3.4 Watch it fail

Start the application again:

dotnet run --urls http://localhost:5080

Place an order:

curl -X POST http://localhost:5080/orders -H 'Content-Type: application/json' \
  -d '{"customerId":"ada","paymentToken":"tok_visa","lines":[{"sku":"MUG","quantity":1}]}'

{"orderId":"03cfec30-1b48-4a08-805b-12fb5f530311","total":12.00,"transactionId":"tx_4ba708d1","receiptUrl":"https://pay.example/receipts/tx_4ba708d1?key=c265bec1af1b47f5abf2f4c90daeb9d6"}

The customer gets the receipt link. Now pay with the declined token:

curl -X POST http://localhost:5080/orders -H 'Content-Type: application/json' \
  -d '{"customerId":"ada","paymentToken":"tok_chargeDeclined","lines":[{"sku":"TEE","quantity":3}]}'

"The card was declined."

That is a 422, and the log shows the three T-shirts going back:

info: Shopfront.Trains.PlaceOrder.Junctions.TakePaymentJunction[0]
      Released reservation 568df86f-59b2-437a-ab72-797459564555
fail: Trax.Effect.Services.ServiceTrain.ServiceTrain[0]
      Caught Exception (Trax.Core.Exceptions.TrainException) with Message (The card was declined.).

Place four more orders of one mug with tok_visa. The provider answers three of them, and the fourth, its fifth charge since the application started, times out with a 500:

info: Shopfront.Trains.PlaceOrder.Junctions.TakePaymentJunction[0]
      Released reservation 26db9cae-1c44-47f8-a9aa-0f0d701ab713
fail: Trax.Effect.Services.ServiceTrain.ServiceTrain[0]
      Caught Exception (System.TimeoutException) with Message (The payment provider did not answer.).

SDK Reference

UsePostgres | SaveTrainParameters | AddJunctionLogger | TraxSensitive | IFailureClassifier | Metadata

Next: 3.5 Read the runs back