I've read every Stack Overflow question I can find but to no avail. When I installed the Ninject packages through NuGet, the NinjectWebCommon.cs class was not installed, so I coded up my own (below). I installed Ninject, Ninject.WebCommon, Ninject.Webcommon.Webhost, Ninject.WebApi, Ninject.WebApi.DependencyResolver. However, I am getting the well-known message in my controller that I must have a parameterless controller, which of course I don't want since I want to require DI.
Here's the Ninject class I created:
public static class NinjectWebCommon
{
private static readonly Bootstrapper bootstrapper = new Bootstrapper();
/// <summary>
/// Starts the application
/// </summary>
public static void Start()
{
DynamicModuleUtility.RegisterModule(typeof(OnePerRequestHttpModule));
DynamicModuleUtility.RegisterModule(typeof(NinjectHttpModule));
bootstrapper.Initialize(CreateKernel);
}
/// <summary>
/// Stops the application.
/// </summary>
public static void Stop()
{
bootstrapper.ShutDown();
}
/// <summary>
/// Creates the kernel that will manage your application.
/// </summary>
/// <returns>The created kernel.</returns>
private static IKernel CreateKernel()
{
var kernel = new StandardKernel();
kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);
kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();
RegisterServices(kernel);
System.Web.Http.GlobalConfiguration.Configuration.DependencyResolver = new Ninject.WebApi.DependencyResolver.NinjectDependencyResolver(kernel);
return kernel;
}
/// <summary>
/// Load your modules or register your services here!
/// </summary>
/// <param name="kernel">The kernel.</param>
private static void RegisterServices(IKernel kernel)
{
//kernel.Load(Assembly.GetExecutingAssembly());
kernel.Bind<IUnitsSL>().To<UnitsSL>();
kernel.Bind<IForecastLogic>().To<ForecastLogic>();
kernel.Bind<IForecastRepositoryAsync>().To<ForecastRepositoryAsync>();
}
}
Here is the controller
namespace ForecastApi.Controllers
{
public class ForecastController : ApiController
{
private IUnitsSL _serviceLayer { get; set; }
private readonly IForecastLogic _forecastLogic;
public ForecastController(IForecastLogic forecastLogic)
{
_forecastLogic = forecastLogic;
_serviceLayer = new UnitsSL();
}
[Route("projection")]
[HttpPost]
public async Task<IHttpActionResult> GetDemandForecast([FromBody]
ProjectionRequestModel model)
{
var retVal = await _forecastLogic.GetDemandForecastData(model);
return Ok(retVal);
}
}
The exact wording of the error message when I test this through Postman is: An error occurred when trying to create a controller of type 'ForecastController'. Make sure that the controller has a parameterless public constructor."
If it helps, I am mocking my unit tests for the business calls and they are working with the Ninject library and Moq. It is the constructor that seems to fail.
TIA
