Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Bootiful Development with Spring Boot and React - GIDS 2019

Bootiful Development with Spring Boot and React - GIDS 2019

To simplify development and deployment, you want everything in the same artifact, so you put your React app "inside" your Spring Boot app, right?

But what if you could create your React app as a standalone app and make cross-origin requests to your API? A client app that can point to any server makes it easy to test your current client code against other servers (e.g. test, staging, production).

This session shows how to develop with Java 8, Spring Boot, React, and TypeScript. You'll learn how to create REST endpoints with Spring MVC, configure Spring Boot to allow CORS, and create a React app to display its data.

Matt Raible

April 23, 2019
Tweet

More Decks by Matt Raible

Other Decks in Programming

Transcript

  1. Matt Raible | @mraible Bootiful Development with Spring Boot and

    React April 23, 2019 Photo by Premnath Thirumalaisam https://www.flickr.com/photos/premnath/9939139384
  2. 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
  3. 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
  4. 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
  5. @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> { }
  6. 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
  7. “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
  8. Jobs on Indeed (US) April 2019 0 2,500 5,000 7,500

    10,000 React Angular Vue Vanilla
  9. 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);
  10. Declarative Code if (count === 0) { return <div className="bell"/>;

    } else if (count <= 99) { return ( <div className="bell"> <span className="badge">{count}</span> </div> ); } else { return ( <div className="bell onFire"> <span className="badge">99+</span> </div> ); }
  11. 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
  12. 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
  13. 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; … } }
  14. @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! ✨
  15. 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