Design and Develop an Android App with React Native and Publish to Google Play Store
As mobile app usage is expected to continue to grow, now is as good a time as any to get into the market. Android is by far the most popular OS worldwide and the dominant way to get Android apps to phone users is the Google Play Store. In this tutorial, you’ll build a React Native app and I’ll walk you through everything from how to pick a design, as well as setting up your...
Build a Basic Website with ASP.NET MVC and Angular
ASP.NET has been around for a long time. When Microsoft introduced ASP.NET MVC, it changed the way many developers approach their codebase. There is an excellent separation of concerns, a TDD friendly framework, and easy integration with JavaScript while maintaining full control over rendered HTML. On the client side, a lot of .NET developers prefer Angular because it comes with TypeScript and it’s a much closer language to C# than plain JavaScript. Angular is an...
Build a Simple CRUD App with Python, Flask, and React
Note: In May 2025, the Okta Integrator Free Plan replaced Okta Developer Edition Accounts, and the Okta CLI was deprecated. We preserved this post for reference, but the instructions no longer work exactly as written. Replace the Okta CLI commands by manually configuring Okta following the instructions in our Developer Documentation. Today’s modern web applications are often built with a server-side language serving data via an API and a front-end javascript framework that presents the...
Learn JavaScript in 2019
There’s never been a better time to be a programmer. Technology isn’t slowing down. Neither will the demand for innovative solutions to solve new challenges or take advantage of new opportunities. The key differentiation in the marketplace is often the one with the better technology. And companies are willing to pay big bucks for it. Not only are there new challenges and opportunities, but there are also better systems today to support programmers. Languages, code...
Create a Secure Spring REST API
“If it is useful, it will be modified.” Those words of wisdom came from a QA teacher of mine, to explain that all software evolves when it becomes useful to someone, and for as long as it is useful. We all know this. Users ask us for new features, bug fixes and changes in domain logic every day. As any project (especially a monolith) grows it can begin to become difficult to maintain, and the...
OAuth 2.0 for Native and Mobile Apps
These days, when you hear someone talking about OAuth, it is likely they mean OAuth 2.0. Previous versions of the standard are deprecated. OAuth is an authorization framework that enables you to work with external systems in a secure way using digital identifiers called tokens. One type of token is called an access token. Its function is to allow you to exercise APIs securely. The API service can use the access token to determine if...
Build a Basic App with Spring Boot and JPA using PostgreSQL
Every non-trivial application needs a way to save and update data: a resource server that is accessible via HTTP. Generally, this data must be secured. Java is a great language with decades of history in professional, enterprise development, and is a great choice for any application’s server stack. Within the Java ecosystem, Spring makes building secure resource servers for your data simple. When coupled with Okta, you get professionally maintained OAuth and JWT technologies easily...
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...
Navigating the ASP.NET Core Identity Landscape
These days, users of web application expect a personalized, secure experience. They want to make sure that they can easily get to their own information, and that no one else can access it. Developers of these web applications want a simple way to manage users and be assured that they have secured their users’ information from prying eyes. For developers of web applications written in ASP.NET Core, there are several choices for managing user identities....
Build a Basic CRUD App with Laravel and React
Laravel is an amazing web application framework which regularly tops the lists of best PHP frameworks available today. This is partly because its based on PHP which runs 80% of the web today and the learning curve is relatively small (despite it being packed with advanced features, you can understand the basic concepts easily). However, the real reason for its popularity is its robust ecosystem and abundance of high-quality learning resources available for free (like...