CODE EXAMPLE FOR CSHARP

blazor wasm roles not working

using App.Shared;
...

namespace App.Server
{
    public class Startup
    {

        ...

        public void ConfigureServices(IServiceCollection services)
        {
            ...

            services.AddDefaultIdentity<AppUser>(options =>
                {
                    options.SignIn.RequireConfirmedAccount = true;
                })
                .AddRoles<IdentityRole>()
                .AddEntityFrameworkStores<AppDb>();

            services.AddIdentityServer()
                .AddApiAuthorization<AppUser, AppDb>(options =>
                {
                    // https://github.com/dotnet/AspNetCore.Docs/issues/17649
                    options.IdentityResources["openid"].UserClaims.Add("role");
                    options.ApiResources.Single().UserClaims.Add("role");
                });
            // Need to do this as it maps "role" to ClaimTypes.Role and causes issues
            JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Remove("role");

            services.AddAuthentication()
                .AddIdentityServerJwt();

            services.AddAuthorization(options => options.AddAppPolicies());

            ...
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            ...

            app.UseAuthentication();
            app.UseAuthorization();
            app.UseIdentityServer();

            ...
        }
    }
}