HttpContext Authentication in ASP.Net Core 2.0

Hello guys.

I have the problem which I am not able to solve by myself, friends or Google.

I want to authenticate user in my core 2.0 web application. The problem is that I can’t use UserManager  or  SignInManager,  because I have stored users in different project. I have identity server, user will authenticate via extension grant, and in my application  I am getting **ClientPrincipal (**There is information about user, and IsAuthenticated property is also true):

**var principal = await GetPrincipalAsync(tokenResponse.AccessToken, model.UserId);**

After getting principal I try to sign in with HttpContext:

await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, principal);

And here is how my startup class looks:

public void ConfigureServices(IServiceCollection services)
            services.AddSingleton<IActionContextAccessor, ActionContextAccessor>();
            services.AddScoped<IUrlHelper>(factory =>
                var actionContext = factory.GetService<IActionContextAccessor>()
                return new UrlHelper(actionContext);

 **services.AddAuthentication(options =\> { options.DefaultScheme = "Cookies"; options.DefaultChallengeScheme = "oidc"; }) .AddCookie("Cookies") .AddOpenIdConnect("oidc", options =\> { options.SignInScheme = "Cookies"; options.Authority = Configuration.GetValue\<string\>("Authority"); options.RequireHttpsMetadata = false; options.ClientId = "TPay"; options.SaveTokens = true; });** }

        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
**app.UseAuthentication();** }

I even tryed to map principal HttpContexts User:

HttpContext.User = principal;

But it’s pointless, After SignInAsync   HttpContext.User IsAuthenticated is false, and after mapping principal to user, it is lost in the end. I mean when the page is called there is no data in HttpContext.

Will be great if anyone could help me and in case of questions, feel free to ask.

Hi @giorgiis,

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