bitforum-backend/Web.Api/Extensions/EndpointExtensions.cs

using System.Reflection;

namespace Web.Api.Extensions;

public static class EndpointExtensions
{
    public static IServiceCollection AddEndpoints(this IServiceCollection services, Assembly assembly)
    {
        var endpointTypes = assembly.DefinedTypes.Where(type => type is {
            IsAbstract: false,
            IsInterface: false
        } && type.IsAssignableTo(typeof(IEndpoint))).Select(type => ServiceDescriptor.Transient(typeof(IEndpoint), type)).ToArray();

        foreach (var descriptor in endpointTypes)
        {
            services.Add(descriptor);
        }

        return services;
    }

    public static IApplicationBuilder MapEndpoints(this WebApplication app)
    {
        var endpoints = app.Services.GetRequiredService<IEnumerable<IEndpoint>>();

        foreach (var endpoint in endpoints)
        {
            endpoint.MapEndpoint(app);
        }

        return app;
    }
}