OData V4 attribute routing not using the right action - odata

Question

i am experiencing a problem with attribute routing in OData V4. I have a simple Customers model class and a Controller, which has 2 Get methods. However, whenever i try to GET a specific Customer like /Customers(7) , it always uses the second Get method to get all customers, but never breaks into the method with the id parameter. What am i missing here? Thank you!
The controller:
using System.Data;
using System.Data.Entity.Infrastructure;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Web.Http;
using System.Web.OData;
using System.Web.OData.Routing;
using API.Models;
namespace API.Controllers
{
public class CustomersController : ODataController
{
private OContext db = new OContext();
// GET: Customers(5)
[HttpGet]
[ODataRoute("Customers({id:int})")]
[EnableQuery]
public SingleResult<Customers> Get([FromODataUri] int id)
{
IQueryable<Customers> result = db.Customers.Where(p => p.Id == id).AsQueryable();
return SingleResult.Create(result);
}
// GET: Customers
[HttpGet]
[ODataRoute("Customers")]
[EnableQuery]
public IQueryable<Customers> Get()
{
return db.Customers.AsQueryable();
}
}
}
The WebApiConfig:
using System.Web.Http;
using System.Web.OData.Builder;
using System.Web.OData.Extensions;
using API.Models;
using Microsoft.OData.Edm;
namespace API
{
public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
// Web API configuration and services
config.MapHttpAttributeRoutes();
config.MapODataServiceRoute("odata", null, GetEdmModel());
config.EnsureInitialized();
}
private static IEdmModel GetEdmModel()
{
ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
builder.Namespace = "API.Controllers";
builder.ContainerName = "DefaultContainer";
builder.EntitySet<Customers>("Customers").EntityType.HasKey(c => c.Id);
builder.EntitySet<Customers_CustomField> ("Customers_CustomFields");
var edmModel = builder.GetEdmModel();
return edmModel;
}
}
}