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Consumer Driven Contract
について考える
Sota Takahashi
Wizの開発手法
front-end back-end
API渡す
修正依頼
API(修正後)渡す
辛いときないですか??
フロントエンド
- ほしい値がない
- 不要な項目ももらってしまっている
- モックサーバーで想定してたレスポンスと違う
バックエンド
- レスポンスの設計大変
- でも修正依頼される
- そもそもフロントでほしい値って何?
一番つらいやつ
この手戻りが開発終盤で起こりがち
これやったらうまくいくかも
Consumer Driven Contract
Consumer Driven Contract とは?
消費者 駆動 契約
↓ つまり
サービスを受ける側が 主体的に動く 設計
どんなふうに進める?①
- フロントがリクエスト/レスポンスをContractとして定義
- ConsumerはContractを前提にモック化してテストを実施
どんなふうに進める?②
- ProviderはConsumerとContractを合意
- ProviderはContractが守られていることを示すテストを実施
どうなる?
front-end back-end
API渡す
修正依頼
API(修正後)渡す
こうなる
front-end back-end
②Contract渡す
④API渡す
①レスポンス設計   ③API作成
具体的には??
フロントエンドではモックサーバーとして使う
モックサーバーがそのままContractになる
Agreed導入のメリット
● フロントエンドエンジニアが欲しいカタチでAPIを貰える
● バックエンドエンジニアはビジネスロジック側の実装に集中できるようになる
● APIドキュメントが簡単に作成できる!
(Webサイトのビュー側の実装はフロントエンドエンジニアに任せられる)
お願い
現在フロントエンド2部で試験的に使ってます。
むしろ時間かかる場合あるかもしれません。許して下さい。
この施策にご興味ある方、一緒にやりましょう!!
ご静聴ありがとうございました

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Consumer driven contract について考える