public ActionResult <IEnumerable <ErrorViewModel> > GetAllByEnvironment(string environment) { if (!environments.Contains(environment)) { return(BadRequest("Environment doesn't exist")); } IEnumerable <ErrorViewModel> errors = repoError.FindByEnvironment(environment) .Select(error => _mapper.Map <ErrorViewModel>(error)) .ToList(); if (errors.Count() == 0) { return(NoContent()); } return(Ok(errors)); }