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name: go-practices description: Go conventions for hexagonal architecture, project structure, error handling, testing, and observability. Use when writing Go services.

go-practices

Quick Start

1. Follow hexagonal architecture: business logic in pkg/api/business/, adapters in pkg/api/adapters/
2. Use snake_case for all Go files
3. Wrap errors: fmt.Errorf("%w: %w", ErrSentinelError, err)
4. Run tests with race detection: go test -race ./...

Key Principles

• Business logic has NO external dependencies
• All external interactions through interfaces
• Composition via AppContext (composition root)
• Table-driven tests with t.Parallel()
• OpenTelemetry for observability

References

See rules.md for complete conventions.