implement-notification-flow

Multi-channel notifications coordinate delivery across email, SMS, and push by applying a port/adapter architecture with provider adapters. This design routes domain events like transactions and alerts through a single, standardized notification service.

The template engine renders message content while the per-user preference system checks individual channel settings. This ensures the notification service respects user choices, delivering messages only through the channels users have explicitly enabled.

Auditing transaction alerts and user reminders is handled through audit-ready REST endpoints. These endpoints expose the notification service to domain services and external systems, ensuring reliable delivery and auditable trails across all channels.

A provider-agnostic architecture for SMS and push notifications is implemented using a hexagonal port/adapter design. This allows you to wire different external providers into the notification service without changing core domain logic.

Multi-channel notification systems need audit-ready REST endpoints to guarantee reliable delivery and create auditable trails. This integration allows domain services to trigger notifications while maintaining compliance for banking events.

Provider adapters are required to automate email and SMS notifications within the hexagonal architecture. They bridge the core notification service to external delivery networks, enabling provider-agnostic message routing.