No authenticationScheme was specified, and there was no DefaultChallengeScheme found with default authentification and custom authorization

Question

I have a .NET Core 2.0 app and have a problem with authorization. I want to use custom authorization with special requests. Header and standard default authentication. First

Answer 1

Many answer above are correct but same time convoluted with other aspects of authN/authZ. What actually resolves the exception in question is this line:

services.AddScheme(YourAuthenticationSchemeName, options =>
    {
        options.YourProperty = yourValue;
    })