Semih Yesilyurt 25ba37103d perf(pcat): rotating Floxy residential transport + resilience (decode latency)
Prod decode was dominated by the DataImpulse proxy: ~50% of ports dead at any
moment, 57% of captured tokens discarded by validation, the dead-port slot
never evicted (invalidateSession only fired on 401/403, never on transport
timeout), and a cold pool blocked the user inline on a multi-second capture.
pcat sub-timing was p50 8.3s / p90 56s, blowing the 25s decode budget.

Verified on prod: the TWS- token is NOT request-time IP-bound (0 auth 401/403
across thousands of calls; a token captured on one IP replays 200 through
arbitrary fresh residential IPs). So the proxy can rotate freely.

- Transport swap to Floxy residential (PCAT_PROXY_PROVIDER=floxy|dataimpulse|none).
  Call/validate leg = a fresh exit IP per request (max IP diversity → min per-IP
  ban); capture leg = a sticky session per Playwright attempt. DataImpulse +
  direct kept as env fallbacks. Token decoupled from the slot (proxyPort removed).
- Prune 3 zero-yield JWT sites (knkauto/autodo.kz/flynestauto — 0 captures, ~80%
  of attempts); add PCAT_JWT_SITES env override.
- Lower catalog-scrape timeout 30s→10s (env-tunable) so a slow IP aborts within
  budget and the retry rotates to a fresh IP.
- Cold-pool fast-fail on the decode race: warm in background, let EMEX/PL24
  answer instead of blocking inline; treated as a transient miss (no neg-cache).
- Evict a token after N consecutive transport failures on rotating IPs (the
  dead-slot bug); reset on any 2xx.
- PCAT circuit breaker mirroring PL24 (transient-only; cold-skip neutral; skip
  marks outcome.transient so a pcat-only VIN isn't negative-cached 30m).

Typecheck + Biome + unit tests (categories/vehicles) green. Default flips pcat
to Floxy on next deploy; instant rollback via PCAT_PROXY_PROVIDER.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-10 21:19:14 +03:00
2026-02-12 00:26:34 +00:00

Sase

VIN/şase numarası sorgulama ve otomotiv yedek parça katalog platformu (Türkiye). Site: https://sase.tr · Staging: https://dev.sase.tr


Stack

Katman Teknoloji
Monorepo pnpm 10 + Turborepo
Backend NestJS 10, TypeScript 5.7, Node 22
DB PostgreSQL 17 + Drizzle ORM
Cache / Queue Redis 7 + BullMQ
Auth Better Auth (cookie session)
Frontend Vite 6, React 19, TanStack Router + Query
UI Tailwind v4, shadcn/ui (Radix)
Ödeme Stripe (kart)
Email Postal
Storage MinIO (S3)
Analitik PostHog
Test Vitest, Playwright
Deploy GitHub Actions → SSH → PM2

Yapı

ss/
├── apps/
│   ├── api/                NestJS (port 4000, /api)
│   └── web/                Vite + React (port 3000)
├── packages/
│   ├── shared/             Tipler, Zod şemaları
│   ├── config/             Env şeması (Zod)
│   └── ui/                 Paylaşılan shadcn bileşenleri
├── docker/                 docker-compose + nginx
├── scripts/                Deploy + bakım scriptleri
└── docs/                   Detay dökümantasyon (INDEX.md)

Komutlar

pnpm dev                    # tüm app'ler (Turbo)
pnpm build
pnpm test                   # Vitest
pnpm lint                   # Biome
pnpm typecheck

# DB (apps/api/)
pnpm db:push                # şemayı push
pnpm db:studio              # Drizzle Studio
pnpm db:generate            # migration üret

# Tek app
pnpm dev --filter=api
pnpm dev --filter=web

VIN Decode Akışı

Corgi (offline WMI) → PartsCatalogs API → PL24 API → EMEX scraper → NHTSA

Birden fazla araç eşleşmesi gelirse frontend seçim modalı gösterir.


Katalog Mimarisi

  • PL24 P5 Modern (REST/JSON) — VW Group, BMW, Mercedes, Renault, Toyota...
  • PL24 P4 Legacy (HTML scrape) — Ford, PSA, Hyundai/Kia, Nissan, Opel, Volvo
  • PartsCatalogs (REST + Playwright JWT) — geniş VIN kapsamı
  • EMEX (Playwright scrape, emexdwc.ae) — async BullMQ worker

EMEX & PartsCatalogs Türkçeleştirme

EMEX ve PartsCatalogs kaynakları kategori/parça isimlerini İngilizce (zaman zaman Rusça) döner. Çeviri akışı:

  1. TranslationsService (apps/api/src/translations/) — Redis cache → DB lookup (emex_category_translations) → orijinal döndür. Dictionary tabanlı word-by-word replace devre dışı (yarı-İngilizce çıktı yaratıyordu).
  2. Hot path (categories.service.ts) — EMEX/PCAT insert noktalarında translateMany() ile bulk lookup yapılır; cache miss varsa orijinal yazılır, sonraki bootstrap pass'inde LLM ile çevrilir.
  3. Bootstrap script (scripts/emex-translate-bootstrap.ts) — DB'deki tüm unique name_original değerlerini OpenRouter üzerinden DeepSeek V3 ile çevirir, emex_category_translations tablosuna yazar.
  4. Backfill script (scripts/emex-backfill-tr-names.ts) — translation tablosuna göre mevcut categories.name ve parts.name değerlerini günceller, Redis cache flush eder.
# 1) Tüm yeni terimleri çevir (~$0.50, ~30 dk)
pnpm exec tsx scripts/emex-translate-bootstrap.ts --dry-run
pnpm exec tsx scripts/emex-translate-bootstrap.ts

# 2) DB kayıtlarını güncelle
pnpm exec tsx scripts/emex-backfill-tr-names.ts --dry-run
pnpm exec tsx scripts/emex-backfill-tr-names.ts

# 3) API restart (yeni hot-path translateMany için)
pm2 restart sase-api

Env: OPENROUTER_API_KEY (apps/api/.env).


Test Bilgileri

  • Admin: admin@sase.tr / Sase2026
  • Test VIN (VW): WVWZZZ1JZ3W597935
  • Login: POST /api/auth/sign-in/email → cookie better-auth.session_token

Daha Fazla

  • docs/INDEX.md — kapsamlı proje rehberi (rotalar, API, DB şeması, bileşenler)
  • CLAUDE.md — Claude Code için proje rehberi
Description
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