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1.0 KiB

paths
paths
**/*.go
**/go.mod
**/go.sum

Go パターン

このファイルは common/patterns.md を Go 固有のコンテンツで拡張します。

Functional Options

type Option func(*Server)

func WithPort(port int) Option {
    return func(s *Server) { s.port = port }
}

func NewServer(opts ...Option) *Server {
    s := &Server{port: 8080}
    for _, opt := range opts {
        opt(s)
    }
    return s
}

小さなインターフェース

インターフェースは実装される場所ではなく、使用される場所で定義する。

依存性注入

コンストラクタ関数を使用して依存関係を注入する:

func NewUserService(repo UserRepository, logger Logger) *UserService {
    return &UserService{repo: repo, logger: logger}
}

リファレンス

スキル: golang-patterns で並行処理、エラーハンドリング、パッケージ構成を含む包括的な Go パターンを参照してください。