Imagine you're building a microservices architecture where multiple services need to communicate via RESTful APIs. How would you ensure consistency and reliability in this distributed system?

  • Implement idempotency in API operations to ensure that requests can be safely retried without unintended side effects.
  • Implement synchronous communication between services for real-time consistency.
  • Use distributed transactions across services to maintain consistency in data changes.
  • Utilize a message broker such as Kafka or RabbitMQ for asynchronous communication and eventual consistency across services.
Using a message broker for asynchronous communication ensures reliability by decoupling services and enabling eventual consistency. It also helps in handling peaks in traffic and reducing dependencies, enhancing the overall reliability of the microservices architecture.
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