I would like to have authentication and authorization performed in a separate microservice. At the same time, my authorization microservice is not an identity provider, but rather a simple API.

How can I configure which endpoint in ASP.NET to use for authentication and what data to send to it before accessing the destination endpoint? I found the following method in the documentation:

services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
    .AddJwtBearer(options =>
    {
        // base-address of your identityserver
        options.Authority = "https://demo.identityserver.io";

        // name of the API resource
        options.Audience = "api1";
    });

Do I understand correctly that this is what I need, but it uses an identity server?

How can I accomplish this without using one?