avatar-matt-raible.jpg Matt Raible

Matt Raible is a well-known figure in the Java community and has been building web applications for most of his adult life. For over 20 years, he has helped developers learn and adopt open source frameworks and use them effectively. He's a web developer, Java Champion, and Developer Advocate at Okta. Matt has been a speaker at many conferences worldwide, including Devoxx Belgium, Devoxx France, Jfokus, and Devnexus. He is the author of The JHipster Mini-Book, Spring Live, and contributed to Pro JSP. He is frequent contributor to open source and a member of the JHipster development team. You can find him online at raibledesigns.com.

Heroku + Docker with Secure React in 10 Minutes

You’ve built a React app, but now you need to deploy it. What do you do? First, it’s probably best to choose a cloud provider as they’re typically low-cost and easy to deploy to. Most cloud providers offer a way to deploy a static site. Heroku supports static sites, easily deploys apps with Git, and provides a CLI that developers love. A built React app is just JavaScript, HTML, and CSS. They’re static files that...

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Angular + Docker with a Big Hug from Spring Boot

Building modern apps with Angular and Spring Boot is a common practice these days. In fact, if I use Google’s Keyword Planner to look up popular search terms, it’s one of the most popular combinations. The results in the list below are average monthly searches and not limited by location. This tutorial is the fourth and final in a series on Angular and Spring Boot in 2020. In the first one, I showed how to...

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Node.js Login with Express and OIDC

Node.js just celebrated its 11th birthday on May 27! With the state of things nows, it’s pretty crazy to think back to the massive JavaScript Renaissance boost of 2009. In case you’re not aware, the JavaScript Renaissance began in around 2004 with Ajax, increased exponentially with jQuery in the mid-2000s, and then really took off with Node.js and a plethora of early JavaScript web frameworks; including Backbone.js, Ember.js, and AngularJS. Today, I’d like to show...

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Angular Deployment with a Side of Spring Boot

One of the more popular combinations of frontend and backend frameworks is Angular + Spring Boot. I’ve written several tutorials about how to combine the two—from keeping them as separate apps to combining them into a single artifact. But, what about deployment? Developers ask me from time-to-time, "What’s the best way to do Angular deployment?" In this tutorial, I’ll show you several options. I’ll start by showing you how to deploy a Spring Boot app...

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Mobile Development with Ionic, React Native, and JHipster

Mobile development offers a lot of options. To develop native apps, you can use Java or Kotlin on Android. On iOS, you can use Objective C or Swift. There are other options, too. You can build hybrid mobile apps and Progressive Web Apps (PWAs). Hybrid mobile apps are those created with web technologies (HTML, JavaScript, and CSS) that look like native apps. PWAs have the ability to work offline and act like mobile apps too....

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Security Patterns for Microservice Architectures

If you attend a lot of Java ecosystem conferences, you’ll think that everyone uses microservices. It’s a trendy topic, and developers everywhere are interested in learning about them. For a good reason too! Microservice architectures are a technique for delivering code faster. Chris Richardson is a friend and expert on microservices. He suggests a helpful guideline in a recent blog post: Why microservices? IF you are developing a large/complex application AND you need to deliver...

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Build Beautiful Angular Apps with Bootstrap

I’ve been a longtime fan of CSS frameworks since 2005. I led an open-source project called AppFuse at the time and wanted a way to provide themes for our users. We used Mike Stenhouse’s CSS Framework and held a design content to gather some themes we liked for our users. A couple of other CSS frameworks came along in the next few years, namely Blueprint in 2007 and Compass in 2008. However, no CSS frameworks...

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Build a Secure Blog with Gatsby, React, and Netlify

Gatsby is a tool for creating static websites with React. It allows you to pull your data from virtually anywhere: content management systems (CMSs), Markdown files, APIs, and databases. Gatsby leverages GraphQL and webpack to combine your data and React code to generate static files for your website. JAM - JavaScript, APIs, and Markup - apps are delivered by pre-rendering files and serving them directly from a CDN, removing the requirement to manage or run...

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Build a CRUD App with Angular 9 and Spring Boot 2.2

Angular is a web framework for building mobile and desktop applications. Its first version, AngularJS, was one of the first JavaScript MVC frameworks to dominate the web landscape. Developers loved it, and it rose to popularity in the early 2010s. AngularJS 1.0 was released on June 14, 2014. Angular 9 was recently released, giving Angular quite a successful run in the land of web frameworks. Spring Boot is one of the most popular frameworks for...

