Spring Boot Tips: Easiest Way To Provide Environment Variables
Spring Boot has excellent support for externalized configuration. You can supply configuration through properties files, YAML files, environment …
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Spring Boot
Don't Pollute Your Spring Boot Main EntryPoint Class
Most Spring Boot applications start with a beautifully boring main class. Then one day we need caching. We add @EnableCaching. Then we need async …
A Few Hard Learned Lessons On Structuring Spring Boot Applications
One of the most common questions developers ask when starting a Spring Boot project is: How should I structure my code? If you spend enough time in …
The Power of Value Objects
A Value Object is a domain concept defined by its values rather than by identity. For example, we can represent EventId, EventCode or Email as a value …
Spring Boot + Testcontainers Tests at Jet Speed
Spring Boot 3.1.0 introduced support for Testcontainers to simplify local development and testing. Testcontainers helps in writing tests using real …
Running your own Spring Initializr and using it from IntelliJ IDEA
If you ever worked with Spring Boot, then you are probably aware of Spring Initializr. The Spring Initializr is a web application that you can use to …
Mastering Spring Boot in 5 Stages
Spring Boot is the most popular framework in the Java world to build enterprise applications. Also, Spring Boot is the most sought-after skill to get …
Thymeleaf Layouts using Fragment Expressions in Spring Boot GraalVM Native Image
Typically, in Spring Boot + Thymeleaf applications, we use thymeleaf-layout-dialect to define the common layout of the web pages and it works fine. …
Spring Security OAuth 2 Tutorial - 10 : Service to Service Communication using Client Credentials Flow
In this tutorial, we will explore how to implement Service to Service Communication using Client Credentials Flow.
Spring Security OAuth 2 Tutorial - 9 : Invoking Secured Resource Server APIs from Client Application
In this tutorial, we will explore how to invoke the secured Resource Server API endpoints from the Client application.
Spring Security OAuth 2 Tutorial - 8 : Securing Resource Server
In this tutorial, we will create a Spring Boot Resource Server and secure it with Spring Security OAuth 2.0 using Keycloak.
Spring Security OAuth 2 Tutorial - 7 : Securing Spring MVC Client Application
In this tutorial, we will create a Spring MVC + Thymeleaf web application and secure it with Spring Security OAuth 2.0 using Keycloak.