How do Microservices Communicate With Each Other? - GeeksforGeeks (2024)

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Microservices communicate with each other through network protocols and messaging mechanisms. Some of the common methods of their communication are:

  • HTTP/HTTPS:
    • Microservices often communicate over the HTTP or HTTPS protocols using RESTful APIs. Each microservice exposes endpoints that other services can call to request or manipulate data. This approach is straightforward and widely used, making it suitable for many scenarios.
  • Messaging Queues:
    • Microservices can communicate asynchronously through messaging queues like RabbitMQ, Apache Kafka, or Amazon SQS. With messaging queues, services can publish messages to a queue, and other services can consume these messages. This decouples communication between services and supports event-driven architectures.
  • RPC (Remote Procedure Calls):
    • Microservices can use RPC mechanisms such as gRPC or Thrift to communicate with each other. RPC allows services to call methods or procedures on remote services as if they were local, abstracting away the network communication complexity. gRPC, for example, offers high-performance communication using protocol buffers and HTTP/2.
  • Event Streaming:
    • Some microservices architectures rely on event streaming platforms like Apache Kafka or Amazon Kinesis. In this approach, services produce and consume events, enabling real-time communication and data processing. Event streaming is particularly useful for scenarios where events need to be processed asynchronously and distributed across multiple services.
  • Service Mesh:
    • Service meshes provide features like service discovery, load balancing, encryption, and observability, enhancing the reliability and security of microservices communication.

These communication mechanisms enable microservices to interact effectively in distributed systems, facilitating scalability, resilience, and maintainability.



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How do Microservices Communicate With Each Other? - GeeksforGeeks (2024)
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