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Reactive Web 101: WebFlux, WebClient, and Reactor Netty
The document provides an overview of reactive web development using Spring Framework 5, highlighting components such as WebFlux, WebClient, and Reactor Netty. It contrasts synchronous and asynchronous non-blocking I/O with reactive I/O, explaining their implications on application performance. Additionally, it includes references to demos and configurations for using Reactor Netty in building reactive applications.
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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-blockingand Reactive IO • Spring Framework 5 Reactive Web • WebFlux • WebClient • Reactor Netty • Demo 3
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- 5. Synchronous Blocking IO 5 Waitingfor response Remote Http Call Another Remote Http Call Remote Http Call Execution Network Latency Processing Latency
- 6. Synchronous Blocking IO 6 Waitingfor response Waiting for response Waiting for response … Cannot Process Anymore
- 7. Asynchronous Blocking IO 7 Remote HttpCall Another Remote Http Call Remote Http Call Execution Network Latency Processing Latency Waiting for response
- 8. Asynchronous Blocking IO 8 Waitingfor response Waiting for response … Waiting for response … Cannot Process Anymore
- 9. Non-blocking IO 9 Remote Http Call AnotherRemote Http Call Remote Http Call Execution Network Latency Processing Latency
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- 11. Non-blocking IO Event Loop Requests, etc. IntensiveOperations Remote CallsRegister callback File System Database Remote CallOperation Complete Trigger Callback Computation
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- 14. Spring Framework 5Reactive Web
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- 16. 16 Functional Endpoints Spring Framework5.2 Spring WebFlux
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- 18. Reactor Netty • ReactiveStreams API for Netty • Hides the complexity of Netty • Build-in Backpressure support 18
- 19. Reactor Netty 19 Prepares theresponse Sends “Hello World” Configures the port Prepares the pipeline Configures the server
- 20. Reactor Netty 20 Configures theport Sends “Hello World” Creates the server
- 21. Reactor Netty • SupportsUDP, TCP and HTTP • Spring Boot 2 reactive web starter - default server runtime • WebClient by default it is based on Reactor Netty 21
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