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Front Ends for Back End Developers - Spring IO 2017

Front Ends for Back End Developers - Spring IO 2017

YouTube: https://www.youtube.com/watch?v=HnX09pdxEQI

Are you a backend developer that’s being pushed into front end development? Are you frustrated with all JavaScript frameworks and build tools you have to learn to be a good UI developer? If so, this session is for you! We’ll explore the tools of the trade for fronted development (npm, yarn, Gulp, Webpack, Yeoman) and learn the basics of HTML, CSS, and JavaScript. We’ll dive into the intricacies of Bootstrap, Material Design, ES6, and TypeScript. Finally, after getting you up to speed with all this new tech, we’ll show how it can all be found and integrated through the fine and dandy JHipster project.

Matt Raible

May 18, 2017

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    Mountain Biker, Whitewater Rafter Open Source Connoisseur Who is Matt Raible? Bus Lover Okta Developer Advocate
  2. @spring_io #springio17 What about You? How many consider themselves backend

    developers? Java, .NET, Python, or Node.js? Do you write code for UIs? Do you like JavaScript? What JavaScript Frameworks do you use?
  3. @spring_io #springio17 ES6, ES7 and TypeScript ES5: es5.github.io ES6: git.io/es6features

    ES7: bit.ly/es7features TS: www.typescriptlang.org TS ES7 ES6 ES5
  4. @spring_io #springio17 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
  5. “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
  6. @spring_io #springio17 Front End Build Tools Old School: Gulp New

    School: SystemJS Hip: Webpack Web Dependencies: Old School: Bower New School: npm Hip: yarn
  7. @spring_io #springio17 Yeoman The web's scaffolding tool for modern webapps

    Helps you kickstart new projects Promotes the Yeoman workflow yeoman.io
  8. @spring_io #springio17 Gulp gulp.task('serve', function() { browserSync.init({ server: './app' });

    gulp.watch(['app/**/*.js', 'app/**/*.css', 'app/**/*.html']) .on('change', browserSync.reload); });
  9. @spring_io #springio17 webpack.config.js module.exports = { entry: './src/app.js', output: {

    path: __dirname + '/src/main/webapp/public', filename: 'bundle.js' }, module: { loaders: [ { test: /.js$/, loader: 'babel', exclude: /node_modules/, query: { presets: ['es2015', 'react'] } } ] } };
  10. @spring_io #springio17 webpack for real tasks Building front-end and adding

    compilation Decreasing front-end size and improving assets caching Speeding up build and improving the development workflow iamakulov.com/pages/webpack
  11. @spring_io #springio17 @spring_io #springio17 Jobs on Indeed May 2017 0

    2,000 4,000 6,000 8,000 Angular Aurelia Backbone Ember Knockout React Vue
  12. @spring_io #springio17 @spring_io #springio17 Stack Overflow Tags May 2017 0

    12,500 25,000 37,500 50,000 Angular Aurelia Backbone Knockout Ember React Vue
  13. @spring_io #springio17 @spring_io #springio17 GitHub Stars May 2017 0 17,500

    35,000 52,500 70,000 Angular Aurelia Backbone Knockout Ember React Vue
  14. @spring_io #springio17 Hello World with Angular import { Component }

    from '@angular/core'; @Component({ selector: 'my-app', template: `<h1>Hello {{name}}</h1>` }) export class AppComponent { name = 'World'; } <my-app></my-app> https://angular.io/docs/ts/latest/quickstart.html
  15. @spring_io #springio17 Hello World with Angular import { BrowserModule }

    from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { FormsModule } from '@angular/forms'; import { HttpModule } from '@angular/http'; import { AppComponent } from './app.component'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, FormsModule, HttpModule ], providers: [], bootstrap: [AppComponent] }) export class AppModule { }
  16. @spring_io #springio17 Hello World with Angular import { enableProdMode }

    from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { AppModule } from './app/app.module'; import { environment } from './environments/environment'; if (environment.production) { enableProdMode(); } platformBrowserDynamic().bootstrapModule(AppModule);
  17. @spring_io #springio17 Get Started with Angular Angular QuickStart https://angular.io/docs/ts/latest/quickstart.html Angular

    Seed https://github.com/mgechev/angular-seed Angular Seed Advanced https://github.com/NathanWalker/angular-seed-advanced
  18. @spring_io #springio17 ng-book 2 A comprehensive guide to developing with

    Angular 4 Worth all your hard earned $$$ https://www.ng-book.com/2 “Thank you for the awesome book, it's the bible for Angular.” — Vijay Ganta
  19. @spring_io #springio17 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>
  20. @spring_io #springio17 Imperative Code if (count > 99) { if

