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⚡ Bolt: Replace multiple array reduce calls with a single loop in session APIs#36

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bolt-single-loop-optimization-10690895067811174959
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⚡ Bolt: Replace multiple array reduce calls with a single loop in session APIs#36
seonghobae wants to merge 1 commit into
mainfrom
bolt-single-loop-optimization-10690895067811174959

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@seonghobae

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💡 What:
Replaced three separate .reduce() calls on session.usageRecords with a single for...of loop in two dashboard session API routes (sessions/route.ts and sessions/[sessionId]/route.ts).

🎯 Why:
When processing relationships fetched via Prisma include, doing multiple iterations over the array (e.g. to calculate inputTokens, outputTokens, and estimatedCostUsd separately) wastes CPU cycles. A single loop computing all three derived values at once is significantly more efficient and avoids O(3n) complexity for array iteration.

📊 Impact:

  • Reduces iteration overhead by ~66% when mapping/summing session usage records.
  • Lowers main thread blocking time during data aggregation in the session APIs.
  • Improves memory efficiency marginally by avoiding additional array pass overhead.

🔬 Measurement:

  1. Check the response times for the /api/orgs/:orgSlug/dashboard/sessions and /api/orgs/:orgSlug/dashboard/sessions/:sessionId routes, especially for sessions with a very high eventCount (many usageRecords).
  2. Run standard Next.js local development benchmarking to ensure no latency regressions.

PR created automatically by Jules for task 10690895067811174959 started by @seonghobae

Replaced chained `.reduce()` passes over Prisma relationship arrays (`session.usageRecords`) with single `for...of` loops in session-related API routes to improve iteration performance and reduce CPU cycles.
@google-labs-jules

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ℹ️ Review info
⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 0a6122a7-7529-4cf1-8ade-4d1cbe85c1e8

📥 Commits

Reviewing files that changed from the base of the PR and between cdf4ce8 and ba64ea9.

📒 Files selected for processing (3)
  • .jules/bolt.md
  • packages/web/src/app/api/orgs/[orgSlug]/dashboard/sessions/[sessionId]/route.ts
  • packages/web/src/app/api/orgs/[orgSlug]/dashboard/sessions/route.ts
✨ Finishing Touches
🧪 Generate unit tests (beta)
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  • Commit unit tests in branch bolt-single-loop-optimization-10690895067811174959
✨ Simplify code
  • Create PR with simplified code
  • Commit simplified code in branch bolt-single-loop-optimization-10690895067811174959

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@seonghobae

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최신 upstream/main 기준으로 이 PR은 81개 파일의 stale diff를 포함합니다. 특히 .claude agent/skill 파일 삭제와 오래된 워크플로우/lockfile/env 변경이 섞여 있어 그대로 유지하거나 upstream에 올리면 이미 반영된 변경을 되돌릴 위험이 큽니다.

현재 큐는 upstream #30 → upstream #21 순서로 정리 중입니다. 이 PR의 아이디어가 여전히 필요하면 최신 upstream/main에서 단일 목적 브랜치로 깨끗하게 다시 추출하겠습니다. stale PR로 닫습니다.

@seonghobae seonghobae closed this Jun 10, 2026
@google-labs-jules

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최신 upstream/main 기준으로 이 PR은 81개 파일의 stale diff를 포함합니다. 특히 .claude agent/skill 파일 삭제와 오래된 워크플로우/lockfile/env 변경이 섞여 있어 그대로 유지하거나 upstream에 올리면 이미 반영된 변경을 되돌릴 위험이 큽니다.

현재 큐는 upstream #30 → upstream #21 순서로 정리 중입니다. 이 PR의 아이디어가 여전히 필요하면 최신 upstream/main에서 단일 목적 브랜치로 깨끗하게 다시 추출하겠습니다. stale PR로 닫습니다.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.

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