Call web api c# by passing oauth token along with parameter

Question

I'm using custom oauth in web API for authentication. Now i want to call web api method from MVC controller. Web API method:

public class UserController : ApiController
{
    [Authorize(Roles = "Admin")]
    [HttpPost]
    [ActionName("UserById")]
    public IEnumerable GetUserById(string idValue)
    {
        long ID = idValue != "" ? Convert.ToInt64(idValue) : -1;
        using (var db = new DataModelContext())
        {
            IEnumerable query = (from b in db.User.Include(u => u.EmailAddresses).ToList() 
               where b.Id == ID
               select new { b.Id, UserName = b.UserName, b.EmailAddresses }).ToList();

            return query;
        }
    }
}

MVC controller:

public class PagesController : Controller
{
    public ActionResult GetUserById(long id)
    {
        string baseUrl = Common.GetAPIUrl();
        HttpClient client = new HttpClient();
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        client.BaseAddress = new Uri(baseUrl);
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", Common.GetoAuth().access_token);

        var values = new JObject();
        values.Add("idValue",id.ToString());

        HttpContent content = new StringContent(values.ToString(), Encoding.UTF8, "application/json");

        HttpResponseMessage response = client.PostAsJsonAsync(baseUrl + "/api/User/UserById", content).Result;

        string resultJSON = response.Content.ReadAsStringAsync().Result;

        return View("UserDetail",resultJson);
    }
}

Some how its not working, i'm not able to rectify issue why its not working. When i'm calling API direct URL from postman its working fine. like http://localhost:55362/api/UserById/2 or http://localhost:55362/api/UserById?idvalue=2. its not working for only httpclient call.

Answer 1

Incase if you still stuck up with this issue. Please do the following to make it work.

WebApiConfig: Action Api should come above the controller Route

       config.Routes.MapHttpRoute(
           name: "ActionApi",
           routeTemplate: "api/{controller}/{Action}/{id}",
           defaults: new { id = RouteParameter.Optional }
       );

        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );

On the Api Method: Add the "FromBody" attribute to the parameter.

[Authorize(Roles = "Admin")]
[HttpPost]
[ActionName("UserById")]
public IEnumerable GetUserById([FromBody]string idValue)
{
    long ID = idValue != "" ? Convert.ToInt64(idValue) : -1;
    using (var db = new DataModelContext())
    {
        IEnumerable query = (from b in db.User.Include(u => u.EmailAddresses).ToList() 
           where b.Id == ID
           select new { b.Id, UserName = b.UserName, b.EmailAddresses }).ToList();

        return query;
    }
}

Let me know if this works