Global Exception Filter C# .Net (Dot Net)

Add the following code to services where MVC service is registered.

 services
       .AddMvc(options=>options.Filters.Add(typeof(GlobalExceptionFilter)))

Example of global filter class (GlobalExceptionFilter) registered above with MVC

namespace TestCaseManagementTool.Infrastructure
{
    public class GlobalExceptionFilter : IExceptionFilter
    {
        public void OnException(ExceptionContext context)
        {
            HandleException(context).GetAwaiter().GetResult();
            context.ExceptionHandled = true;
        }

        private async Task HandleException(ExceptionContext context)
        {
            var contextt = context;
            var code = (BaseException)context.Exception;
            if(code.Code == 4001)
            context.Result = new BadRequestObjectResult(JsonErrors.RequestedDataError);
            context.HttpContext.Response.StatusCode = (int)HttpStatusCode.BadRequest;
        }
    }
}