Decoupling Vert.x Microservices with the Event Bus
Learn how to use the Vert.x Event Bus to decouple microservices. Explore point-to-point and pub/sub patterns with a practical order-processing example and payload optimization tips.
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vertxUsing Vault AppRole for Secure Microservice Communication
Vault’s AppRole auth method gives microservices short‑lived tokens without storing long‑term credentials. This guide walks through creating a role, generating and rotating Secret IDs, verifying token policies, and lists key trade‑offs and a production checklist.
vaultExpose Moleculer Service Metrics to Prometheus – A Practical Guide
Discover how to expose Moleculer service metrics to Prometheus with built‑in middleware, extend them with custom gauges, and balance security and performance. A step‑by‑step guide with code snippets and best‑practice trade‑offs.
prometheusSolving the 'Invisible Dependency' Problem with Dynatrace Smartscape
Stop manually mapping microservices. Learn how Dynatrace OneAgent and Smartscape automate dependency discovery to eliminate visibility gaps and accelerate root-cause analysis.
dynatraceUsing gRPC Deadlines to Stop Zombie Requests in Microservices
Learn how gRPC deadlines propagate a time budget across service calls, stop zombie requests, and prevent resource exhaustion in distributed systems.
grpcDistributed Semaphore for Microservice Rate‑Limiting: Architecture, Design, and Operational Guidance
Design a distributed semaphore using Redis and Lua scripts to enforce a global concurrency limit across microservices. The article covers requirements, minimal design, trust boundaries, operational checks, failure modes, and when to adjust the architecture.
redisMapping Microservices Choreography with UML Sequence Diagrams
Learn how to use UML Sequence Diagrams to map microservices choreography, distinguishing between synchronous and asynchronous calls to prevent distributed system bottlenecks.
Choosing a Service Versioning Strategy in Moleculer: Version Property vs. Naming vs. Middleware
When building microservices with Moleculer, deciding how to handle API evolution matters. This guide compares the built‑in version property, name‑based versioning, and custom middleware approaches, then walks through a concrete example and how to verify it works.
nodejs
moleculer