In this post, you’ll learn about microservices architecture and how to implement it using Spring Boot. After creating some projects with the technique, you will deploy the artifacts as Docker containers and will simulate a container orchestrator (such as Kubernetes) using Docker Compose for simplification. The icing on the cake will be authentication integration using Spring Profiles; you will see how to enable it with a production profile. But first, let’s talk about microservices. Note:...

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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. In this tutorial, you are going to learn more about PostgreSQL and how to integrate it with a Spring Boot application. You will learn...

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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. Java developers typically encounter the need to store data on a regular basis. If you’ve been developing for more than 15 years, you probably...

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“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...

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