Micronaut @ConfigurationProperties Example

Date: 2025-04-25

Micronaut's @ConfigurationBuilder annotation simplifies mapping configuration properties (from YAML or properties files) to builder-style Java classes. This avoids boilerplate code when populating classes, especially third-party ones. It leverages compile-time processing for efficiency and type safety, integrating seamlessly with Micronaut's @ConfigurationProperties. The article details a practical example using YAML configuration, a custom builder class, and JUnit 5 testing to demonstrate the process. This approach improves code readability and maintainability when handling structured configurations in Micronaut applications.

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