backend-coding

SKILL.md

Build production-ready backend services with proper architecture, security, performance optimization, and testing.

Never trust user input - Validate everything Use parameterized queries - Prevent SQL injection Hash passwords - bcrypt with cost factor 12+, never store plain text Expire tokens quickly - 15min access tokens, 7day refresh tokens Use HTTPS only - TLS 1.3 minimum

Cache frequently accessed data - Redis with appropriate TTL (typically 1 hour) Use database indexes - On all query columns Paginate large result sets - Max 100 items per page Use connection pooling - 10-20 connections Async operations for I/O - Don't block the event loop

專家後端開髮指南，涵蓋 Node.js、Python、Java、Go、API 設計 (REST/GraphQL/gRPC)、數據庫模式、身份驗證、緩存、消息隊列、微服務和測試。使用行業最佳實踐生成生產就緒、可擴展且安全的後端代碼。在構建 API、實現業務邏輯、設計數據模型、集成服務或用戶提到後端開發、服務器端代碼、API、數據庫或微服務時使用。 來源：dauquangthanh/hanoi-rainbow。

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