Cloud Native Java
summary
Builds a cloud-native reactive Java service with Spring Boot 2.3 milestone, Reactor and Spring WebFlux, using Spring Data reactive MongoDB and R2DBC for Postgres. Demonstrates the concrete shapes Mono/Flux, use of flatMap vs flatMapSequential, scheduler isolation and a BlockHound‑style agent to detect blocking calls. Implements WebSocket and RSocket endpoints, a Kotlin RSocket client and an SSE HTTP endpoint; pipelines persist to databases, execute asynchronously (ordering is non‑deterministic) and the demos largely run end‑to‑end with one final client hiccup.
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chapters (9)
- 0:00Introduction and welcome
- 3:51Why reactive programming
- 10:49Building a reactive Spring Boot app
- 22:57Saving data to MongoDB
- 27:54Switching to PostgreSQL
- 32:12Why reactive matters
- 35:03Infinite streams with WebSockets
- 45:49Introducing RSocket
- 59:42Q&A