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Semantic Versioning Sucks! Long Live Semantic Versioning

Hello, fellow developers. Have you ever been bitten by transitive dependencies changing in minor releases? I have. Semantic versioning is supposed to prevent this, and sure, semantic versioning is a great idea at its core, but when its guidance is not followed it sucks. People release minor versions without backward compatibility all-the-time. TL;DR? Semantic versioning sucks because humans get involved. In the early days, I don’t recall having much of a problem with dependencies and...

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Create a React Native App with Login in 10 Minutes

React Native is a mobile app development framework that allows you to use React to build native iOS and Android mobile apps. Instead of using a web view and rendering HTML and JavaScript, it converts React components to native platform components. This means you can use React Native in your existing Android and iOS projects, or you can create a whole new app from scratch. In this post, I’ll show you how to add a...

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Okta Developer Office Hours Q&A - September 2019 Edition

On September 19, 2019, we held our first Okta Developer office hours. Our goal was to host a live Q&A with developers that use Okta. Over 150 developers attended! We streamed the session live on YouTube, so you can watch it below if you like. We received around 60 questions during our live-stream and did not get a chance to answer them all. After close examination, we determined that many questions overlapped and ended up...

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Secure Reactive Microservices with Spring Cloud Gateway

So you wanna go full reactive, eh? Great! Reactive programming is an increasingly popular way to make your applications more efficient. Instead of making a call to a resource and waiting on a response, reactive applications asynchronously receive a response. This allows them to free up processing power, only perform processing when necessary, and scale more effectively than other systems. The Java ecosystem has its fair share of reactive frameworks, including Play Framework, Ratpack, Vert.x,...

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How to Win at UI Development in the World of Microservices

Microservices have become a popular and effective design for scaling development teams in large companies. A microservices architecture enables you to build and deploy services independently, providing developers autonomy, enthusiasm, and a passion for their work. These benefits are realized because they feel a sense of control over their own destiny. Allow me to demonstrate with a story about my time at LinkedIn. In early 2008, they asked me to do an analysis of Ruby...

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10 Myths About Java in 2019

Java turned 24 years old on May 23, 2019. That’s pretty old for a programming language. The fact that it’s still widely used and runs many of the world’s largest organizations is nothing short of incredible. But it has a unique impression problem among languages in that it means two very distinct things: Java the language and Java the runtime. Many developers, of course, think Java is old and therefore shouldn’t be used. And yet...

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Build Mobile Apps with Angular, Ionic 4, and Spring Boot

I’m a big fan of Ionic. I started using it several years ago when it was based on AngularJS. As a developer, I really liked it because I knew Angular. I found didn’t have to learn much more to be a productive developer with Ionic. What is Ionic? I’m glad you asked! Ionic is an open source project that allows you to build mobile apps using web tech. Technically, this is called a "hybrid" app...

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Tutorial: User Login and Registration in Ionic 4

Ionic allows you to develop PWAs and hybrid mobile apps. PWAs are web applications that run in a browser and allow for offline capabilities via service workers. They can be installed on desktops and mobile devices, just like you install apps on your smartphone. Hybrid mobile apps are like native mobile apps, except they’re built using web technologies. Ionic 2 was based on AngularJS. Ionic 3 was based on Angular. Ionic 4 allows you to...

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Java Microservices with Spring Cloud Config and JHipster

Developing a microservice architecture with Java and Spring Boot is quite popular these days. It’s definitely one of the most popular combinations in the Java ecosystem. If you need any proof, just look at all of the similar frameworks that have cropped up in the last few years: MicroProfile, Micronaut, and Quarkus, just to name a few. Spring Boot provided a much-needed spark to the Spring ecosystem when it was first released in 2014. Instead...

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Java Microservices with Spring Boot and Spring Cloud

Java is a great language to use when developing a microservice architecture. In fact, some of the biggest names in our industry use it. Have you ever heard of Netflix, Amazon, or Google? What about eBay, Twitter, and LinkedIn? Yes, major companies handling incredible traffic are doing it with Java. Implementing a microservices architecture in Java isn’t for everyone. For that matter, implementing microservices, in general, isn’t often needed. Most companies do it to scale...

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Use Schematics with Vue and Add Authentication in 5 Minutes

Schematics is a tool from the Angular team that allows you to manipulate projects with code. You can create files, update existing files, and add dependencies to any project that has a package.json file. That’s right, Schematics aren’t only for Angular projects! In this post, I’ll show you how to use Schematics to modify a project created with Vue CLI. Why Vue? Because it’s fast and efficient. Its default bundle size is smaller than Angular...

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Angular 8 + Spring Boot 2.2: Build a CRUD App Today!

