Architecting Resilient JSON REST Endpoints with Ballerina
Learn how to build resilient JSON REST endpoints in Ballerina using the built-in HTTP service model and @retry annotations to handle transient failures.
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jsonMongoDB Change Streams: Architecture Note for Low‑Latency, Exactly‑Once Event Capture
Guidance on requirements, minimal design, trust boundaries, operational checks, failure modes, and design‑change triggers for MongoDB change streams.
mongodbMastering .NET Core’s HttpClientFactory: Lifetime, DNS, and Resilience
Avoid socket exhaustion and DNS churn in .NET Core by using HttpClientFactory. Learn how named and typed clients share handlers, integrate Polly policies, and keep your services robust. Includes code, limits, and common pitfalls.
Using Envoy Outlier Detection to Automatically Eject Unhealthy Upstreams
Learn how Envoy’s outlier detection automatically ejects unhealthy upstream hosts, how to configure it, what trade‑offs to watch, and how to verify the behavior in practice.
Envoy Global Rate Limiting: Stopping Cascading Failures at the Edge
Local rate limits silently scale with your replica count. Envoy's global rate limiting centralizes quota decisions in an external gRPC service — here's how the pieces fit, a working per-IP example, and the fail-open vs. fail-closed decision you can't skip.
grpcUsing Moleculer’s Circuit Breaker for Resilient Microservice Calls
Learn how to configure and monitor Moleculer’s built‑in Circuit Breaker, the minimal architecture that protects your services from cascading failures, and when to rethink the design.
moleculerChoosing the Right HttpClient Lifetime in .NET Core: Factory vs. Singleton vs. Per‑Call
Decide how long an HttpClient should live in .NET Core. Compare typed clients via IHttpClientFactory, singleton HttpClient with handler rotation, and per‑call creation. See a concise table, trade‑offs, and concrete code examples with validation steps.
Using Moleculer’s Built‑In Circuit Breaker to Guard Service‑to‑Service Calls
Learn how to enable Moleculer’s built‑in circuit breaker middleware, configure thresholds, observe state changes, and use a fallback response to prevent cascading failures in your micro‑service mesh.
Combining Envoy Outlier Detection and Connection‑Pool Circuit Breakers for Resilient Service Calls
Learn how Envoy’s passive outlier detection and connection‑pool circuit breakers work together to isolate failing upstream hosts and prevent overload, with a concrete configuration example and verification steps.