Get Hip with JHipster - GIDS 2019

JHipster is one of those open-source projects you stumble upon and immediately think, "Of course!" It combines three very successful frameworks in web development: Bootstrap, Angular, and Spring Boot. Bootstrap was one of the first dominant web-component frameworks. Its largest appeal was that it only required a bit of HTML and it worked! All the efforts we made in the Java community to develop web components were shown a better path by Bootstrap. It leveled the playing field in HTML/CSS development, much like Apple's Human Interface Guidelines did for iOS apps.

This talk shows you how to use JHipster to build a Spring Boot API, an Angular UI, and make it all look good with Bootstrap. You'll learn how to deploy the generated project to Heroku too!

Transcript

1. Matt Raible | @mraible Get Hip with JHipster April 22, 2019 Photo by Alyssa Black https://www.flickr.com/photos/alyssablack/12185839253
2. Blogger on raibledesigns.com and developer.okta.com/blog Web Developer and Java Champion Father, Skier, Mountain Biker, Whitewater Rafter Open Source Developer + User Who is Matt Raible? Bus Lover Okta Developer Advocate
6. public class Okta { public Okta(DeveloperDNA developerDna) { DeveloperRelations devRel = developerDna.getDeveloperRelations(); Assert.notNull(devRel,"Developer Relations is required to operate effectively."); Set<Developer> team = devRel.getTeam(); Assert.isTrue(!team.isEmpty(),"Team cannot be empty."); Assert.isTrue(!devRel.getSdks().isEmpty(), "SDKs required for developers."); } }
7. Authentication Standards
8. What about YOU? Are you a Java Developer? Web Developer? How long have you been doing web development? Do you like JSF? Do you like GWT? Do you like JavaScript? TypeScript?
9. Do you want to be a hip Java Developer?
10. Java 8 Parallel Collections JSR 310 Date and Time API Functional Interfaces with default method Lambda Expressions (a.k.a. Closures) Nashorn JavaScript Engine
11. Java 11 New String Methods File Utility Methods Local Variable Syntax: var Java EE and CORBA modules removed What about Java 12?
12. Hipster n. noun 1. One who is exceptionally aware of or interested in the latest trends and tastes.
13. Latest trends in JavaLand? Microservices Embedded App Servers Deployment with Containers Environments: dev, test, production Auto-Configuration Monitoring
14. Spring Boot Automatically configures Spring whenever possible Provides production-ready features such as metrics, health checks and externalized configuration Absolutely no code generation and no requirement for XML configuration Embeds Tomcat, Jetty or Undertow directly
15. SPRING INITIALIZR @ start.spring.io
16. @SpringBootApplication public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } } @Entity class Blog { @Id @GeneratedValue private Long id; private String name; // getters, setters, toString(), etc } @RepositoryRestResource interface BlogRepository extends JpaRepository<Blog, Long> { }
17. @SpringBootApplication class NotesApplication fun main(args: Array<String>) { SpringApplication.run(NotesApplication::class.java, *args) } @Entity data class Note(@Id @GeneratedValue var id: Long? = null, var text: String? = null, @JsonIgnore var user: String? = null) @RepositoryRestResource interface NotesRepository : JpaRepository<Note, Long>
18. Microservices with Spring Boot https://developer.okta.com/blog/2017/06/15/build-microservices-architecture-spring-boot
19. Latest trends in Web Development? Progressive Web Applications JavaScript MVC Frameworks CSS 3 with Animations Mobile First Front-End Optimization REST and GraphQL APIs
22. Hot Frameworks hotframeworks.com
23. Hot Frameworks hotframeworks.com
24. Jobs on Indeed (US) April 2019 0 2,500 5,000 7,500 10,000 React Angular Vue Vanilla
25. Stack Overflow Tags April 2019 0 45,000 90,000 135,000 180,000 React Angular Vue
26. GitHub Stars April 2019 0 35,000 70,000 105,000 140,000 React Angular Vue
28. “Angular and React dominate: Nothing else even comes close.”
29. Wouldn’t it be hip if…? ⚭
30. @spring_io #springio17 JHipster jhipster.tech JHipster is a development platform to generate, develop and deploy Spring Boot + Angular/React Web applications and Spring microservices. and Vue! ✨
31. JHipster is Open Source Web Statistics, March 2019 420K Page Views / 692K on GitHub 97K Downloads GitHub Statistics 13K Stars 492 Contributors
32. JHipster Spring Boot Spring Security Angular React Bootstrap Metrics Maven or Gradle Authentication Type: cookie-based, JWT, or OAuth 2.0 / OIDC Type of Database: SQL or NoSQL Caching: EhCache or Hazelcast Elasticsearch Webpack Foundational Frameworks Project Options
33. How to use JHipster To install JHipster and Yeoman, use npm: npm install -g generator-jhipster Then create a directory and cd into it: mkdir myapp && cd myapp Then run JHipster: jhipster
34. Demo Time! Generate a basic blog application Look at its files and configuration 
 Generate the CRUD entities Limit blogs to current user, allow HTML Deploy to … all in 20 minutes!
35. Demo Entity Diagram
36. OAuth 2.0 and OpenID Connect OpenID Connect OAuth 2.0 HTTP OpenID Connect is for authentication
 
