Inter-Service Communication

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Sync (HTTP/gRPC) vs Async (message queues, events). Synchronous communication is simpler but creates temporal coupling. Asynchronous communication decouples services in time but adds complexity with eventual consistency and message ordering.

Key Properties

• Synchronous Communication
• Asynchronous Messaging
• Protocol Selection

Related

• Event Bus and Broker (async infrastructure)
• gRPC (high-performance sync option)

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architecture microservices communication