Web API null parameter when POSTing from jQuery

You know that issue where you’re trying to POST a value from jQuery and in the Web API code the parameter is always null? Yeah, that sucks. Hopefully this post will help with your POST problems. I’ll keep this short and explain how I got it to work. First, my Web API method:

public class PermissionsController : ApiController {
     [System.Web.Mvc.HttpPost]
     public HttpResponseMessage Post([FromBody]DTO item)
     {
         string test = item.Name;
         return Request.CreateResponse(HttpStatusCode.OK);
     }
}

I’m passing in more than one field, so I created a data transfer object:

     public class DTO {
         public string Name { get; set; }
         public string AccessType { get; set; }
         public DTO() { }
     }

And my jQuery:

   $.ajax({
      url: 'http://localhost:33166/api/Permissions',
     type: 'POST',
     dataType: 'json',
     cache: false,
     contentType: "application/json",
     data: JSON.stringify(name),
     success: function (d) {
          alert('awesome');
     },
});
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