Web Api Odata not working - asp.net-web-api

Question

I created a Web Api OData controller and try to view it directly but it's not working.
WebApiConfig config
public static void Register(HttpConfiguration config)
{
config.Routes.MapODataRoute("odata", "odata", GetEdmModel());
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
public static IEdmModel GetEdmModel()
{
ODataModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Customer>("Customers");
builder.Namespace = "PackageManager.Models";
return builder.GetEdmModel();
}
in App start calling registering:
WebApiConfig.Register(GlobalConfiguration.Configuration);
Api controller:
public class CustomersController : EntitySetController<Customer, string>
{
NorthwindDbContext _Context = new NorthwindDbContext();
[Queryable]
public override IQueryable<Customer> Get()
{
return _Context.Customers;
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
_Context.Dispose();
}
}
Try to access :
localhost:2375/odata/Customers
then always getting error:
The resource cannot be found.

Answer 1

Just add follow to web.config on system.webServer\handler:
<add name="ApiURIs-ISAPI-Integrated-4.0" path="*" verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
or replace
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
to
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*" verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
(Different - one dot in path-attribute)

Answer 2

#Parwej - Try writing the below code in your webapi.config instead of your code. Also make sure that proper case is followed in your URL as Odata url is case sensitive. And dont forget to use using System.Web.Http.OData instead of System.Web.Odata in controller. This should work.
public static void Register(HttpConfiguration config)
{
ODataModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Customer>("Customers");
config.Routes.MapODataRoute("odata", "odata", builder.GetEdmModel());
}