If you’ve been a Java developer for more than 15 years, you probably remember when there were a plethora of Java web frameworks. It started with Struts and WebWork. Then Tapestry, Wicket, and JSF came along and championed the idea of component-based frameworks. Spring MVC was released in 2004 (in the same month as Flex 1.0 and JSF 1.0) and became the de-facto standard in Java web frameworks over the next six years. Then along...

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Pro Tips for Developer Relations, Part 2

Being a developer advocate can be a difficult job. Developer advocates are often responsible for writing blog posts, speaking at conferences, and helping developers use their company’s products. If there’s developer friction, it’s an advocate’s job to help educate their company about how to reduce it. Advocates are often recognized leaders in their communities, so they have to keep up that persona as well. Writing, traveling, speaking, educating, and helping can be exhausting. The first...

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Upgrading Spring Security OAuth and JUnit Tests through the 👀 of a Java Hipster

Using unit and integration tests to verify your code quality is an excellent way to show you care about your code. I recently did a bunch of work in the popular JHipster open source project to upgrade it to use the latest release of Spring Security. Spring Security 5.1+ adds OAuth 2.0 and OIDC as first-class citizens that you can configure with its elegant DSL (a.k.a. cool method chaining, a.k.a. the builder pattern). I’ve been...

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Better, Faster, Lighter Java with Java 12 and JHipster 6

There’s a lot going on in the Java ecosystem lately. Now that major Java versions are released every six months, it can be difficult to keep up. Personally, I develop the majority of my Java applications using Spring Boot. Because of this, I was stuck on Java 8 until Spring Boot 2.1 was released last October. Spring Boot 2.1 added Java 11 support, along with performance improvements, a new metrics implementation, new actuator endpoints, and...

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Secure Service-to-Service Spring Microservices with HTTPS and OAuth 2.0

Building a microservices architecture is possible with minimal code if you use Spring Boot, Spring Cloud, and Spring Cloud Config. Package everything up in Docker containers and you can run everything using Docker Compose. If you’re communicating between services, you can ensure your services are somewhat secure by not exposing their ports in your docker-compose.yml file. But what happens if someone accidentally exposes the ports of your microservice apps? Will they still be secure or...

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Use Schematics with React and Add OpenID Connect Authentication in 5 Minutes

Developers love to automate things. It’s what we do for a living for the most part. We create programs that take the tediousness out of tasks. I do a lot of presentations and live demos. Over the past year, I’ve noticed that some of my demos have too many steps to remember. I’ve written them down in scripts, but I’ve recently learned it’s much cooler to automate them with tools powered by Schematics! Schematics is...

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Devnexus 2019: Join the <dev/>olution

Hello, Developers! Have you ever been to the wonderful conference known as Devnexus? I attended for the first time two years ago and had a blast! It’s well organized, affordable, and has a diverse and fun crowd. This year, Okta is sponsoring Devnexus and we have a number of speakers sharing their wisdom. I thought it’d be fun to write a blog post that highlights my team members and what they’ll be talking about. If...

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i18n in Java 11, Spring Boot, and JavaScript

What are i18n and l10n? Internationalization (i18n) is the process of making your application capable of rendering its text in multiple languages. Localization (l10n) means your application has been coded in such a way that it meets language, cultural, or other requirements of a particular locale. These requirements can include formats for date, time, and currency, as well as symbols, icons, and colors, among many other things. i18n enables l10n. Why is i18n and l10n...

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Use Angular Schematics to Simplify Your Life

When I first started to learn Angular (it was called Angular 2 at the time), I was appalled by the number of files you needed to create to get a basic "Hello, World" example working. As Angular matured, a lot of this pain went away thanks to Angular CLI. Angular CLI is a command-line tool that generates a basic Angular project for you. In its 7.0 release, it started asking you questions about your application....

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Pro Tips for Developer Relations

I’ve been a professional developer advocate for a little over two years. I started out at Stormpath, and six months later, I leapt at the opportunity to do the same thing at Okta. I say "professional" because even though I’ve been a technical speaker since 2004, I never got paid for it. During my first year (2017) at Okta, I traveled and spoke a lot. A lot being more than I’d ever traveled and spoken...

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Which Java SDK Should You Use?

There has been a lot of confusion lately about Java and its available SDKs (Software Development Kits). You might’ve heard the Java SDK called the JDK. They’re one and the same. Java SE (Standard Edition) is a specification that’s governed by the JCP (Java Community Process). This process decides what goes into (or gets removed from the JDK). Anyone can implement the Java specification. If they pass the TCK (Test Compatibility Kit), they’re considered a...

