Reactive Web 101: WebFlux, WebClient, and Reactor Netty
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Presented by Violeta Georgieva at Reactive Enterprise with Reactor and Spring in Toronto on June 13th, 2019.
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Reactive Web 101: WebFlux, WebClient, and Reactor Netty
- 1. Reactive Web 101: WebFlux, WebClient, and Reactor Netty Violeta Georgieva @violeta_g_g
- 2. Violeta Georgieva • Pivotal • Spring Framework contributor • Reactor Netty committer • Tomcat committer 2
- 3. Agenda • Blocking, Non-blocking and Reactive IO • Spring Framework 5 Reactive Web • WebFlux • WebClient • Reactor Netty • Demo 3
- 5. Synchronous Blocking IO 5 Waiting for response Remote Http Call Another Remote Http Call Remote Http Call Execution Network Latency Processing Latency
- 6. Synchronous Blocking IO 6 Waiting for response Waiting for response Waiting for response … Cannot Process Anymore
- 7. Asynchronous Blocking IO 7 Remote Http Call Another Remote Http Call Remote Http Call Execution Network Latency Processing Latency Waiting for response
- 8. Asynchronous Blocking IO 8 Waiting for response Waiting for response … Waiting for response … Cannot Process Anymore
- 9. Non-blocking IO 9 Remote Http Call Another Remote Http Call Remote Http Call Execution Network Latency Processing Latency
- 10. Non-blocking IO 10 Network Latency Processing Latency … …
- 11. Non-blocking IO Event Loop Requests, etc. Intensive Operations Remote CallsRegister callback File System Database Remote CallOperation Complete Trigger Callback Computation
- 12. Reactive IO 12
- 13. Reactive IO 13
- 14. Spring Framework 5 Reactive Web
- 16. 16 Functional Endpoints Spring Framework 5.2 Spring WebFlux
- 17. Reactor Netty
- 18. Reactor Netty • Reactive Streams API for Netty • Hides the complexity of Netty • Build-in Backpressure support 18
- 19. Reactor Netty 19 Prepares the response Sends “Hello World” Configures the port Prepares the pipeline Configures the server
- 20. Reactor Netty 20 Configures the port Sends “Hello World” Creates the server
- 21. Reactor Netty • Supports UDP, TCP and HTTP • Spring Boot 2 reactive web starter - default server runtime • WebClient by default it is based on Reactor Netty 21
- 22. DEMO