public async Task <IHttpActionResult> GetSingleAsync(int id)
        {
            try
            {
                var result = await _repository.GetSuppliersAsync(id);

                if (result != null)
                {
                    var mappedResult = _mapper.Map <SupplierModel>(result);
                    return(Ok(mappedResult));
                }
                else
                {
                    return(Content(HttpStatusCode.NotFound, string.Format("Supplier with id {0} could not be found", id)));
                }
            }
            catch
            {
                return(InternalServerError());
            }
        }