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Learning Java as a First Language

I started programming in Java way back in 1999. I had just started a job as the director of web development at a small startup called eDeploy.com. I wrote a lot of HTML, CSS, and JavaScript for a SaaS product that helped companies install network equipment. The backend for our app was written in Java and we deployed to iPlanet Application Server. At our height, we trusted Loudcloud to run our software. I experienced a...

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Angular 7: What's New and Noteworthy + OIDC Goodness

Angular 7 was released earlier this quarter and I’m pumped about a few of its features. If you’ve been following Angular since Angular 2, you know that upgrading can sometimes be a pain. There was no Angular 3, but upgrading to Angular 4 wasn’t too bad, aside from a bunch of changes in Angular’s testing infrastructure. Angular 4 to Angular 5 was painless, and 5 to 6 only required changes to classes that used RxJS....

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Bootiful Development with Spring Boot and Vue

Vue is a web framework that’s gotten a lot of attention lately because it’s lean and mean. Its baseline framework cost is around 40K and is known as a minimalistic web framework. With all of the recent attention on web performance and mobile-first, mobile-fast, it’s no surprise that Vue has become more and more popular. If you spent the time to learn AngularJS back in the day, chances are you’ll find an old friend in...

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Spring Boot 2.1: Outstanding OIDC, OAuth 2.0, and Reactive API Support

Spring Boot 2.1 was recently released, eight months after the huge launch of Spring Boot 2.0. The reason I’m most excited about Spring Boot 2.1 to me is its improved performance and OpenID Connect (OIDC) support from Spring Security 5.1. The combination of Spring Boot and Spring Security has provided excellent OAuth 2.0 support for years, and making OIDC a first-class citizen simplifies its configuration quite a bit. For those that aren’t aware, OIDC is...

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Three Developer Tools I'm Thankful For

I ❤️ Thanksgiving. It’s one of my favorite holidays. I love it because it’s a time of reflection and gratitude. As an open source developer, I have a lot to be thankful for. Many of the tools I use are created by developers from around the world, and I get to use them for free! I’m also very thankful for my awesome job at @oktadev. I get to write example apps with open source software,...

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Build a Mobile App with React Native and Spring Boot

React Native is a framework for building mobile applications with React. React allows you to use a declarative style of programming to describe how your UI should look. It uses embedded HTML (called JSX) to render buttons, lists, scrollable views, and many other components. I’m a seasoned Java and JavaScript developer that loves Spring and TypeScript. Some might call me a Java hipster because I like JavaScript. In this post, I’m going to show you...

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Full Stack Reactive with Spring WebFlux, WebSockets, and React

Spring WebFlux can be used to create a REST API with streaming data. Spring WebFlux can also be integrated with WebSockets to provide notifications that clients can listen to. Combining the two is a powerful way to provide real-time data streaming to JavaScript or mobile clients. Add React to the mix and you have an excellent foundation for a full-stack reactive architecture. React is a UI toolkit (similar to GWT) that lets you build components...

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Build Reactive APIs with Spring WebFlux

Spring Boot 2.0 was a long-awaited release from the good folks at Pivotal. One of its new features is reactive web programming support with Spring WebFlux. Spring WebFlux is a web framework that’s built on top of Project Reactor, to give you asynchronous I/O, and allow your application to perform better. If you’re familiar with Spring MVC and building REST APIs, you’ll enjoy Spring WebFlux. There’s just a few basic concepts that are different. Once...

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Get Started with Reactive Programming in Spring

Reactive programming allows you to build systems that are resilient to high load. Handling lots of traffic isn’t a problem because the server is non-blocking and doesn’t block client processes to wait for responses. The client cannot directly observe, or synchronize with, the execution that occurs on the server. When an API is struggling to handle requests, it should respond in a sensible way. It shouldn’t fail to work or drop messages in an uncontrolled...

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Build a Desktop App with Electron and Authentication

Electron is a framework for building cross-platform desktop applications with web technologies like JavaScript, HTML, and CSS. It was created for GitHub’s Atom editor and has achieved widespread adoption since. Electron powers several apps that I use on a daily basis: Slack, Kitematic, and Visual Studio Code to name a few. Electron 2.0 was released in early May 2018, along with changes to the project to adhere to strict semantic versioning. This is good news...

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Build a Java REST API with Java EE and OIDC

Java EE allows you to build Java REST APIs quickly and easily with JAX-RS and JPA. Java EE is an umbrella standards specification that describes a number of Java technologies, including EJB, JPA, JAX-RS, and many others. It was originally designed to allow portability between Java application servers, and flourished in the early 2000s. Back then, application servers were all the rage and provided by many well-known companies such as IBM, BEA, and Sun. JBoss...

