Web Api 2不反序列化JSON

Question

I'm trying to call a web service API in my application and I am passing in a parameter, but for some reason, its not deserializing the JSON. Instead, its just passing in my JSON as a string. Here is the API code:

[Route("api/v1/images/GetMemberImageUrl", Name = "ApiImagesGetMemberImageUrl")]
[HttpPost]
public IHttpActionResult GetMemberImageUrl([FromBody]object memberId)
{
    // memberId is a string and it contains "{memberId: 18}"

    // Do stuff
    // ...
}

Note that I originally had [FromBody]int memberId . I got a bad request, so I changed it to object so I could see what exactly was getting passed in. What's getting passed in is a string which contains "{memberId: 18}" .

Here is my AJAX call code to the API:

$.ajax({
    type: 'POST',
    cache: false,
    timeout: 30000,
    data: JSON.stringify({memberId: @Infrastructure.Member.GetAuthenticatedMembersId()}),
    url: '@Url.HttpRouteUrl("ApiImagesGetMemberImageUrl", null)',
    contentType: "application/json",
    success: function(retval) {
        // Do more stuff
    }
});

Any idea why the model binder is not deserializing my JSON?

Answer 1

Try to define your model like

public class MyModel
{
    public string MemberId { get; set; }
}

Or post your data as simple value without defining JSON object {memberId: 18} . Simply like

"18"

Then it will be mapped to your property memberId, even if property will have another name.

More reading