Get Hip with JHipster - Boston JUG 2018

JHipster Tutorials:

* Get Started with JHipster 5: https://github.com/mraible/jhipster5-demo
* Build a Photo Gallery PWA with React, Spring Boot, and JHipster: https://developer.okta.com/blog/2018/06/25/react-spring-boot-photo-gallery-pwa
* Develop a Microservices Architecture with OAuth 2.0 and JHipster: https://developer.okta.com/blog/2018/03/01/develop-microservices-jhipster-oauth

YouTube Screencasts:

* Get Started with JHipster 5: https://youtu.be/-VQ_SVkaXbs
* Build a Photo Gallery PWA with React, Spring Boot, and JHipster: https://youtu.be/GlJWUqy1SJM

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.

JHipster was started by Julien Dubois in October 2013 (Julien’s first commit was on October 21, 2013). The first public release (version 0.3.1) was launched December 7, 2013. Since then, the project has had over 170 releases! It is an open-source, Apache 2.0-licensed project on GitHub. It has a core team of 19 developers and over 430 contributors. You can find its homepage at https://www.jhipster.tech. If you look at the project on GitHub, you can see it’s mostly written in JavaScript (33%) and Java (27%).

At its core, JHipster is a Yeoman generator. Yeoman is a code generator that generates complete applications or useful pieces of an application. Yeoman generators promote what the Yeoman team calls the “Yeoman workflow”. This is an opinionated client-side stack of tools that can help developers quickly build beautiful web applications. It takes care of providing everything needed to get working without the normal pains associated with a manual setup.

Transcript

1. Matt Raible | @mraible Get Hip with JHipster Workshop August 14, 2018 Photo Credit: https://www.flickr.com/photos/captainkimo/12951104975
2. Blogger on raibledesigns.com Old Fashioned Java Developer turned Java Hipster Father, Skier, Mountain Biker, Whitewater Rafter Open Source Connoisseur 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. Hipster n. noun 1. One who is exceptionally aware of or interested in the latest trends and tastes.
14. Latest trends in JavaLand? Microservices Embedded App Servers Deployment with Containers Environments: dev, test, production Auto-Configuration Monitoring
15. 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
16. SPRING INITIALIZR @ start.spring.io
17. @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> { }
18. @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>
20. Microservices with Spring Boot https://developer.okta.com/blog/2017/06/15/build-microservices-architecture-spring-boot
21. Latest trends in Web Development? Progressive Web Applications JavaScript MVC Frameworks CSS 3 with Animations Mobile First Front-End Optimization REST APIs
24. Hot Frameworks hotframeworks.com
25. Jobs on Indeed (US) August 2018 0 2,500 5,000 7,500 10,000 React Angular Vue Vanilla
26. Stack Overflow Tags August 2018 0 35,000 70,000 105,000 140,000 React Angular Vue
27. GitHub Stars August 2018 0 30,000 60,000 90,000 120,000 React Angular Vue
29. “Angular and React dominate: Nothing else even comes close.”
30. Wouldn’t it be hip if…? ⚭
31. What is JHipster? www.jhipster.tech
32. JHipster is Open Source Web Statistics, July 2018 430K Page Views / 2.4M on GitHub 90K Downloads GitHub Statistics 11K Stars 435 Contributors
33. 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
34. 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
35. 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! ☁
36. Demo Entity Diagram
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, 160 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 5750 11500 17250 23000 Project Created Entities Generated Business Logic and UI 22,876 21,355 15,173
44. Learn More stackoverflow.com Spring Boot spring.io/guides JHipster www.jhipster.tech Okta APIs developer.okta.com
45. Getting Help stackoverflow.com/tags/jhipster gitter.im/jhipster/generator-jhipster github.com/jhipster/.../CONTRIBUTING.md groups.google.com/.../jhipster-dev
46. developer.okta.com/blog
47. Questions? Keep in touch! raibledesigns.com @mraible Presentations speakerdeck.com/mraible Code github.com/oktadeveloper
48. Lab: Create a JHipster 5 Monolith https://github.com/mraible/jhipster5-demo