MVC 4 Web API Action return: Types vs HttpResponseMessage

action, asp.net, asp.net-web-api

Solution

There is no difference.

If you return CLR type, it will be wrapped with `HttpResponseMessage` anyway.

The only difference is that if you return `HttpResponseMessage` you get a chance to work directly with HTTP - so you can set headers, bypass `MediaTypeFormatters` and so on.

It's all a matter of personal preference and/or the activity that's performed in your action.

Problem

What is the difference returning Types e.g. ``` public class MyController : ApiController { public IEnumerable<MyType> Get()... ``` vs Returning HttpResponseMessage: ``` public class MyController : ApiController { public HttpResponseMessage Get()... ``` ?? Does MVC wraps types into HttpResponseMessage content object anyways? The result on the page looks the same besides when formatters are explicitly added. What is the difference to the client?

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