Intro to Functional Reactive Programming

Transcript

1. Intro to Functional Reactive Programming Mexan Juadha
2. WTF is that ? • Reactive Programming (aka Asynchronous Dataflow Programming). Programming oriented by dataflow and change propagation. • Functional Programming: use FP building blocks, e.g. map, reduce, filter et.al. to transform, combine, and compose stream of values.
3. Imperative Programming int a = 2; int b = a * 10; // b ? P Input Output State int a = 10; // b ?
4. A "real-world" example of Reactive Programming
5. A "real-world" example of Reactive Programming
6. A "real-world" example of Reactive Programming
7. Reactive + Functional
8. What are Reactive Extensions ? • It’s a library that allows you to use FRP in many Programming Language • Allows you to represent asynchronous data streams with “Observables”
9. Rx Family • C#: rx.NET • JavaScript: RxJS • RxJava (Java, Scala, Groovy, Clojure, Kotlin) Ruby: Rx.rb • Python: RxPY • More at: http://reactivex.io/
10. Why RxJava ?
13. Push vs Pull
14. Observables vs Iterator
15. OnNext, OnError, OnCompleted
16. Operator RxMarbles.com
19. Demo “Enough with the talk, let’s do the demo”
28. Watch This : Adopting RxJava on Airbnb Android - Felipe Lima
29. Watch This : Reactive.community: Ben Christensen, Reactive Extensions (Rx) at Netflix
30. Must Read Books :