What microservice patterns do you know?

Main patterns (patterns) of microservices:

• API Gateway — a single entry point for all clients, routing requests to the appropriate microservices, providing authentication, data aggregation.

• Service Discovery — a mechanism that allows microservices to find each other dynamically, without hardcoded addresses.

• Circuit Breaker — a pattern for handling failures in dependent services, preventing cascading failures.

• Saga — a pattern for managing distributed transactions through a sequence of local transactions with compensatory actions.

• CQRS (Command Query Responsibility Segregation) — separation of read and write operations for optimization and scaling.

• Event Sourcing — storing state as a sequence of events, which facilitates auditing and recovery.

• Sidecar — isolating auxiliary functions (logging, monitoring) into a separate process alongside the main service.

• Bulkhead — resource isolation to prevent failure propagation between services.

These patterns help build fault-tolerant, scalable, and easily maintainable microservice architectures.