Question 1

How to set up a basic message bus in Go using this library?

Accepted Answer

The documentation provides a basic example where you create a bus instance, subscribe handlers to topics with `bus.Subscribe()`, and publish messages with `bus.Publish()`. It's designed to be minimal, often requiring just a few lines of code for initial integration.

Question 2

message-bus vs Go channels: which is better for internal communication?

Accepted Answer

message-bus is higher-level and ideal for decoupling multiple components with pub/sub patterns across an application, while Go channels are lower-level and better for direct goroutine synchronization. Choose message-bus when you need asynchronous, topic-based messaging without tight coupling.

Question 3

Does message-bus support wildcard topics or pattern matching?

Accepted Answer

No, the library uses simple string topics without built-in wildcard or pattern matching support, as indicated in the documentation. You may need to implement topic hierarchies manually for more flexible subscriptions.

Question 4

How to handle errors in message-bus subscribers?

Accepted Answer

The library does not provide built-in error handling for subscribers, so you must implement error recovery within your handler functions, such as using panic recovery or logging errors, to prevent application crashes.

Question 5

Is message-bus thread-safe for concurrent publishing?

Accepted Answer

Yes, benchmark tests use multiple CPUs, and the library is designed to be thread-safe for concurrent operations, as shown in the performance metrics, making it suitable for high-throughput scenarios.

Question 6

Can I use message-bus in a microservices architecture?

Accepted Answer

message-bus is limited to in-process communication, so it's best used within individual microservices for internal decoupling. For inter-service messaging, you'd need a distributed message broker like NATS or RabbitMQ alongside it.

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