I'm trying to implement a custom UserStore
for my identity models; however, I'm getting this run-time error on app startup:
InvalidOperationException: Unable to resolve service for type '[Project].Models.Identity.ApplicationUserStore' while attempting to activate '[Project].Models.Identity.ApplicationUserManager'.
Stack:
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateArgumentCallSites(Type serviceType, Type implementationType, CallSiteChain callSiteChain, ParameterInfo[] parameters, bool throwIfCallSiteNotFound) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateConstructorCallSite(Type serviceType, Type implementationType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact(ServiceDescriptor descriptor, Type serviceType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact(Type serviceType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateCallSite(Type serviceType, CallSiteChain callSiteChain) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.CreateServiceAccessor(Type serviceType) System.Collections.Concurrent.ConcurrentDictionary.GetOrAdd(TKey key, Func valueFactory) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType) Microsoft.AspNetCore.Identity.IdentityBuilder+<>c__DisplayClass22_0.b__0(IServiceProvider services) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, ServiceProviderEngineScope scope) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor.VisitCallSite(IServiceCallSite callSite, TArgument argument) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProviderEngineScope scope) Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor.VisitCallSite(IServiceCallSite callSite, TArgument argument) Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine+<>c__DisplayClass1_0.b__0(ServiceProviderEngineScope scope) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope) Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) Microsoft.Extensions.DependencyInjection.ActivatorUtilities.GetService(IServiceProvider sp, Type type, Type requiredBy, bool isDefaultParameterRequired) lambda_method(Closure , IServiceProvider , object[] ) Microsoft.AspNetCore.Mvc.Controllers.ControllerActivatorProvider+<>c__DisplayClass4_0.b__0(ControllerContext controllerContext) Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider+<>c__DisplayClass5_0.g__CreateController|0(ControllerContext controllerContext) Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync() Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter() Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context) Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync() Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync() Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext) Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
My UserStore
implementation:
public class ApplicationUserStore : IUserStore<Employee>,
IUserClaimStore<Employee>,
IUserLoginStore<Employee>,
IUserRoleStore<Employee>,
IUserPasswordStore<Employee>,
IUserSecurityStampStore<Employee>
{
#region Constructor signatures I tried for dependency injection
public ApplicationUserStore(ApplicationDbContext context, IdentityErrorDescriber describer = null)
{
}
public ApplicationUserStore(ApplicationDbContext context)
{
}
public ApplicationUserStore()
{
}
public ApplicationUserStore(DbContext context)
{
}
#endregion
...
My UserManager
implementation:
public class ApplicationUserManager : UserManager<Employee>
{
public ApplicationUserManager(ApplicationUserStore store, IOptions<IdentityOptions> optionsAccessor, IPasswordHasher<Employee> passwordHasher, IEnumerable<IUserValidator<Employee>> userValidators, IEnumerable<IPasswordValidator<Employee>> passwordValidators, ILookupNormalizer keyNormalizer, IdentityErrorDescriber errors, IServiceProvider services, ILogger<UserManager<Employee>> logger)
: base(store, optionsAccessor, passwordHasher, userValidators, passwordValidators, keyNormalizer, errors, services, logger)
{
}
}
My SignInManager
implementation:
public class ApplicationSignInManager : SignInManager<Employee>
{
public ApplicationSignInManager(ApplicationUserManager userManager, IHttpContextAccessor contextAccessor, IUserClaimsPrincipalFactory<Employee> claimsFactory, IOptions<IdentityOptions> optionsAccessor, ILogger<SignInManager<Employee>> logger, IAuthenticationSchemeProvider schemes)
: base(userManager, contextAccessor, claimsFactory, optionsAccessor, logger, schemes)
{
}
}
And, in Startup.ConfigureServices
:
...
services.AddIdentityCore<Employee>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddUserStore<ApplicationUserStore>()
.AddUserManager<ApplicationUserManager>()
.AddSignInManager<ApplicationSignInManager>()
.AddDefaultTokenProviders();
services.AddTransient<IUserStore<Employee>, ApplicationUserStore>();
...
I need to know what causes the problem, how to solve it, and whether there's a documentation anywhere for Asp.Net Core 2.1 dependency injection activator signatures.
After reviewing open-source implementation here, and here, I came up with a clue to what the issue might have been - and I guessed right. The UserStore
needed to be registered through this line in Startup.ConfigureServices
:
services.AddScoped<ApplicationUserStore>();
So, my final approach was:
...
services.AddIdentityCore<Employee>()
.AddUserManager<ApplicationUserManager>()
.AddSignInManager<ApplicationSignInManager>()
.AddDefaultTokenProviders();
services.AddScoped<IUserStore<Employee>, ApplicationUserStore>();
services.AddScoped<ApplicationUserStore>();
...
Even though, it worked without:
services.AddScoped<IUserStore<Employee>, ApplicationUserStore>();