How to use External Authentication for ASP.NET Boilerplate?

Question

I want to use External Authentication for my project. Can anyone tell me how to use External Authentication for ASP.NET Boilerplate?

Answer 1

From the documentation on External Authentication:

UserManager defines an extension point named 'external authentication source'. We can create a class derived from IExternalAuthenticationSource and register to the configuration. There is DefaultExternalAuthenticationSource class to simplify implementation of IExternalAuthenticationSource. Let's see an example:

public class MyExternalAuthSource : DefaultExternalAuthenticationSource<Tenant, User>
{
    public override string Name => "MyCustomSource";

    public override Task<bool> TryAuthenticateAsync(string userNameOrEmailAddress, string plainPassword, Tenant tenant)
    {
        // Authenticate user and return true or false
    }
}