public List <Transaction> GetTransactionsBySku(string sku)
{
var filteredTransactions = _context.Transactions.Where(e => e.Sku.ToUpper() == sku.ToUpper());
if (filteredTransactions.Any())
{
return(_conversionService.ConvertToEUR(filteredTransactions).ToList());
}
return(new List <Transaction>());
}