Swashbuckle doesn't display attribute based routing endpoints

[xjanarhe-rakbank]

VERSION:

Swashbuckle.AspNetCore and Swashbuckle.AspNetCore.Newtonsoft of version 6.8.1

STEPS TO REPRODUCE:

I have created a controller and the web api method as below,

[ApiController]
public class CustomApiController : Microsoft.AspNetCore.Mvc.Controller
{
[HttpPost]
[Route("api/custom/search")]
public JsonResult CustomSearch(CustomSearchRequest request)
{
....
....
return JsonResult(object)
}
}

In Startup.cs

ConfigureServices Method:

services.AddEndpointsApiExplorer();
services.AddSwaggerGen(options =>
{
options.ResolveConflictingActions(apiDescriptions => apiDescriptions.First());
});

In Configure method:

app.UseSwagger();
app.UseSwaggerUI();

app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(name: "Default", pattern: "{controller}/{action}/{id?}"); // Default controllers
endpoints.MapControllers(); // Attribute Routing
endpoints.MapControllerRoute(
name: "CustomSearch",
pattern: "api/custom/search",
defaults: new { controller = "CustomApi", action = "CustomSearch" }
);
}

EXPECTED RESULT:

The API endpoint is not shown in swagger UI

ACTUAL RESULT:

It shows all other APIs from the library. The custom API needs to be listed in the Swagger UI.