100% JavaEE Microservices
summary
Snoop is a Java EE service-discovery system that registers services over a WebSocket heartbeat every 10 seconds and exposes lookups via an annotation; enable registration with EnableSnoopClient and inject targets with @Snoop. It ships as a tiny 10k jar (compared to a 223MB Spring demo), provides a ServiceClient with simpleGet returning Optional, runs in Docker/GlassFish/Payara/WildFly Swarm, requires config via system props/env/files, and currently lacks multi-node replication (single point of failure).
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chapters (20)
- 0:00Introduction to Snoop
- 1:28What is service discovery
- 5:49Snoop basics and inspiration
- 9:07Snoop philosophy and features
- 10:30Service registration in Snoop
- 11:24Service lookup with Snoop
- 12:09Consuming services in Snoop
- 14:18Snoop configuration
- 15:42Snoop communication model
- 18:28Demo: Eureka comparison
- 21:41Demo: Simple Hello service
- 26:02Demo: Consuming Hello service
- 30:22Demo: Cross-environment lookup
- 33:01Demo: Snoop with WildFly Swarm
- 34:27Demo recap and flexibility
- 35:30How to get started with Snoop
- 37:35Q&A: Load balancing
- 38:45Q&A: Service replication
- 40:14Q&A: Single point of failure
- 41:05Q&A: Snoop vs Eureka
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