Authorize attribute on entire project in .net mvc for security

Question

I am applying authorize attibutes on each classes.

So is it possible to avoid this, and secure my entire web application at once?

Something like at "Namespace" level?

I am using .net core mvc application.

Answer 1

None of the above worked. But I got the solution. So following worked for me.

services.AddMvc(config =>
            {
                var policy = new AuthorizationPolicyBuilder()
                             .RequireAuthenticatedUser()
                             .Build();
                config.Filters.Add(new AuthorizeFilter(policy));
            });