Node.JS Micro services Arcitecture

Given at the You Gotta Love Front-end conference in Tel Aviv, 2016

Transcript

1. NODE.JS MICRO SERVICES
3. ADY LEVY Group Lead at Aol, A Verizon company. Working with client / server technologies for the past 10 years. Passionate about Javascript and frontend.
4. WHAT IS THIS LECTURE ALL ABOUT ? Node.js is scalable, extensible and should be a first choice for a JS developer. Node.js is not scary and can be used as a first citizen production service/app. Backend architecture like micro services can be easily applied to a node.js app
5. WHAT IS A MICRO SERVICE? • Single responsibility per service • Distributed • Split to small sevices • SOA reinvented...
6. MONOLITHIC APPLICATION - DISADVANTAGES ? • Needs very strong hardware to run • A bug in one of the components will take down the entire app • Very hard to scale • Code quality • Maintenance • Deployment cycle • Testability
7. ADVANTAGES OF MICRO SERVICES • Single, small codebase per service - Each microservice deals with one concern only • Easy to scale horizontally • Deployments contained and much easier (also for rollbacks) • Tests are easier to maintain and manage • Code changes becomes easy • Availability - A bug in one of the services will not take down the entire app • Enables right language / framework for each domain
8. CHALLENGES • Communication / Synchronization between services (1 call => many internal calls) • Operational overhead (instead of 1 server, maintainance of dozens) • Monitoring • Integration testing • Backward/forward compatibility
9. LETS SEE SOME CODE First Repo - bit.ly/todo-simple One APP -UI , API , Entity Access Second Repo - bit.ly/todo-micro Split to 3 applications.
10. INLINE PLAYER
11. AUTO PLAY VIDEOS INLINE ON MOBILE DEVICES MORE AD VIEWS MORE VIDEO VIEWS
12. OUR USE CASE Mobile device limitations Don’t break user experience Support autoplay Outside of native player
13. PRODUCT DEMO - IOS SIMULATOR Demo
14. INLINE PLAYER - STATS
15. INLINE PLAYER - ARCHITECTURE
16. INLINE PLAYER - ARCHITECTURE
17. INLINE PLAYER - ARCHITECTURE
18. INLINE PLAYER - ARCHITECTURE
19. WHAT DID WE LEARN ? • If you have not tried Node.js just yet - do it today! • Node.js is a legit solution for high load backend tasks • Micro services are cool and can easily be applied to a node application
20. WHAT ELSE?
21. SERVICE DISCOVERY
22. AUTO SCALE
23. FRONT END MICRO SERVICES
24. CONTINUOUS DEPLOYMENT