Sustainable Client Architectures with Angular and Micro Apps @JAX 2019

Transcript

1. @ManfredSteyer Sustainable Client Architectures with Angular and Micro Apps Manfred Steyer SOFTWAREarchitekt.at ManfredSteyer
2. @ManfredSteyer ✓ Commodore 64 ✓ 1982 ✓ ~ 1 MHz ✓ 64 KB RAM ✓ Disks with 170 KB
3. @ManfredSteyer Version with two cores ;-) Challenge: Resources!
4. @ManfredSteyer Challenges today: Complexity
5. @ManfredSteyer Coordination b/w teams
6. @ManfredSteyer Long Time Maintain- ability Maintain + Extend for 10 - 20 yrs
7. @ManfredSteyer There are milk products lasting longer than some JavaScript frameworks
8. @ManfredSteyer Idea System
9. @ManfredSteyer Idea µService µService µService
10. @ManfredSteyer Idea µService µService µService Single Page Application ??
11. @ManfredSteyer Contents 1) Deployment Monolith 2) Hyperlinks 3) Shell 4) How to choose?
12. @ManfredSteyer About me… • Manfred Steyer • SOFTWAREarchitekt.at • Angular Trainings and Consultancy • Google Developer Expert (GDE) • Collaborator in the Angular Team Page ▪ 12 Manfred Steyer Public: Frankfurt, Vienna, München, Stuttgart In-House: everywhere http://softwarearchitekt.at/workshops
13. @ManfredSteyer Deployment Monolith
14. @ManfredSteyer Idea µService µService µService Client Fragment Client Fragment Client Fragment ✓ Easy (Tooling) ✓ One optimized Bundle ✓ Consistent  No separate deployment  Mixing Technologies: Difficult npm Packages ?
15. @ManfredSteyer Advantages • Distribution • Versioning
16. @ManfredSteyer Disadvantages • Distribution • Versioning ;-)
17. @ManfredSteyer Disadvantages Distribution • Annoying within project Versioning • Old versions • Conflicts • How to force devs to use latest version?
18. @ManfredSteyer Monorepo
19. @ManfredSteyer Workspace
20. @ManfredSteyer More about Monorepos Today, 15:30 Wartbare Architekturen mit Angular, Monorepos und Strategic Domain-driven Design
21. @ManfredSteyer Advantages Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project
22. @ManfredSteyer Disadvantages Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project
23. @ManfredSteyer Disadvantages Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project Sub Project Team A Team B Contract
24. @ManfredSteyer Disadvantages One Architecture One Technology Stack Hard to change No self- contained teams One size fits all?
25. @ManfredSteyer 2) Hyperlinks
26. @ManfredSteyer UI Composition w/ Hyperlinks µApp SPA µApp SPA µApp SPA
27. @ManfredSteyer
28. @ManfredSteyer
29. @ManfredSteyer ✓ Simple  Loosing State  Load a new Application
30. @ManfredSteyer
31. @ManfredSteyer Web Components for Shared Widgets?
32. @ManfredSteyer Framework independent Components
33. @ManfredSteyer
34. @ManfredSteyer Can be polyfilled down to IE11
35. @ManfredSteyer 3) Shell
36. @ManfredSteyer µService Providing a (SPA based) Shell µApp µApp µApp Shell ▪ iframes ▪ Bootstrapping several SPAs ▪ + Lazy Loading
37. @ManfredSteyer Case Study for Shell approach Today, 17:00 Praktische Umsetzung der Microfrontend-Architektur in Enterprise- Anwendungen, Taras Demyanets
38. @ManfredSteyer Wrap µApps into Web Components • Not a typical web component! • But: Unified API for Shell • Lazy Loading • Nesting
39. @ManfredSteyer Loading MicroApps <script src="micro-app.bundle.js"></script> <micro-app></micro-app>
40. @ManfredSteyer Communication between Micro Apps <client-a [state]="appState" (message)="handle($event)"></client-a> <client-b [state]="appState" (message)="handle($event)"></client-b> JavaScript in Shell
41. @ManfredSteyer DEMO
42. @ManfredSteyer Advantage • Several small and decoupled Projects
43. @ManfredSteyer Disadvantages • Several small and decoupled Projects ;-) • More Bundles • Less optimized Bundles/ duplicate Code? • UI Consistency?
44. @ManfredSteyer 4) Choosing a Solution
45. @ManfredSteyer Some General Advice Shared state, navigation b/w apps Hyperlinks Legacy Apps or *very very* strong isolation? iframes Separate Deployment/ mix Technologies? Bootstrap several SPAs Monolith w/ Libs and Monorepo little much yes no yes no Not a good fit for public web sites
46. @ManfredSteyer Architecture within Micro-Apps Packages Web Components Monorepo Inner Sourcing Separate Wey …
47. @ManfredSteyer Blog > SOFTWAREarchitekt.at • A Software Architect's Approach Towards Using Angular (And SPAs In General) For Microservices Aka Microfrontends • A Lightweight And Solid Approach Towards Micro Frontends (Micro Service Clients) With Angular And/Or Other Frameworks • Micro Apps With Web Components Using Angular Elements
48. @ManfredSteyer Conclusion Monorepo Hyper Links Shell You need to evaluate!
49. @ManfredSteyer Contact and Downloads [mail] manfred.steyer@SOFTWAREarchitekt.at [web] SOFTWAREarchitekt.at [twitter] ManfredSteyer d Slides & Examples http://softwarearchitekt.at/workshops