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Matt Raible | @mraible Bootiful Development with Spring Boot and React April 23, 2019 Photo by Premnath Thirumalaisam https://www.flickr.com/photos/premnath/9939139384

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Blogger on raibledesigns.com and developer.okta.com/blog Web Developer and Java Champion Father, Skier, Mountain Biker, Whitewater Rafter Open Source Connoisseur Who is Matt Raible? Bus Lover Okta Developer Advocate

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developer.okta.com

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What About You?

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Bootiful Development http://bit.ly/boot-and-react

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OAuth 2.0 Overview Today’s Agenda Why Spring Boot? Demo: Developing with Spring Boot Introduction to ES6 and TypeScript Why React? Demo: Developing with React Introduction to PWAs and JHipster

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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

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SPRING INITIALIZR @ start.spring.io

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@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 { }

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

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@spring_io #springio17 Secure Microservices with Spring Boot https://developer.okta.com/blog/2018/02/13/secure-spring-microservices-with-oauth

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Demo: Build a Spring Boot API

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ES6, ES7 and TypeScript ES5: es5.github.io ES6: git.io/es6features ES7: bit.ly/es7features TS: www.typescriptlang.org TS ES7 ES6 ES5

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TypeScript $ npm install -g typescript function greeter(person: string) {
 return "Hello, " + person;
 }
 
 var user = "Jane User";
 
 document.body.innerHTML = greeter(user); $ tsc greeter.ts https://www.typescriptlang.org/docs/tutorial.html

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@spring_io #springio17 bus.ts

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“Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non- blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world.” https://nodejs.org https://github.com/creationix/nvm

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@spring_io #springio17 Leading JavaScript Frameworks in 2019 angular.io facebook.github.io/react vuejs.org

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“2018: The Year of React React won the popularity battle in 2017.”

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“React kept a firm grip on its lead in 2018.”

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Crunch the Numbers

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Hot Frameworks hotframeworks.com

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Hot Frameworks hotframeworks.com

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Jobs on Indeed (US) April 2019 0 2,500 5,000 7,500 10,000 React Angular Vue Vanilla

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Stack Overflow Tags April 2019 0 45,000 90,000 135,000 180,000 React Angular Vue

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GitHub Stars April 2019 0 35,000 70,000 105,000 140,000 React Angular Vue

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Hello World with React http://codepen.io/gaearon/pen/ZpvBNJ?editors=0100
ReactDOM.render( <h1>Hello, world!</h1>, document.getElementById('root') );

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Imperative Code if (count > 99) { if (!hasFire()) { addFire(); } } else { if (hasFire()) { removeFire(); } } if (count === 0) { if (hasBadge()) { removeBadge(); } return; } if (!hasBadge()) { addBadge(); } var countText = count > 99 ? "99+" : count.toString(); getBadge().setText(countText);

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Declarative Code if (count === 0) { return
; } else if (count <= 99) { return (
{count}
); } else { return (
99+
); }

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Learning React https://vimeo.com/213710634

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@spring_io #springio17 React Courses on egghead.io https://blog.kentcdodds.com/learn-react-fundamentals-and-advanced-patterns-eac90341c9db

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@spring_io #springio17 Progressive Web Apps

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“We’ve failed on mobile” — Alex Russell https://youtu.be/K1SFnrf4jZo

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Mobile Hates You! How to fight back: Implement PRPL Get a ~$150-200 unlocked Android (e.g. Moto G4) Use chrome://inspect && chrome://inspect?tracing Lighthouse DevTools Network & CPU Throttling

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The PRPL Pattern Push critical resources for the initial URL route Render initial route Pre-cache remaining routes Lazy-load and create remaining routes on demand

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Learn More about PWAs https://developer.okta.com/blog/2017/07/20/the-ultimate-guide-to-progressive-web-applications

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Demo: Build a React Client class BeerList extends React.Component<{}, any> { constructor(props: any) { super(props); this.state = { beers: [], isLoading: false }; } componentDidMount() { this.setState({isLoading: true}); fetch('http://localhost:8080/good-beers') .then(response => response.json()) .then(data => this.setState({beers: data, isLoading: false})); } render() { const {beers, isLoading} = this.state; … } }

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@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! ✨

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The JHipster Mini-Book 5.0.2 Released last week! jhipster-book.com 21-points.com @jhipster_book Write your own InfoQ mini-book! github.com/mraible/infoq-mini-book

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Action! Try Spring Boot Try React Try Okta Explore PWAs Enjoy the bootiful experience!

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DIY: Bootiful Development http://bit.ly/boot-and-react

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CRUD with React and Spring Boot http://bit.ly/react-boot-crud

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Bootiful React with a Java EE API https://developer.okta.com/blog/2018/09/12/secure-java-ee-rest-api

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developer.okta.com/blog @oktadev

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