 OAuth 2.0 is for authorization
37. Validate ID Token Token Endpoint Authorization Endpoint /.well-known/
 openid-configuration JWKS Endpoint UserInfo Endpoint OAuth 2.0 Authorization Server & OpenID Connect Provider (OP) OAuth 2.0 Resource Server Client (Relying Party) 1 3 2 5 4 1 Discover OpenID Provider Metadata 2 Perform OAuth flow to obtain a ID token and/or access token 3 Get JSON Web Key Set (JWKS) for signature keys 4 Validate ID token
 (JSON Web Token) 5 Get additional user attributes with access token from UserInfo endpoint OpenID Connect
38. Get Started with JHipster 5 Demo https://github.com/mraible/jhipster5-demo | https://youtu.be/-VQ_SVkaXbs
39. React PWA with JHipster 5 https://developer.okta.com/blog/2018/06/25/react-spring-boot-photo-gallery-pwa
41. JHipster is Knowledge
42. The JHipster Mini-Book Written with Asciidoctor Quick and to the point, 164 pages Developed a Real World App: www.21-points.com Free Download from infoq.com/minibooks/jhipster-mini-book
43. Lines of Code in 21-Points 0 6500 13000 19500 26000 Project Created Entities Generated Business Logic and UI 25,670 23,590 16,728
44. Project Creation Entities Generated Biz Logic and UI 0 10000 20000 30000 2,999 2,648 1,839 9,472 8,911 5,523 8,383 7,696 5,892 Java TypeScript HTML Lines of Code by Language
45. Learn More stackoverflow.com Spring Boot spring.io/guides JHipster www.jhipster.tech Okta APIs developer.okta.com
46. Getting Help stackoverflow.com/tags/jhipster gitter.im/jhipster/generator-jhipster github.com/jhipster/.../CONTRIBUTING.md groups.google.com/.../jhipster-dev
47. What’s New and Next? JHipster 6 Beta now available! JDK 8+ Compatibility Spring Boot 2.1 / Spring Webflux Vue Support Updated OAuth 2.0 / OIDC
48. Get Started with JHipster 6 https://developer.okta.com/blog/2019/04/04/java-11-java-12-jhipster-oidc
49. developer.okta.com/blog
50. Action! Try Spring Boot Try Angular, React, or Vue Try JHipster Explore PWAs Enjoy the bootiful experience!
51. Questions? Keep in touch! raibledesigns.com @mraible Presentations speakerdeck.com/mraible Code github.com/oktadeveloper