBase64       return  value       Here are my routes   config Routes MapHttpRoute      name   AuthentificateRoute       routeTemplate   api game authentificate  username   password        defaults  new   controller    Game                       action    Auth                        username   RouteParameter Optional                       password   RouteParameter Optional        constraints  new   httpMethod   new HttpMethodConstraint HttpMethod Get        config Routes MapHttpRoute      name   DefaultApi       routeTemplate   api  controller   id        defaults  new   controller    Home   id   RouteParameter Optional

User · Accepted Answer

Please use the attributes from the System.Web.Http namespace on your WebAPI actions:

    [System.Web.Http.AcceptVerbs("GET", "POST")]
    [System.Web.Http.HttpGet]
    public string Auth(string username, string password)
    {...}

The reason why it doesn't work is because you were using the attributes that are from the MVC namespace System.Web.Mvc. The classes in the System.Web.Http namespace are for WebAPI.

User · Answer

Resolved this issue by using http s  when accessing the endpoint   The route I was accessing was not available over http   So I would say verify the protocols for which the route is available

User · Answer

In my case  the route signature was different from the method parameter  I had id  but I was accepting documentId as parameter  that caused the problem     Route  Documents  id        lt --- caused the webapi error  Route  Documents  documentId      lt -- solved public Document Get string documentId

User · Answer

I was experiencing the same issue   I already had 4 controllers going and working just fine but when I added this one it returned  The requested resource does not support HTTP method  GET     I tried everything here and in a couple other relevant articles but was indifferent to the solution since  as Dan B  mentioned in response to the answer  I already had others working fine    I walked away for a while  came back  and immediately realized that when I added the Controller it was nested under the  Controller  class and not  ApiController  class that my other Controllers were under  I m assuming I chose the wrong scaffolding option to build the  cs file in Visual Studio  So I included the System Web Http namespace  changed the parent class  and everything works without the additional attributes or routing

User · Answer

just use this attribute    System Web Http HttpGet    not need this line of code    System Web Http AcceptVerbs  GET    POST

[c#] The requested resource does not support HTTP method 'GET'

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