public async Task Handle(TransactionCreatedEvent e)
{
FilterDefinition <CardListQueryModel> filter = Builders <CardListQueryModel> .Filter.Eq("Id", e.Data.CardId);
var cardList = await readDbContext.CardListMaterializedView
.Find(filter)
.FirstOrDefaultAsync();
var transactionList = new TransactionListQueryModel()
{
Id = e.Data.Id,
Amount = e.Data.Charge.Amount,
ChargeDate = e.Data.ChargeDate,
CardHolder = cardList.CardHolder,
CardNumber = cardList.Number,
CurrencyCode = e.Data.Charge.CurrencyCode,
UniqueId = e.Data.UniqueId
};
if (!cardList.HighestTransactionAmount.HasValue || e.Data.Charge.Amount > cardList.HighestTransactionAmount)
{
cardList.HighestChargeDate = e.Data.ChargeDate;
cardList.HighestTransactionId = e.Data.Id;
cardList.HighestTransactionAmount = e.Data.Charge.Amount;
}
cardList.TransactionCount += 1;
await cache.Delete(nameof(CardListQueryModel));
await readDbContext.TransactionListMaterializedView.InsertOneAsync(transactionList);
await readDbContext.CardListMaterializedView.ReplaceOneAsync(filter, cardList, new UpdateOptions { IsUpsert = true });
}
private void AssertProperties(TransactionListQueryModel queryModel, Transaction transaction, CardListQueryModel cardList)
{
Assert.Equal(queryModel.Id, transaction.Id);
Assert.Equal(queryModel.Amount, transaction.Charge.Amount);
Assert.Equal(queryModel.CurrencyCode, transaction.Charge.CurrencyCode);
Assert.Equal(queryModel.ChargeDate, transaction.ChargeDate);
Assert.Equal(queryModel.UniqueId, transaction.UniqueId);
Assert.Equal(queryModel.CardHolder, cardList.CardHolder);
Assert.Equal(queryModel.CardNumber, cardList.Number);
}