I have looked over a ton of 'method not supported' errors on StackOverflow but none of the suggested solutions have worked for me. I have a very basic Web API with a web method that on Post request always returns the error
'The requested resource does not support http method 'POST''
when called from PostMan with a POST request.
There are no httpprotocols defined in my web.config. I have tried with and without the Route and also without the [FromBody] in the parameter passed but all permutations have failed.
Request = http://myURL/api/XMLInput, the body of the request has an XML which I am processing.
Controller
[Route("XMLInput")]
[System.Web.Http.HttpPost]
public IHttpActionResult PostXMLInput([FromBody] XmlDocument xml)
{
XMLInput xmlInput = new XMLInput();
xmlInput.XML = xml.InnerXml;
return null;
}
WebApiConfig.cs
public static void Register(HttpConfiguration config)
{
// Web API routes
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
The provided Request http://myURL/api/XMLInput would not match your action unless the action has a route that maps correctly
[RoutePrefix("api")]
public class MyController : ApiController {
//POST api/XMLInput
[Route("XMLInput")]
[HttpPost]
public IHttpActionResult PostXMLInput([FromBody] XmlDocument xml) { ... }
}
OR
public class MyController : ApiController {
//POST api/XMLInput
[Route("api/XMLInput")]
[HttpPost]
public IHttpActionResult PostXMLInput([FromBody] XmlDocument xml) { ... }
}