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Build a Basic CRUD App with Angular 7.0 and Spring Boot 2.1

Technology moves fast these days. It can be challenging to keep up with the latest trends as well as new releases of your favorite projects. I’m here to help! Spring Boot and Angular are two of my favorite projects, so I figured I’d write y’all a guide to show you how to build and secure a basic app using their latest and greatest releases. In Spring Boot, the most significant change in 2.0 is its...

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10 Excellent Ways to Secure Your Spring Boot Application

Spring Boot has dramatically simplified the development of Spring applications. Its autoconfiguration and starter dependencies reduce the amount of code and configuration you need to begin an app. If you were used to Spring and lots of XML back in the day, Spring Boot is a breath of fresh air. Spring Boot was first released in 2014, and a lot has changed since then. Much like code quality and testing, security has become a concern...

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Use React and Spring Boot to Build a Simple CRUD App

React was designed to make it painless to create interactive UIs. Its state management is efficient and only updates components when your data changes. Component logic is written in JavaScript, which means you can keep state out of the DOM and create components that are encapsulated. Developers like CRUD (create, read, update, and delete) apps because they show a lot of the base functionality that you need when creating an app. Once you have the...

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Add CI/CD to Your Spring Boot App with Jenkins X and Kubernetes

A lot has happened in the last five years of software development. What it means to build, deploy, and orchestrate software has changed drastically. There’s been a move from hosting software on-premise to public cloud and shift from virtual machines (VMs) to containers. Containers are cheaper to run than VMs because they require fewer resources and run as single processes. Moving to containers has reduced costs, but created the problem of how to run containers...

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Build a Health Tracking App with React, GraphQL, and User Authentication

I think you’ll like the story I’m about to tell you. I’m going to show you how to build a GraphQL API with Vesper framework, TypeORM, and MySQL. These are Node frameworks, and I’ll use TypeScript for the language. For the client, I’ll use React, reactstrap, and Apollo Client to talk to the API. Once you have this environment working, and you add secure user authentication, I believe you’ll love the experience! Why focus on...

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Build a Photo Gallery PWA with React, Spring Boot, and JHipster

At its core, React is just a UI toolkit, ala GWT, but it has a very healthy ecosystem around it that provides everything you need to build a kick-ass progressive web app (PWA). PWAs are cool because if they’re done right, they can offer a native-like experience for your users, allowing them to install your app, and use it when it’s offline. But, “why React?” is what you’re probably asking yourself right now, right? Well,...

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Deploy Your Secure Spring Boot + Angular PWA as a Single Artifact

I’ve written several posts on this blog that show you how to develop an Angular SPA (single-page application) that talks to a Spring Boot API. In almost all of them, I’ve used OAuth 2.0’s implicit flow and built, tested, and deployed them as separate applications. IMHO, this is the way many applications (outside of the Java world) are built and deployed. What if you could combine the two applications for production, and still get all...

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Build and Secure Microservices with Spring Boot 2.0 and OAuth 2.0

Spring Boot has experienced massive adoption over the last several years. For Spring users, it offers a breath of fresh air, where they don’t have to worry about how things are configured if they’re comfortable with defaults. The Spring Boot ecosystem is filled with a wealth of what they call starters. Starters are bundles of dependencies that autoconfigure themselves to work as a developer might expect. Spring Boot allows you to create standalone web apps,...

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Angular 6: What's New, and Why Upgrade

Angular 6 is now available and it’s not a drop-in replacement for Angular 5. If you’ve been developing with Angular since Angular 2, you likely remember that it wasn’t too difficult to upgrade to Angular 4 or Angular 5. In most projects, you could change the version numbers in your package.json and you were on your way. In fact, the most significant change I remember in the last couple of years was the introduction of...

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The Hitchhiker's Guide to Testing Spring Boot APIs and Angular Components with WireMock, Jest, Protractor, and Travis CI

Writing apps with Spring Boot and Ionic (which is built on Angular) can be fun because both frameworks offer a good developer experience (DX). You change a file, save it, and the app automatically reloads with your changes. This feature is often called hot-reload and it’s a blissful way to develop. It’s so nice, it can cause you to forget about automating your tests. I’ll admit, writing tests is difficult to do. Writing the test...

