serpapi-reference-architecture

# SerpApi Reference Architecture ## Overview Production architecture for search-powered applications using SerpApi. Core components: cached search service, multi-engine abstraction, SERP monitoring pipeline, and credit budget management. ## Architecture Diagram ``` ┌──────────────────────────────────┐ │ API Layer │ │ /search /track /health │ ├──────────────────────────────────┤ │ Search Service │ │ Multi-engine Caching Parsing │ ├──────────────────────────────────┤ │ SerpApi Client │ │ Rate Limiting Retry Archive │ ├──────────────────────────────────┤ │ Infrastructure │ │ Redis Cache PostgreSQL Cron │ └──────────────────────────────────┘ │ ▼ ┌──────────────────────────────────┐ │ SerpApi REST API │ │ google youtube bing news │ │ 1 credit/search, 100-50K/mo │ └──────────────────────────────────┘ ``` ## Project Structure ``` search-service/ ├── src/ │ ├── serpapi/ │ │ ├── client.ts # Cached search with rate limiting │ │ ├── engines.ts # Engine-specific param mapping │ │ └── types.ts # Typed result interfaces │ ├── services/ │ │ ├── search.ts # Multi-engine search facade │ │ ├── tracking.ts # Keyword rank tracking │ │ └── credits.ts # Usage monitoring │ ├── api/ │ │ ├── search.ts # /search proxy endpoint │ │ └── health.ts ...