在MVC 5中使用FromUri或FromBody

Question

I would like to expose my POST method in a way that allows users call it with parameters either encoded in the url or written inside the request body. Pseudocode:

public HttpResponseMessage MyMethod([FromUri, FromBody] parameters)
{
    //..
}

It isn't even possible via exposing two methods:

public HttpResponseMessage MyMethod([FromUri] parameters)
public HttpResponseMessage MyMethod([FromBody] parameters)

Because they have the same signature. How to achieve this in a simple way?

Answer 1

You can't do it out of the box; if you try to use both the attributes together you will get this fine error: Can't bind parameter 'xxx' because it has conflicting attributes on it.

Two possible solution:

1. Use two different methods, but with two different verbs (one get, one post, for example) - easy way
2. Use only [FromUri] and use a custom action filter (like this ) to check for body content and, if present, manually parse it and bind it to the correct method parameters - less easy way, but more powerful.

Hope it helps :)