What problems can we face when designing a microservices architecture?

When designing a microservices architecture, the following problems often arise:

• Complexity of managing a distributed system: many services require orchestration, monitoring, and logging.

• Data consistency issues: microservices have their own databases, which complicates maintaining integrity and consistency.

• Network delays and fault tolerance: interactions over the network are slower than in-process calls, requiring consideration of timeouts and retries.

• Transaction management: traditional transactions do not work across service boundaries, so patterns like sagas are used.

• API versioning: when updating services, compatibility with other services must be maintained.

• Security: authentication and authorization between services must be ensured.

• Testing and debugging: more complex due to distribution and asynchrony.

• Configuration and deployment management: automation of CI/CD is necessary for quick and safe service updates.

Successful design requires a well-thought-out architecture, monitoring and automation tools, and a DevOps culture.