advanced~2h
API Gateway & Service Communication
Module 19 handled the fire-and-forget case. This module is for when a client genuinely needs a synchronous answer, and you have several services instead of one.
Learning objectives
- Beginner: Explain what problem an API Gateway solves that calling each microservice directly from the client doesn't.
- Intermediate: Implement a synchronous service-to-service REST call and handle a timeout from the downstream service.
- Advanced: Design a gateway routing/resilience strategy (rate limiting, circuit breaking) so one failing downstream service doesn't cascade into a total outage.
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API Gateway & Service Communication