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How to Achieve Massive Productivity at Work

“Productivity is all about efficiency and planning.” – Mahdi Yusuf, Iterate 2018 Like most developers, I love getting shit done. My best days are when I feel like I’ve been massively productive. When the Stormpath team joined Okta in February 2018, it was a tough transition at first. I’d started to get into the flow of writing blog posts about Stormpath’s SDKs and had a bunch queued up. But Okta didn’t have SDKs like Stormpath,...

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Build a React Native Application and Authenticate with OAuth 2.0

With Okta and OpenID Connect (OIDC) you can easily integrate authentication into a React Native application and never have to build it yourself again. OIDC allows you to authenticate directly against the Okta API, and this article shows you how to do just that in a React Native application. Today you’ll see how to log a user into your React Native application using an OIDC redirect via the AppAuth library. React Native is a pretty...

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Open Source Framework Samples and Quickstarts for Okta's Developer APIs

Developers love sample applications. It’s one thing to see the steps to create an application or feature; but when someone provides a working app you can just build and run it’s simply fantastic. Open source is near and dear to many developers today. Many of the frameworks we use to build applications are open source. It’s a great way to develop widely-used software and get contributions from your users. Okta’s Developer Experience (DevEx) team believes...

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Develop a Microservices Architecture with OAuth 2.0 and JHipster

JHipster is a development platform to generate, develop, and deploy Spring Boot + Angular web applications and Spring microservices. It supports using many types of authentication: JWT, session-based, and OAuth 2.0. In its 5.0 release, it added React as a UI option. In addition to having two popular UI frameworks, JHipster also has modules that support generating mobile applications. If you like Ionic, which currently leverages Angular, you can use Ionic for JHipster. If you’re...

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Secure a Spring Microservices Architecture with Spring Security and OAuth 2.0

Building a microservices architecture with Spring Boot and Spring Cloud can allow your team to scale and develop software faster. It can add resilience and elasticity to your architecture that will enable it to fail gracefully and scale infinitely. All this is great, but you need continuous deployment and excellent security to ensure your system stays up-to-date, healthy, and safe for years to come. With Spring Security and its OAuth 2.0 support, you have everything...

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Use Ionic for JHipster to Create Mobile Apps with OIDC Authentication

We 💙 Ionic, JHipster, and Java here at Okta. Ionic is a framework for building native mobile apps using web technologies. Technically, this is called a “hybrid” app because it’s not using native SDKs. Hybrid mobile apps are distributed just like native apps: they can be installed on mobile devices, and they’re listed in app stores. As an end user, there’s a good chance you can’t tell the difference between a hybrid mobile app and...

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Use Okta (Instead of Local Storage) to Store Your User's Data Securely

Local Storage is a JavaScript API technically known as localStorage that arrived with HTML5. It allows you to store information on a user’s browser quickly and easily. There are many debates on the web as to whether it’s better than cookies. Some say it’s faster (because it doesn’t send data with every request like cookies do) and more secure. Whether it’s more secure or not is debatable, especially when compared with secure cookies that have...

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Protect Your Cryptocurrency Wealth Tracking PWA with Okta

Cryptocurrencies are all the rage. Over the last year, the value of Bitcoin alone has risen 1,603%, driving more and more people to wonder if they’re missing out on the “next big thing.” Because of the massive influx of money into cryptocurrencies like Bitcoin, Ethereum, Monero, and Ripple — blockchain technology (which is the foundation of all cryptocurrency) has become an area of intense technical study. At its core, blockchain technology does nothing more than...

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Get Started with Spring Security 5.0 and OIDC

Spring Security is a powerful and highly customizable authentication and access-control framework. It is the de-facto standard for securing Spring-based applications. I first encountered Spring Security when it was called Acegi Security in 2005. I had implemented standard Java EE in my open source project, AppFuse. Acegi Security offered a lot more, including remember me and password encryption as standard features. I had managed to get “remember me” working with Java EE, but it wasn’t...

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Bootiful Development with Spring Boot and React

React has been getting a lot of positive press in the last couple years, making it an appealing frontend option for Java developers! Once you learn how it works, it makes a lot of sense and can be fun to develop with. Not only that, but it’s wicked fast! If you’ve been following me, or if you’ve read this blog for a bit, you might remember my Bootiful Development with Spring Boot and Angular tutorial....

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Build a Basic CRUD App with Angular 5.0 and Spring Boot 2.0

Technology moves fast these days. It can be challenging to keep up with the latest trends as well as new releases of your favorite projects. I’m here to help! Spring Boot and Angular are two of my favorite projects, so I figured I’d write y’all a guide to show you how to build and secure a basic app using their latest and greatest releases. In Spring Boot, the most significant change in 2.0 is its...

