
Microservices Communication Patterns: Synchronous vs Asynchronous
Microservices communicate through various patterns, each with trade-offs. Understanding when to use synchronous vs asynchronous communication is crucial for building scalable, resilient systems. Communication patterns overview Microservices can communicate through: Synchronous: Direct request-response (REST, gRPC) Asynchronous: Message-based (queues, events, pub/sub) Hybrid: Combination of both approaches Synchronous communication REST API Most common pattern for service-to-service communication. Advantages: Simple and familiar Language agnostic Easy to debug Good tooling support Disadvantages: Tight coupling Cascading failures Latency accumulation No guaranteed delivery Example: ...