Kotlin DSL by Example

Summary One of the more interesting features of Kotlin is the ability to create your own DSL (domain-specific-language). There are many use cases for this: UI elements: Jetpack compose, kotlinx.html… Configurations: Ktor configuration Builder pattern: In fact, anywhere we can use the builder pattern, we can build a DSL around it. This way we can provide a clear and expressive syntax while tucking away validation/transformation/etc logic. An Example Let’s say we wanted to build a structure to represent our CI pipeline, because maybe we want to generate our CI pipeline configuration dynamically. We also want to use a builder and do some validation on the values that the user can provide for this structure. Read more