How to use Roles in ASP.NET Core 2.1?

Question

I\'ve created a test project using:

dotnet new razor --auth Individual --output Test

This creates a Startup.cs that contains:

p         


        

Answer 1

I also fought with this problem a while ago. I couldn't make roles to work.

In my project I used ASP.NET Core 2.1 (it could be fixed in 2.2, see link) and also scaffolded some pages.

After long searches on the internet I found this solution (which is also mentioned above in Issue 1813)

The solution was for me (as proposed in the article) to add the following line with IUserClaimsPrincipalFactory:

        services.AddScoped, 
            UserClaimsPrincipalFactory>();

        services.AddDefaultIdentity()
            .AddRoles()
            .AddRoleManager>()
            .AddDefaultTokenProviders()
            .AddEntityFrameworkStores();