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Concepts

The Notification Service is an application that produces Payment Status Notifications, based Domain Events it receives. It does this by implementing an observer pattern where it reports a configurable subset of domain events to external system.

The Payment Status Notification messages are sent as PAIN.002 messages in JSON format.

  • Data Flows - The Notification Service essentially has two key data flows which are worth understanding, to show how various components are linked together to provide a solution which can produce notifications.

  • Resequencer - The Resequencer Pattern is used for reordering of messages before processing.