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Add Authentication to Play Framework with OIDC and Okta

I’ve fallen in love with Play Framework in the past, but then found a more attractive framework in Spring Boot. I fell in love partly because Play was new and sexy at the time, but also because it’s “live reloading” of Java code was a killer feature I’d been looking for. When it added support for Scala in v2.0, I was very excited to learn Scala and discover the power of functional programming. Part of...

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Use OpenID Connect Support with JHipster

Single sign-on (SSO) is a feature that most developers don’t care about when building one-off applications for clients or themselves. However, when developing apps for their company, which will be used by employees of their business, they often need to hook into an existing identity provider. It might be Active Directory (AD), LDAP, or a myriad of other systems. Okta provides SSO for many companies around the world and allows them to configure AD and...

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NoSQL Options for Java Developers, Part II

Last month, I wrote about NoSQL Options for Java Developers. I analyzed the data available from a variety of sources (Indeed jobs, GitHub stars, Stack Overflow tags) to pick the top five options: MongoDB, Redis, Cassandra, Neo4j, and PostgreSQL. After writing this article, I shared it with a few experts I know in the Java and NoSQL communities and asked them the following questions: Do you agree with my choices of the top 5 NoSQL...

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The Top 10 JavaOne 2017 Sessions for the Java Hipster

A “hipster” is defined as a person who is exceptionally aware of or interested in the latest trends and tastes. JHipster is an open source project whose name stands for “Java Hipster.” If you’re using JHipster, chances are you’re aware of and using the latest trends and techniques in Java development. Trendy things in server-side Java development include microservices, embedded app servers, deployment with containers, auto-configuration, and monitoring. JHipster supports all of these trends, embracing...

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Build a Secure Notes Application with Kotlin, TypeScript, and Okta

I love my job as a developer advocate at Okta. I get to learn a lot, write interesting blog posts and create example apps with cool technologies like Kotlin, TypeScript, Spring Boot, and Angular, which I’m about to demo. When it comes to writing Hello World apps with authentication, I can whip one out in a few minutes. That isn’t because I’m a particularly good programmer, it’s because the languages, frameworks, tools, and platforms available...

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The Lazy Developer's Guide to Authentication with Vue.js

I’ll happily admit that like many of you, I’m a lazy developer. I tend to look for solutions someone else has already built before I try to build them myself. In the “old days” of the early 2000s, I used to spend a lot more time coding solutions myself. But today many solutions to coding problems are just a keyword search away. In that spirit, I approached this tutorial using keywords – looking for existing...

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NoSQL Options for Java Developers

The Java community is one I know and love, so even though a NoSQL database is rarely tied to a language I’m writing this article for you, Java developers around the world. In this article, I’ll show you several options for NoSQL databases. After exploring all the options, I’ll narrow the choices down to the top five based on Indeed Jobs, GitHub stars, and Stack Overflow tags. Then I’ll let you know if they’re supported...

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Build an Ionic App with User Authentication

With Okta and OpenID Connect (OIDC) you can easily integrate authentication into an Ionic application, and never have to build it yourself again. OIDC allows you to authenticate directly against the Okta API, and this article shows you how to do just that in an Ionic application. I’ll demo how to log in with OIDC redirect, using Okta’s Auth SDK as well as how to use OAuth with Cordova’s in-app browser; user registration is omitted...

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What is Developer Relations at Okta?

Okta is investing heavily into making developers successful by creating great developer experiences through updated SDKs and integrations as well as new pricing and packaging. These updates are intended to give developers everything they need to build modern, secure applications. But equally important is how Okta speaks to developers. How we engage with the community and build our reputation with a wide range of developers. At the heart of that effort, is our Developer Relations...

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Secure a Spring Microservices Architecture with Spring Security, JWTs, Juiser, and Okta

You’ve built a microservices architecture with Spring Boot and Spring Cloud. You’re happy with the results, and you like how it adds resiliency to your application. You’re also pleased with how it scales and how different teams can deploy microservices independently. But what about security? Are you using Spring Security to lock everything down? Are your microservices locked down too, or are they just behind the firewall? This tutorial shows you how you can use...

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The Ultimate Guide to Progressive Web Applications

Progressive Web Apps, aka PWAs, are the best way for developers to make their webapps load faster and more performant. In a nutshell, PWAs are websites that use recent web standards to allow for installation on a user’s computer or device, and deliver an app-like experience to those users. Twitter recently launched mobile.twitter.com as a PWA built with React and Node.js. They’ve had a good experience with PWAs, showing that the technology is finally ready...

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What the Heck is OAuth?

