Go Ecosystem

Core Concepts

• Errors are values: Handle explicitly with if err != nil; use %w to wrap for errors.Is/errors.As
• Interfaces: Accept interfaces, return concrete types; define where used, not implemented; keep small (1-3 methods)
• Concurrency: Goroutines for concurrency, channels for communication, context.Context for cancellation
• Zero values: Design types so zero value is useful (var buf bytes.Buffer ready to use)

Naming Conventions

• Packages: lowercase, single-word (no underscores)
• Exported: PascalCase; Unexported: camelCase
• Single-method interfaces: method name + "er" (Reader, Writer, Handler)
• Acronyms uppercase: HTTPClient, userID
• No "Get" prefix for getters: func (u *User) Name() string

Error Handling