Matt Raible | @mraible Develop Hip APIs and Apps October 18, 2017 

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 

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public class Okta { public Okta(DeveloperDNA developerDna) { DeveloperRelations devRel = developerDna.getDeveloperRelations(); Assert.notNull(devRel,"Developer Relations is required to operate effectively."); Set team = devRel.getTeam(); Assert.isTrue(!team.isEmpty(),"Team cannot be empty."); Assert.isTrue(!devRel.getSdks().isEmpty(), "SDKs required for developers."); } } 

Authentication Standards 

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? 

Do you want to be a hip Java Developer? 

Java 8 Parallel Collections JSR 310 Date and Time API Functional Interfaces with default method Lambda Expressions (a.k.a. Closures) Nashorn JavaScript Engine 

Hipster n. noun 1. One who is exceptionally aware of or interested in the latest trends and tastes. 

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Latest trends in JavaLand? Microservices Embedded App Servers Deployment with Containers Environments: dev, test, production Auto-Configuration Monitoring 

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 

SPRING INITIALIZR @ start.spring.io 

@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 { } 

@SpringBootApplication class NotesApplication fun main(args: Array) { 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 

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@spring_io #springio17 Microservices with Spring Boot https://developer.okta.com/blog/2017/06/15/build-microservices-architecture-spring-boot 

Latest trends in Web Development? Progressive Web Applications JavaScript MVC Frameworks CSS 3 with Animations Mobile First Front-End Optimization REST APIs 

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@spring_io #springio17 Jobs on Indeed September 2017 0 1,750 3,500 5,250 7,000 Angular Aurelia Backbone Ember Knockout React Vue 

@spring_io #springio17 Stack Overflow Tags September 2017 0 20,000 40,000 60,000 80,000 Angular Aurelia Backbone Knockout Ember React Vue 

@spring_io #springio17 GitHub Stars September 2017 0 20,000 40,000 60,000 80,000 Angular Aurelia Backbone Knockout Ember React Vue 

@spring_io #springio17 GitHub Star Growth 

Wouldn’t it be hip if…? ⚭ 

JHipster www.jhipster.tech 

JHipster is Open Source Web Statistics, September 2017 312K Page Views / 455K on GitHub 42K Downloads GitHub Statistics 8165 Stars 366 Contributors 

JHipster Spring Boot Spring Security AngularJS Angular Bootstrap Metrics Maven or Gradle Authentication Type: cookie-based (with Social), JWT, or OAuth 2.0 Type of Database: SQL or NoSQL Caching: EhCache or Hazelcast Elasticsearch Gulp.js or Webpack Foundational Frameworks Project Options 

How to use JHipster To install JHipster and Yeoman, use npm: npm install -g yo generator-jhipster Then create a directory and cd into it: mkdir myapp && cd myapp Then run Yeoman: yo jhipster 

Generate a basic blog application Look at its files and configuration 
 Generate the CRUD entities Limit blogs to current user, allow HTML Deploy to Demo Time! … all in 20 minutes! ☁ 

Demo Entity Diagram 

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 

developer.okta.com 

Get Started with JHipster 4 Demo https://github.com/mraible/jhipster4-demo https://www.youtube.com/watch?v=XRREt1KB4Y8 

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JHipster is Knowledge 

The JHipster Mini-Book Written with Asciidoctor Quick and to the point, 130 pages Developed a Real World App: www.21-points.com Free Download from infoq.com/minibooks/jhipster-4-mini-book 

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 

Learn More twitter.com/java_hipster www.jhipster.tech github.com/jhipster/generator-jhipster Get Started with JHipster 4: https://youtu.be/XRREt1KB4Y8 JHipster Microservices, Google Cloud, and Kubernetes
 https://youtu.be/dgVQOYEwleA 

Getting Help stackoverflow.com/tags/jhipster gitter.im/jhipster/generator-jhipster github.com/jhipster/.../CONTRIBUTING.md groups.google.com/.../jhipster-dev 

What’s New and Next? http://start.jhipster.tech now available! JHipster Registry v3 Spring Boot 2.0 / Spring Webflux React Support OAuth 2.0 / OIDC Support https://www.slideshare.net/julien.dubois/jhipster-overview-and-roadmap-august-2017 

developer.okta.com/blog 

Action! Try Spring Boot Try Angular Try JHipster Explore PWAs Enjoy the bootiful experience! 

Questions? Keep in touch! raibledesigns.com @mraible Presentations speakerdeck.com/mraible Code github.com/oktadeveloper