Dependency injection with asp.net identity and property injection with dbcontext

Question

I configure asp.net identity using Simple Injector

 var container = new Container();
 container.Options.DefaultScopedLifestyle = new WebRequestLifestyle();
 //Identity
 container.RegisterPerWebRequest<AppDbContext>();
 container.RegisterPerWebRequest<IUserStore<User, int>>(() => new UserStore<User, Role, int, UserLogin, UserRole, UserClaim>(new AppDbContext()));
 container.RegisterPerWebRequest<IRoleStore<Role, int>>(() => new RoleStore<Role, int, UserRole>(new AppDbContext()));
 container.RegisterPerWebRequest<AppRoleManager>();
 container.RegisterPerWebRequest<AppUserManager>();
 container.RegisterPerWebRequest<AppSignInManager>();
 container.RegisterPerWebRequest(() =>
 {
 if (HttpContext.Current != null && HttpContext.Current.Items["owin.Environment"] == null && container.IsVerifying)
 {
 return new OwinContext().Authentication;
 }
 return HttpContext.Current.GetOwinContext().Authentication;
 });

And configure a property injection for BaseController and my DbContext

My BaseController

 public class BaseController : Controller
 {
 public ISessionContext SessionContext { get; set; }
 }

My register in simple injector

 container.Register<ISessionContext,ClaimsSessionContext>();
 container.RegisterInitializer<BaseController>(ctrl =>
 {
 ctrl.SessionContext = container.GetInstance<ISessionContext>();
 });

My DbContext

 public class AppDbContext : IdentityDbContext<User, Role, int, UserLogin, UserRole, UserClaim>
 {
 public ISessionContext SessionContext { get; set; }
 public AppDbContext()
 : base("AppConnection")
 {
 }
 public static AppDbContext Create()
 {
 return new AppDbContext();
 }

And my simple injector register for property injection

 container.RegisterInitializer<AppDbContext>(db =>
 {
 db.SessionContext = container.GetInstance<ISessionContext>();
 });

I wonder if there would be no problem injecting SessionContext property next to my DbContext, for every request it is also instantiated

Suggestions? This ok ?

• Andez: Would AppDbContext fail (throw exception) if the SessionContext is not set? Is ISessionContext like a current user session? +1 for SimpleInjector - my current favourite DI Container.

Answer 1

There is any specific need to register those per single request ?

• IUserStore
• IRoleStore
• AppRoleManager
• AppRoleManager
• AppRoleManager

Weird implementations apart they should be fine as "per application" removing a lot of overhead

Also, you probably can add the sessioncontext to AppDbContext constructor and make a single registration