NSwag.AspNetCore Swagger document generation not using Name property from HTTP verb attribute as Operation ID

I’m using version 13.1.6 the NSwag.AspNetCore NuGet package and the Swagger document generation is not correctly setting Operation ID of the API endpoints (the framework of my website project is netcoreapp2.2).

It is using the {controller name}_{HTTP method type} convention instead of honouring the Name property on the HTTP verb attribute.

Here is a sample of my code and generated Swagger document.

Controller

    [ApiController]
    [Route("[controller]")]
    public class UsersController : Controller
    {
        [HttpPost(Name = "CreateUser")]
        [ProducesResponseType(200)]
        [ProducesResponseType(400, Type = typeof(ValidationProblemDetails))]
        public async Task<IActionResult> Post([FromBody]RegistrationRequest request)
        {
            ...
        }
    }

Startup

    public class Startup
    {
        public static void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            ...
            app.UseOpenApi();
            app.UseSwaggerUi3();

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}");

                routes.MapRoute(
                    name: "single",
                    template: "{controller=Home}/{id}");
            });
        }

        public void ConfigureServices(IServiceCollection services)
        {
            ...
            services
                .AddMvc(options =>
                {
                    options
                        .Conventions
                        .Add(new KebabCaseRouteTokenReplacementControllerModelConvention());
                })
                .SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
            ...
            services.AddSwaggerDocument(options =>
            {
                options.Title = "My API";
                options.Version = "v1";
            });
        }
    }

Swagger JSON

{
...
  "paths": {
       /users": {
      "post": {
        "tags": [
          "Users"
        ],
        "operationId": "Users_Post",
        ...
     }
   }
  ...
}

Based on the Name property on the HttpPostAttribute, I would have expected the operationId in the JSON to be CreateUser, but it is Users_Post

[RicoSuter]

Is there a way to achieve the same

https://github.com/RicoSuter/NSwag/blob/master/src/NSwag.Annotations/OpenApiOperationAttribute.cs#L19

or customize the default generation in any way?

You can implement a custom operation processor and set the operation ids however you want.

But it might make sense to also consider the attribute Name when defined out of the box.

[Leon99]

@TheMagnificent11 did you manage to solve this? I have the same issue.

Swashbuckle used the Name property to generate operationId. Is there a way to achieve the same or customize the default generation in any way?