Using both route and POST params in Web Api controller

Question

How can I set up an ApiController so that I can bind the method parameters to both a parameterized route and the request parameteres (in this case a POST, but PUTs as well)?

Something along the lines of

public class MessageController : ApiController
{
    public class Message
    {
       public string Content { get; set; }
       public int Priority { get; set; }
    }

    [Route( "Data/Message/{apiKey}/{userId}" )] 
    [HttpPost]
    public Message Post( Guid apiKey, string userId, Message msg)
    {
        // ...
    }
}

So that this would work

$.post('/Data/Message/<some key>/<some id>', { 
    Content: 'Did you receive my payment?', 
    Priority: 0 
 });

I tried the method from Accessing route and POST params in Web Api 2 Controller Method of using a class and having the parameters bound to its properties, but this does not work. The parameter is simply always null.

Jasen · Accepted Answer · 2014-09-12 19:32:44Z

4

Use the [FromBody] attribute

[Route("Data/Message/{apiKey}/{userId})]
[HttpPost]
public Message Post(Guid apiKey, string userId, [FromBody] Message msg)
{
    ...
}

Then your Message class property names should match your javascript data object.

var data = {
    Content: 'Did you receive my payment?',
    Priority: 0
};

$.post('/Data/Message/<some key>/<some id>', data);

answered Sep 12, 2014 at 19:32

Jasen

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