ASP.NET Web API - PUT & DELETE Verbs Not Allowed - IIS 8

Question

I recently upgraded from Visual Studio 2010 to the Visual Studio 2012 RC. The installer also installs IIS 8 Express which Visual Studio now uses as the default web server.

Answer 1

Besides all above solutions, check if you have the "id" or any custom defined parameter in the DELETE method is matching the route config.

public void Delete(int id)
{
 //some code here
}

If you hit with repeated 405 errors better reset the method signature to default as above and try.

The route config by default will look for id in the URL. So the parameter name id is important here unless you change the route config under App_Start folder.

You may change the data type of the id though.

For example the below method should work just fine:

public void Delete(string id)
{
 //some code here
}

Note: Also ensure that you pass the data over the url not the data method that will carry the payload as body content.

DELETE http://{url}/{action}/{id}

Example:

DELETE http://localhost/item/1

Hope it helps.