What are the best practices for implementing the event bus pattern?

What are the best practices for implementing the event bus pattern?

The event bus pattern is great for decoupling components. Key practices include using a single event bus, ensuring event immutability, and implementing error handling.

Can you explain why immutability is important for events?

Immutability ensures that once an event is created, it cannot be changed. This prevents unintended side effects and makes it easier to track event history.

What about performance considerations?

For performance, consider batching events and using asynchronous processing to avoid blocking operations. Also, monitor the event bus for bottlenecks.

Are there any common pitfalls to avoid?

Yes, common pitfalls include overusing the event bus for every interaction, which can lead to complexity, and not properly documenting events, making it hard to understand the system.