Resilient Event-Driven Architecture for Finance

This post contrasts choreography-based Event-Driven Architecture (EDA) with Temporal's durable execution paradigm. It highlights the problems with choreography-based EDA, such as scattered business logic, hidden coupling, complex error handling, and limited observability. It then explains how Temporal's durable execution addresses these issues by centralizing business logic in Workflows, providing stateful management, integrated error handling, and unified observability. Best practices for implementing EDA with Temporal are also provided, including treating Workflows as code, modular Activities, error recovery and compensation, dynamic workflow design, and incremental adoption.