Writing Reactive Application using Angular/RxJS, Spring WebFlux and Couchbase Naresh Chintalcheru Who is Naresh ● Technology professional for 18+ years ● Currently, Technical Architect at Cars.com ● Lecturer at Illinois State University Agenda ● Introduction ● Reactive Principles ● Why Reactive ● Design Patterns ● Reactive Application Architecture ○ Frontend ○ Backend APIs ○ Data Access ● Demo Code ● Q & A Programming puzzle Programming puzzle a = 1; b = a + 1; a = 2; print a; ---> 2 print b; ---> ? Programming puzzle a = 1; b = a + 1; a = 2; print a; ---> 2 print b; ---> ? 2 or 3 Programming puzzle a = 1; b = a + 1; a = 2; print a; ---> 2 print b; ---> ? 2 3 Programming puzzle a = 1; b = a + 1; a = 2; print a; ---> 2 print b; ---> ? 2 3 Imperative Reactive Reactive Programming Interface Reactive Programming *** Programming paradigm oriented around data flows and propagation of change -Wiki Functional programming with asynchronous data streams