How to use GraphQL in a Spring Boot app

Spring Boot, a sub-project of the popular Java Spring framework, offers built-in support for GraphQL, enabling developers to easily build and test GraphQL APIs. As part of the Spring ecosystem, it allows the use of familiar tools like Spring Data and Spring Security, simplifying the development process with minimal configuration. GraphQL, a query language for APIs, offers advantages over REST APIs, such as efficient data fetching, type safety, and self-documentation. The tutorial demonstrates creating a Spring Boot application with a GraphQL API, defining a schema using the GraphQL Schema Definition Language (SDL), and mocking data in memory with Movie and Actor entities. Queries and mutations are exposed through controllers, and automated testing is conducted to ensure functionality. The GraphQL playground can be used for development testing, while tools like LogRocket can monitor production performance. The full application code is available on GitHub.