Summary. I explore the versatility of Spring Boot by building everything from REST APIs and GraphQL endpoints to full-stack web applications. I also cover essential features like Spring Security, data persistence with Spring Data JPA, and automated deployment workflows.

What the posts say

The @RestController annotation ensures that methods return data instead of web pages.

“A: It marks the class as a controller whose methods return data, not web pages.” — Java Spring Boot (Part 1)

Spring Data JPA reduces the amount of boilerplate code needed for data access.

“I created a Spring Boot application using Spring Data JPA, which provides high-level, repository-style interfaces for data access and reduces boilerplate code.” — Java Spring Boot (Part 3)

The application never sees the user's GitHub password when using OAuth2.

“The application sends the browser to GitHub, the user signs in there, and GitHub sends the browser back with proof, so my application never sees the GitHub password.” — Java Spring Boot (Part 6)

The schema acts as the contract between the client and the server in a GraphQL API.

“A: The contract between the client and the server.” — Java Spring Boot (Part 5)

Thymeleaf fills HTML placeholders with model data before the browser renders the page.

“I write an HTML page with placeholders, and Thymeleaf fills them in with the model data before the browser sees the page.” — Java Spring Boot (Part 4)

The H2 database stores data in memory so that changes are lost when the application stops.

“The H2 database is in memory, so my changes are lost when the application stops.” — Java Spring Boot (Part 5)

A push to GitHub updates the live site without a manual upload.

“A push to GitHub was enough to update the live website, with no manual upload.” — Java Spring Boot (Part 2)

Azure Spring Apps is a managed service that handles the underlying Kubernetes infrastructure.

“It is fully managed, and it runs on Kubernetes. Each service instance has two dedicated Kubernetes clusters that Azure Spring Apps manages and hides from me.” — Java Spring Boot (Part 7)