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Microservices for the Masses with Spring Boot, JHipster, and OAuth - GIDS 2019

Microservices for the Masses with Spring Boot, JHipster, and OAuth - GIDS 2019

Microservices are being deployed by many Java Hipsters. If you're working with a large team that needs different release cycles for product components, microservices can be a blessing. If you're working at your VW Restoration Shop and running its online store with your own software, having five services to manage and deploy can be a real pain.

This presentation will show you how to use JHipster to create Angular + Spring Boot apps with a unified front-end. You will leave with the know-how to create your own excellent apps!

Bonus: I'll show you how to use Ionic for JHipster to create native applications on mobile. It's pretty darn slick!


Matt Raible

April 24, 2019


  1. Microservices for the Masses with Spring Boot, JHipster, and OAuth

    April 24, 2019 Matt Raible | @mraible Photo by Premnath Thirumalaisamy #GIDS19
  2. Do you use microservices?

  3. None
  4. Blogger on and Web Developer and Java Champion

    Father, Husband, Skier, Mountain Biker, Whitewater Rafter Open Source Connoisseur Hi, I’m Matt Raible! Bus Lover Okta Developer Advocate
  5. None
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  9. What About You?

  10. Agenda 1. Introduction to Microservices 2. Microservices with JHipster 3.

    Deploying to the Cloud 4. Developing Mobile Apps with JHipster 5. JHipster Roadmap
  11. Part 1 Introduction to Microservices History of Microservices Microservices Architecture

    Philosophy Why Microservices? Demo: A Microservices Architecture with Spring Boot and Spring Cloud
  12. None
  13. Microservices Visionaries

  14. None
  15. “Any organization that designs a system (defined broadly) will produce

    a design whose structure is a copy of the organization's communication structure.” Conway’s Law Melvin Conway 1967
  16. “Do one thing and do it well.”

  17. “You shouldn't start with a microservices architecture. Instead begin with

    a monolith, keep it modular, and split it into microservices once the monolith becomes a problem.” Martin Fowler March 2014
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  22. Microservices with Spring Boot

  23. Demo Using, create: A service registry A gateway A

    catalog service Create an endpoint in the catalog service Create a filtered endpoint in the gateway Show failover capabilities Show Spring Security OAuth boot-microservices-example
  24. Microservices with JHipster What is JHipster? Installing and Using JHipster

    JHipster’s Microservice Features Progressive Web Applications Overview Part 2
  25. What is JHipster? + =

  26. @spring_io #springio17 JHipster JHipster is a development platform to

    generate, develop and deploy Spring Boot + Angular/React Web applications and Spring microservices. and Vue! ✨
  27. JHipster is Inclusive

  28. A powerful workflow to build your application with Yeoman, Webpack/

    Gulp and Maven/Gradle JHipster Goals A sleek, modern, mobile-first front- end with Angular and Bootstrap A high-performance and robust Java stack on the server side with Spring Boot A robust microservice architecture with JHipster Registry, Netflix OSS, Elastic Stack, and Docker
  29. How to Use JHipster Install JHipster and Yeoman, using npm:

    npm install -g generator-jhipster Create a directory and cd into it: mkdir newapp && cd newapp Run it! jhipster
  30. @spring_io #springio17 Microservices with JHipster


  32. 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 OAuth 2.0 and OIDC
  33. Back to redirect URI with authorization code Exchange code

    for access token and ID token Email ********** Go to authorization server Redirect URI: Scope: openid profile Authorization Server Connect with Google Resource owner Client 
 Allow Yelp to access your public profile and contacts? No Yes Request consent from resource owner Hello Matt! Get user info 
 with access token /userinfo OAuth 2.0 and OIDC
  34. Monolith Examples JHipster 5 Demo 21-Points Health
  35. Progressive Web Apps Originate from a secure origin, load while

    offline, and reference a web app manifest.
  36. Progressive Web Apps Can be installed on your mobile device,

    look and act like a native application, but are distributed through the web.
  37. Progressive Web Apps Are fast!

  38. Enable PWA in JHipster <script> if ('serviceWorker' in navigator) {

    window.addEventListener('load', function() { navigator.serviceWorker.register('/service-worker.js') .then(function () { console.log('Service Worker Registered'); }); }); } </script> gateway/src/main/webapp/index.html
  39. Force HTTPS in Spring Boot gateway/src/main/java/com/okta/developer/gateway/config/ @Configuration public class OAuth2SsoConfiguration

    extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.requiresChannel() .requestMatchers(r -> r.getHeader("X-Forwarded-Proto") != null) .requiresSecure(); } }
  40. Demo Using JHipster, create: A gateway A store microservices app

    A blog microservices app Generate entities in apps and on gateway Convert gateway to be a PWA Run everything in Docker jhipster-microservices-oauth-example
  41. Part 3 Deploy to the Cloud Options for Deploying JHipster

    Heroku Cloud Foundry AWS Google Cloud Microsoft Azure
  42. For monoliths: jhipster heroku For microservices: Deploy JHipster Registry Build

    and deploy microservice Build and deploy gateway
  43. For monoliths: jhipster cloudfoundry For microservices: Deploy JHipster Registry Build

    and deploy microservice Build and deploy gateway
  44. Using Elastic Container Service jhipster aws-containers Using Elastic Beanstalk jhipster

    aws Boxfuse boxfuse run -env=prod
  45. mvn package -Pprod jib:dockerBuild jhipster kubernetes ./ kubectl get svc

    gateway develop-microservices-with-jhipster
  46. Demo Build Your JHipster App for Production Deploy with Kubernetes

    and Minikube Deploy to Google Cloud jhipster-microservices-example
  47. Part 4 Developing Mobile Apps with JHipster What is Ionic?

    Why? Ionic Module for JHipster JWT and OIDC Support Entity Generator
  48. Ionic Ionic Framework Develop Hybrid & PWA Apps Stencil

    Vanilla Web Components PWA Toolkit Lightning fast PWAs team/ionic-pwa-toolkit
  49. Why? The first version of 21-Points Health I wrote with

    JHipster 2.x was painful to use on a mobile device. Versions 4.x and 5.x are better, but still not great. I want to develop the best user experience. Native apps are painful to distribute, but work better than PWAs (on iOS).
  50. How is a mobile app for JHipster different from its

    Angular UI?
  51. Run it! yo jhipster-ionic Ionic Module for JHipster Because Ionic

    Apps need some JHipster too! Install Ionic and the Ionic Module for JHipster, using npm: npm install -g ionic generator-jhipster-ionic Profit!
  52. Use Ionic for JHipster to Create Mobile Apps

  53. Create an app: ignite new myapp -b ignite-jhipster Ignite JHipster Install Ignite CLI and Ignite JHipster, using npm: npm i -g ignite-cli ignite-jhipster Ignite! A React Native boilerplate for JHipster apps
  54. Build a Mobile App with React Native

  55. Part 5 JHipster Roadmap What You Learned What’s Next for

  56. What You Learned

  57. JHipster Mobile Apps and Microservices on Pluralsight

  58. What’s Next for JHipster? JHipster v6.0 Soon! Spring WebFlux

    Support Blueprint Support React Support
  59. The JHipster Mini-Book
 Written with Asciidoctor Free download from InfoQ: Quick and to the point, 164 pages Developed a real world app: v5.0.2 released last week!
  60. Learn More Spring Boot JHipster Okta APIs
  61. @oktadev

  62. React PWA with JHipster 5

  63. Action: Try JHipster! JHipster 5 Demo 21-Points Health
  64. git clone example.git Use the Source, Luke!

  65. Thanks! Keep in Touch @mraible Presentations Code