Helidon: Java Libraries for Writing Microservices
summary
Helidon presents two concrete Java models: Helidon MP (MicroProfile APIs, CDI, JAX‑RS) and Helidon SE (functional routing on top of Netty). Demo generates a Maven archetype that produces a small app jar plus a lib directory, Dockerfile and Kubernetes YAML, builds an image with cached runtime layers, and runs in Kubernetes. Features implemented: JSON‑P binding via CompletionStage, metrics, health, fault tolerance, JWT (not yet MicroProfile‑compliant), experimental GraalVM native work, and reactive request/response via the Flow API.
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chapters (9)
- 0:00Project overview
- 4:20MicroProfile standard
- 6:10Helidon SE architecture
- 9:19CDI extensions
- 12:06Roadmap and community
- 14:44Quickstart demo
- 23:26Routing and handlers
- 30:28JSON handling
- 33:46Reactive programming
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