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Lessons (7)

• REST vs GraphQL vs gRPC

  … You list exactly the ingredients you want, and get them in one bowl. - gRPC 📞 = the kitchen's internal …

• API Contracts, Gateways and Security

  … JSON is common; Protobuf is compact and typed for gRPC. Version deliberately and evolve fields additively where possible …

• Proxies, APIs and Real-Time Protocols

  … HTTPS Familiar and cache-friendly Internal typed call gRPC/RPC Tighter coupling Slow work Queue Eventual result and …

• Service Communication: Sync vs Async

  … request/response One service calls another (HTTP/REST or gRPC) and waits for the answer. mermaid sequenceDiagram participant …

• API Gateway, BFF & Service Discovery

  … combined response Protocol translation Public REST/JSON outside, gRPC inside Caching Cache public GET responses Observability Access logs …

• Microkernel (Plugin) Architecture

  … ins Plug-ins are services called over HTTP/gRPC Webhooks, Shopify apps Trade-offs ✅ Strengths ❌ Weaknesses --- --- Extensible without …

• Services & Ingress

  … features (header matching, traffic splitting for canaries, TCP/gRPC routes) in a standard way. yaml apiVersion: gateway.networking …