There’s a lot of confusion around what OAuth actually is. Some people think OAuth is a login flow (like when you sign into an application with Google Login), and some people think of OAuth as a “security thing”, and don’t really know much more than that. I’m going to show you what OAuth is, explain how it works, and hopefully leave you with a sense of how and where OAuth can benefit your application. What...

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Develop and Deploy Microservices with JHipster

JHipster is one of those open-source projects you stumble upon and immediately think, “Of course!” It combines three very successful frameworks in web development: Bootstrap, Angular, and Spring Boot. Bootstrap was one of the first dominant web-component frameworks. Its largest appeal was that it only required a bit of HTML and it worked! Bootstrap showed many in the Java community how to develop components for the web. It leveled the playing field in HTML/CSS development,...

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Build a Microservices Architecture for Microbrews with Spring Boot

Adopting a microservice architecture provides unique opportunities to add failover and resiliency to your systems, so your components can handle load spikes and errors gracefully. Microservices make change less expensive too. It can also be a good idea when you have a large team working on a single product. Your project can likely be broken up into components that can function independently of one another. Once components can function independently, they can be built, tested,...

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Add Authentication to Your Angular PWA

You’re developing a Progressive Web Application (PWA), and your service worker and web app manifest are working swimmingly. You’ve even taken the time to deploy it to a server with HTTPS, and you’re feeling pretty good about things. But wait, you don’t have any way of knowing who your users are! Don’t you want to provide them with an opportunity to authenticate and tell you who they are? Once you know who they are, you...

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Tutorial: Develop a Mobile App With Ionic and Spring Boot

You already know that building APIs with Spring Boot is incredibly easy. But, your API isn’t complete without a UI, right? Well, building UIs with Ionic is pretty easy too, especially if you know Angular! Ionic is an open source framework designed to help you build mobile applications with web technologies. It started out as a framework based on AngularJS. Ionic 3.0 was recently released, with support for Angular 4, TypeScript 2.2, and lazy loading....

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Build Your First Progressive Web Application with Angular and Spring Boot

An October 2016 DoubleClick report found 53% of visits are abandoned if a mobile site takes more than 3 seconds to load. That same report said the average mobile sites load in 19 seconds. According to Alex Russell in his recent talk on the state of mobile development, one of the biggest problems in mobile today is that developers use powerful laptops and desktops to develop their mobile applications, rather than using a $200 device...

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Bootiful Development with Spring Boot and Angular

To simplify development and deployment, you want everything in the same artifact, so you put your Angular app “inside” your Spring Boot app, right? But what if you could create your Angular app as a standalone app and make cross-origin requests to your API? Hey guess what, you can do both! I believe that most frontend developers are used to having their apps standalone and making cross-origin requests to APIs. The beauty of having a...

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Angular Authentication with OpenID Connect and Okta in 20 Minutes

Angular (formerly called Angular 2.0) is quickly becoming one of the most powerful ways to build a modern single-page app. A core strength is Angular’s focus on building reusable components, which help you decouple the various concerns in your application. Take authentication, for example: it can be painful to build, but once you wrap it in a component, the authentication logic can be reused throughout your application. The Angular CLI makes it easy to scaffold...

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Build an Angular App with Okta's Sign-In Widget in 15 Minutes

AngularJS reigned as king of JavaScript MVC frameworks for several years. However, when the Angular team announced they would not provide backwards compatibility for their next version, there was a bit of a stir in its community, giving opportunities for frameworks like React and Vue.js to flourish. Fast forward a few years and both Angular 2 and Angular 4 have been released. Many developers are trying its TypeScript and finding the experience a pleasant one....

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Get Started with Spring Boot, OAuth 2.0, and Okta

If you’re building a Spring Boot application, you’ll eventually need to add user authentication. You can do this with OAuth 2.0 (henceforth: OAuth). OAuth is a standard that applications can use to provide client applications with “secure delegated access”. It works over HTTP and authorizes devices, APIs, servers, and applications with access tokens rather than credentials. Very simply, OAuth is a protocol that supports authorization workflows. It gives you a way to ensure that a...

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Get Started with Spring Boot, SAML, and Okta

Today I’d like to show you how build a Spring Boot application that leverages Okta’s Platform API for authentication via SAML. SAML (Security Assertion Markup Language) is an XML-based standard for securely exchanging authentication and authorization information between entities—specifically between identity providers, service providers, and users. Well-known IdPs include Salesforce, Okta, OneLogin, and Shibboleth. My Okta developer experience began a couple years ago (in December 2014) when I worked for a client that was adopting...

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