التصميم للاتساق النهائي

في هذا الدرس

make lag a designed behavior, not a surprise.

الموضوعات المخطط لها

• Show honest intermediate states: "order pending", "payment processing".
• Return 202 Accepted with a status URL for work that finishes later.
• Read-your-writes tricks: read from the primary after a write, return the created resource in the response, or pass a version the reader waits for.
• Make updates idempotent and commutative where possible so order does not matter.
• Expect conflicts to be rare but define a rule (last write wins, merge, or ask the user).