Quiz: In the Saga Pattern, what is the key difference between Choreography and Orchestration?
In Choreography , microservices react to events autonomously. In Orchestration , an orchestrator orchestrates the sequence of commands and compensations.
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In Choreography , microservices react to events autonomously. In Orchestration , an orchestrator orchestrates the sequence of commands and compensations.
response_model filters outbound data, ensuring private fields (e.g., hashed passwords) are stripped before returning payloads.
gRPC leverages HTTP/2 streaming and compact binary Protocol Buffers , eliminating JSON parsing overhead and connection head-of-line blocking.
.proto files act as the single source of truth IDL, compiling via protoc into type-safe client stubs and server interfaces across languages.
RabbitMQ is a traditional smart broker that routes and removes acknowledged messages. Kafka retains immutable event streams where multiple consumer groups replay from offsets.
A Circuit Breaker monitors failure rates. When failures exceed a threshold, it trips to OPEN state, failing immediately without exhausting server connection pools.
A Circuit Breaker operates in Closed (healthy), Open (tripped/failing fast), and Half-Open (probing for upstream recovery).
Database-per-Service guarantees domain boundaries and prevents tightly-coupled shared database schema locks or cascading schema migrations.