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في هذا الدرس

compare the two styles by coupling, latency, and failure.

الموضوعات المخطط لها

• Synchronous: the caller waits for the answer (HTTP, gRPC). Simple, immediate result.
• Asynchronous: the caller sends a message and continues (broker). Decoupled in time, harder to reason about.
• Sync couples availability: if inventory is down, orders fails too.
• Async absorbs spikes and outages, but the result arrives later and must be tracked.
• Use sync for queries needing an answer now; async for work that can finish later.