Practical writing on Java, Spring, AI, and the craft of software engineering.
If you're building with Java and Spring (or trying to figure out where AI fits into your development workflow) you're in the right place. I write practical, beginner-friendly deep dives on Spring Boot, Spring AI, and software engineering fundamentals, collected here in chronological order.
Filtering by tag: graphql
Spring Boot/
GraphQL for Java Developers with Spring Boot
Build GraphQL APIs in Java with Spring Boot 4 and Spring for GraphQL. A free course covering schema-first design, batch loading, unions, and AOT repositories.

Evolving your API without Versioning in GraphQL
Explore modern approaches to API versioning in GraphQL, including schema evolution strategies, deprecation patterns, and best practices for maintaining backward compatibility while evolving your API.
Building Dynamic GraphQL APIs with Spring Boot and Query by Example
Learn how to build flexible and maintainable GraphQL APIs using Spring Boot's Query by Example support, reducing boilerplate code while enabling powerful search capabilities.

Spring for GraphQL Schema Mapping Inspection Report
Join VMware's Spring Developer Advocate, Dan Vega, as he explores the exciting new releases in Spring for GraphQL. Dive into the enhanced features of the inspection report, walk through how to create a project, and more!
Create a GraphQL Client in Java with Spring Boot
If you're working on a Spring application and you need to call another REST API, you have tools such as RestTemplate or WebClient. But what if you need to call a GraphQL API? With Spring, a GraphQL Client is available. In this tutorial, you will learn how to include it...

Project Loom Virtual Threads in Spring (JDK 19/20 Preview)
Project Loom virtual threads explained for Spring developers: why thread-per-request breaks under load, and how to enable them in Spring on JDK 19/20 preview.

Working with GraphQL Mutations in Spring Boot
In this blog post, we'll be taking a look at mutations in GraphQL, specifically using Spring Boot, GraphQL Java, and Spring Data JPA.
GraphQL Scalars - How to use Custom Scalars in Java
Learn how to use GraphQL custom scalars in Java. We build a Spring Boot 3 app with Spring for GraphQL and register the BigDecimal and LocalDateTime scalars.
GraphQL Spring Boot - Up and Running with Spring for GraphQL
In this tutorial you are going to learn how to get up and running with Spring for GraphQL.
