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Spring Boot Pkl Example
- Pkl is a configuration-as-code language developed by Apple, combining static formats like JSON with programming language features for enhanced configuration management.
- It introduces classes, functions, and type annotations for scalability and safety in complex configurations.
- Pkl aims to address issues of repetition, maintainability, and lack of validation in traditional configuration formats.
- Key features of Pkl include declarative syntax, programming constructs, rich validation, scalability, safety, versatile output, embeddability, and IDE integration.
- In Spring Boot, adding dependencies like 'spring-boot-starter-web' and 'pkl-spring-boot-starter' enables Pkl integration.
- Create a Pkl schema defining the application's configuration structure, including classes like 'Server' and 'Endpoint'.
- Define the application's configuration values in a Pkl file, setting up endpoints with specified names and port numbers.
- Use the Pkl Gradle plugin to generate Java classes from the Pkl schema automatically.
- Inject the generated AppConfig into Spring Boot components to access and utilize the configuration.
- Expose the Pkl configuration via a Spring REST controller to provide access to the server's configured endpoints through a RESTful API.
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