Building a Multi-Channel Notification Center: Template Design, Async Processing & Reliable Retry Patterns
This article details the architecture and implementation of a production-grade notification center that abstracts channel differences, uses Thymeleaf for template rendering, employs Channel/Provider abstractions for multi-vendor support, handles async execution via thread pools and message queues, and ensures reliability through persistent task tracking, exponential backoff retries, rate limiting, idempotency, and audit logging.
