Automatically / Dynamically create Swagger documentation for all API Endpoints

            // Generate Documentation for each endpoint automatically
            var actionDescriptors = actionDescriptor.ActionDescriptors.Items.ToList();
            actionDescriptors.ForEach(x =>
            {
                IFilterMetadata noContent = new ProducesResponseTypeAttribute(204);
                x.FilterDescriptors.Add(new FilterDescriptor(noContent, 0));

                IFilterMetadata unauth = new ProducesResponseTypeAttribute(401);
                x.FilterDescriptors.Add(new FilterDescriptor(unauth, 0));

                IFilterMetadata serverError = new ProducesResponseTypeAttribute(500);
                x.FilterDescriptors.Add(new FilterDescriptor(serverError, 0));
            });

Startup.cs example for .NET Core API w/ Swagger

using Swashbuckle.AspNetCore.Swagger;

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvcCore().AddApiExplorer();
    services.AddSwaggerGen();
    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new Info { Title = "My API", Version = "v1" });
    });

    services.AddTransient<ISomeInterface, SomeDependency>();
}



// -----------------

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
        app.UseSwagger();
        app.UseSwaggerUI(c =>
        {
            c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API");
        });
    }
    app.UseMvc();
}