    (!hasFile()) { 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);
  21. @spring_io #springio17 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> ); }
  22. @spring_io #springio17 Hello World with Vue.js https://jsfiddle.net/chrisvfritz/50wL7mdz/ <div id="app"> <p>{{

    message }}</p> </div> <script> new Vue({ el: '#app', data: { message: 'Hello Vue.js!' } }); </script>
  23. @spring_io #springio17 Vue.js Code <script src="https://unpkg.com/vue/dist/vue.js"></script> <div id="app"> <button v-on:click="clickedButton()">Click

    here!</button> </div> <script> new Vue({ el: '#app', methods: { clickedButton: function(event) { console.log(event); alert("You clicked the button!"); } } }); </script>
  24. @spring_io #springio17 Cascading Style Sheets #app { background: #eee; }

    .blog-post { padding: 20px; } .blog-post > p:first { font-weight: 400; } img + span.caption { font-style: italic; }
  25. @spring_io #springio17 Sass: Syntactically Awesome Style Sheets #app { background:

    #eee; .blog-post { padding: 20px; > p:first { font-weight: 400; } img + span.caption { font-style: italic; } } } http://sass-lang.com
  26. @spring_io #springio17 @spring_io #springio17 CSS Framework Stars on GitHub May

    2017 0 30,000 60,000 90,000 120,000 Bootstrap Foundation Pure Skeleton
  27. @spring_io #springio17 Front End Performance Optimization Reduce HTTP Requests Gzip

    HTML, JavaScript, and CSS Far Future Expires Headers Code Minification Optimize Images
  28. @spring_io #springio17 HTTP/2 Binary, instead of textual Fully multiplexed, instead

    of ordered and blocking Can use one connection for parallelism Uses header compression to reduce overhead Allows servers to “push” responses proactively into client caches
  29. @spring_io #springio17 HTTP/2 in JHipster /* * Enable HTTP/2 for

    Undertow - https://twitter.com/ankinson/status/829256167700492288 * HTTP/2 requires HTTPS, so HTTP requests will fallback to HTTP/1.1. * See the JHipsterProperties class and your application-*.yml configuration files * for more information. */ if (jHipsterProperties.getHttp().getVersion().equals(JHipsterProperties.Http.Version.V_2_0)) { if (container instanceof UndertowEmbeddedServletContainerFactory) { ((UndertowEmbeddedServletContainerFactory) container) .addBuilderCustomizers((builder) -> { builder.setServerOption(UndertowOptions.ENABLE_HTTP2, true); }); } }
  30. @spring_io #springio17 HTTP/2 Server Push in Java http://bit.ly/dz-server-push-java @WebServlet(value =

    {"/http2"}) public class Http2Servlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) { PushBuilder pushBuilder = req.newPushBuilder(); pushBuilder.path("images/kodedu-logo.png") .addHeader("content-type", "image/png") .push(); try (PrintWriter respWriter = resp.getWriter();) { respWriter.write("<html>" + "<img src='images/kodedu-logo.png'>" + "</html>"); } } }
  31. @spring_io #springio17 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
  32. @spring_io #springio17 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
  33. @spring_io #springio17 @spring_io #springio17 Security: OWASP Top 10 1. Injection

    2. Broken Auth & Session Mgmt 3. Cross-Site Scripting (XSS) 4. Broken Access Control 5. Security Misconfiguration 6. Sensitive Data Exposure 7. Insufficient Attack Protection 8. Cross-Site Request Forgery 9. Components w/ Vulnerabilities 10. Underprotected APIs
  34. @spring_io #springio17 The JHipster Mini-Book 2.0 Release on Dec 5,

    2016 jhipster-book.com 21-points.com @jhipster_book Write your own InfoQ mini-book! github.com/mraible/infoq-mini-book
  35. @spring_io #springio17 What You Learned ES6 and TypeScript Node.js and

    nvm Angular, React, and Vue.js CSS and Sass Front End Performance Optimization Progressive Web Apps
  36. @spring_io #springio17 Quality “A person who knows how to fix

    motorcycles—with Quality—is less likely to run short of friends than one who doesn't. And they aren't going to see him as some kind of object either. Quality destroys objectivity every time.” — Zen and the Art of Motorcycle Maintenance
  37. @spring_io #springio17 Software Testing With motorcycles, you drive to test

    them. With software, you can test it without driving it. Or rather, you can automate the driving. If you don’t automate tests, you’re still testing!
  38. @spring_io #springio17 Action! Don’t be afraid to try new things

    Learn JavaScript Try one of these frameworks Form your own opinions Or just wait a few months…