Question 1

How to implement a circuit breaker in Go?

Accepted Answer

The stability patterns section includes a circuit-breaker.md file with a Go implementation using channels and timeouts to halt requests during failures, but you'll need to integrate it into your codebase manually.

Question 2

Is go-patterns a library or just examples?

Accepted Answer

It's primarily a reference with code examples and documentation, not a full library; you copy snippets from files like functional-options.md or fan_in.md rather than installing via go modules.

Question 3

Go patterns vs traditional design patterns: what's different?

Accepted Answer

Go Patterns adapts classic patterns like Observer and Singleton to Go's idiomatic style, emphasizing concurrency with patterns like Bounded Parallelism, whereas traditional references often use object-oriented languages without Go-specific optimizations.

Question 4

Best way to do fan-out in Go?

Accepted Answer

Check the messaging patterns section for fan_out.md, which provides examples using goroutines and channels to distribute tasks to multiple workers efficiently, but ensure error handling is added for production use.

Question 5

How to use functional options for API design?

Accepted Answer

The idioms section has functional-options.md detailing how to create flexible APIs with defaults and overrides, using closures and variadic functions in Go for cleaner configuration.

Question 6

Is this project actively maintained?

Accepted Answer

Based on the README, many patterns are incomplete (marked ✘), suggesting limited updates; check the GitHub repository for recent commits or issues to gauge current activity.

go-patterns

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