How do services communicate with each other in your company?

In our company, services typically communicate with each other via REST API or gRPC, depending on performance requirements and data types. For synchronous interactions, REST with JSON is more commonly used, which is convenient and transparent for debugging. For high-performance and internal services, we prefer gRPC with Protocol Buffers, which reduces network load and speeds up data exchange.

We also use asynchronous communication through message brokers, such as RabbitMQ or Kafka, for event-driven architecture and background task processing. This helps to unload services and increase fault tolerance.

An example of a simple REST call in Python using requests:

import requests

response = requests.get('http://service-url/api/resource')
if response.status_code == 200:
    data = response.json()
    print(data)