How do services interact with each other in a microarchitecture?

In microarchitecture, services interact with each other using the following main methods:

• HTTP/REST API — the most common way, where services exchange data via HTTP requests using REST.
• gRPC — a high-performance remote procedure call protocol that uses Protocol Buffers.
• Messages through brokers (Message Brokers) — asynchronous interaction via message queues (e.g., RabbitMQ, Kafka).
• Event-driven architecture — services respond to events published by other services.

The choice of method depends on requirements for performance, reliability, and interaction complexity.