One under-appreciated aspect of designing an Event-Driven Architecture (EDA) is how much information you should include in your events.
Do you send light events or rich events?
Or perhaps you would send both, but in different circumstances?
In this post, let’s talk about the pros & cons of each and how they fit into my mental model of DDD and EDA.
This article is about best practices for building event-driven architectures on AWS, with a focus on wrapping events in custom envelopes when using EventBridge.
While EventBridge provides metadata by default, a custom envelope allows for a standardized, consistent structure across all of your events, making it easier to manage and evolve the system over time.
By providing your own metadata, you can gain better interoperability between different services, end-to-end observability, idempotency control and versioning.
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