Comprehensive guide to designing distributed systems with service boundaries, communication patterns, and resilience strategies.

• Covers service decomposition by business capability and domain-driven design, with the Strangler Fig pattern for gradual monolith migration
• Includes synchronous (REST, gRPC) and asynchronous (Kafka, message queues) communication patterns with event-driven architecture examples
• Provides Saga pattern implementation for distributed transactions with compensating actions and eventual consistency
• Features resilience patterns including Circuit Breaker, retry with exponential backoff, and bulkhead isolation to prevent cascade failures
• Includes production-ready Python code examples for API gateways, event buses, saga orchestration, and circuit breaker implementations