golang-patterns

Topics in the source

• Go Patterns
• Functional Options
• Small Interfaces
• Dependency Injection
• Concurrency Patterns
• Worker Pool
• Context Propagation
• Error Handling

This skill provides comprehensive Go patterns extending common design principles with Go-specific idioms. Use the functional options pattern for flexible constructor configuration: Benefits: Backward compatible API evolution Optional parameters with defaults Self-documenting configuration Define interfaces where they are used, not where they are implemented. Principle: Accept interfaces, return structs Benefits: Easier testing and mocking Loose coupling Clear dependencies Use constructor functions to inject dependencies: Pattern: Constructor functions (New prefix) Explicit dependencies as parameters Return concrete types Validate dependencies in constructor Always pass context as first parameter: Package names: lowercase, single word Avoid stutter: user.User not user.UserModel Use internal/ for private code Keep main package minimal Designing Go APIs and packages Implementing concurrent systems Structuring Go projects Writing idiomatic Go code Refactoring Go codebases