WebAPI and ODataController return 406 Not Acceptable

Question

Before adding OData to my project, my routes where set up like this:

       config.Routes.MapHttpRoute(
            name: \"ApiById\",
            routeTempl         


        

Answer 1

For me the problem was, that I used LINQ and selected the loaded objects directly. I had to use select new for it to work:

return Ok(from u in db.Users
          where u.UserId == key
          select new User
          {
              UserId = u.UserId,
              Name = u.Name
          });

This did not work:

return Ok(from u in db.Users
          where u.UserId == key
          select u);