Grouping Controllers in Swagger

Startup.cs

[SuppressMessage("Performance", "CA1822:Mark members as static", Justification = "<Pending>")]
public void ConfigureServices(IServiceCollection services)
{
    services.AddControllers();

    services.AddCors();

    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new OpenApiInfo
        {
            Version = "v1",
            Title = $"{Configuration["SwaggerDocs_ProductName"]} API",
            Contact = new OpenApiContact
            {
                Name = Configuration["SwaggerDocs_ContactName"],
                Email = Configuration["SwaggerDocs_ContactEmail"]
            }
        });

        var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
        var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);

        c.IncludeXmlComments(xmlPath);

        c.TagActionsBy(api =>
        {
            if (api.GroupName != null)
            {
                return new[] { api.GroupName };
            }

            if (api.ActionDescriptor is ControllerActionDescriptor controllerActionDescriptor)
            {
                return new[] { controllerActionDescriptor.ControllerName };
            }

            throw new InvalidOperationException("Unable to determine tag for endpoint.");
        });

        c.DocInclusionPredicate((name, api) => true);
    });
}