SaaSus API リクエストへの trace_id 自動引継#12
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Apr 22, 2026
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概要
フロントエンドから送信される
X-Saasus-Trace-Idヘッダーを受け取り、SaaSus SDK 経由の API リクエストに自動伝播する仕組みを追加しました。これにより、フロントエンドから SaaSus API までのリクエストを横断的にトレースできるようになります。変更内容
main.goCORS 設定:
AllowHeadersにX-Saasus-Trace-Idを追加し、フロントエンドからのヘッダー送信を許可ミドルウェア追加:
extractTraceIdEcho()をグローバルミドルウェアとして登録extractTraceIdEcho()関数の新規実装: リクエストヘッダーからX-Saasus-Trace-Idを取得し、ctxlib.XSaaSusTraceIdKeyとしてcontext.Contextに格納。SDK が API 呼び出し時にコンテキストから trace_id を自動的に読み取り、SaaSus API へ伝播する動作フロー
Client → [X-Saasus-Trace-Id header] → Echo middleware → context.Context に格納 → SaaSus SDK → SaaSus API備考
既存の
extractRefererEcho()と同じパターンで実装X-Saasus-Trace-Idヘッダーが未指定の場合はスキップされ、既存動作に影響なしSDK バージョン: v1.10.19