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.

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
6. developer.okta.com
7. What About You?
8. Bootiful Development http://bit.ly/boot-and-react
9. 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
10. 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
11. SPRING INITIALIZR @ start.spring.io
13. @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> { }
14. @spring_io #springio17 Microservices with Spring Boot https://developer.okta.com/blog/2017/06/15/build-microservices-architecture-spring-boot
15. @spring_io #springio17 Secure Microservices with Spring Boot https://developer.okta.com/blog/2018/02/13/secure-spring-microservices-with-oauth
16. Demo: Build a Spring Boot API
17. ES6, ES7 and TypeScript ES5: es5.github.io ES6: git.io/es6features ES7: bit.ly/es7features TS: www.typescriptlang.org TS ES7 ES6 ES5
18. 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
19. @spring_io #springio17 bus.ts
20. “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
21. @spring_io #springio17 Leading JavaScript Frameworks in 2019 angular.io facebook.github.io/react vuejs.org
23. “2018: The Year of React React won the popularity battle in 2017.”
25. “React kept a firm grip on its lead in 2018.”
26. Crunch the Numbers
27. Hot Frameworks hotframeworks.com
28. Hot Frameworks hotframeworks.com
29. Jobs on Indeed (US) April 2019 0 2,500 5,000 7,500 10,000 React Angular Vue Vanilla
30. Stack Overflow Tags April 2019 0 45,000 90,000 135,000 180,000 React Angular Vue
31. GitHub Stars April 2019 0 35,000 70,000 105,000 140,000 React Angular Vue
32. Hello World with React http://codepen.io/gaearon/pen/ZpvBNJ?editors=0100 <div id="root"></div> <script> ReactDOM.render( <h1>Hello, world!</h1>, document.getElementById('root') ); </script>
33. 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);
34. 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> ); }
36. Learning React https://vimeo.com/213710634
37. @spring_io #springio17 React Courses on egghead.io https://blog.kentcdodds.com/learn-react-fundamentals-and-advanced-patterns-eac90341c9db
38. @spring_io #springio17 Progressive Web Apps
39. “We’ve failed on mobile” — Alex Russell https://youtu.be/K1SFnrf4jZo
40. 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
41. 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
42. Learn More about PWAs https://developer.okta.com/blog/2017/07/20/the-ultimate-guide-to-progressive-web-applications
43. 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; … } }
44. @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! ✨
46. 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
47. Action! Try Spring Boot Try React Try Okta Explore PWAs Enjoy the bootiful experience!
48. DIY: Bootiful Development http://bit.ly/boot-and-react
49. CRUD with React and Spring Boot http://bit.ly/react-boot-crud
50. Bootiful React with a Java EE API https://developer.okta.com/blog/2018/09/12/secure-java-ee-rest-api
51. developer.okta.com/blog @oktadev
52. Questions? Keep in touch! raibledesigns.com @mraible Presentations speakerdeck.com/mraible Code github.com/oktadeveloper