kotlin-spring-configuration-properties-best-practices

KotlinExampleConfigurationPropertiesConfig.kt

@Configuration
@EnableConfigurationProperties(ExampleParentProperties::class)
class ExampleConfiguration {}


@ConstructorBinding
@ConfigurationProperties(prefix = "io.github.artemptushkin.example")
data class ExampleParentProperties(
    val child: ChildProperties = ChildProperties() 
)

data class ChildProperties(
    val defaultedStringProperty: String = "default",
    val defaultOverriddenProperty: String = "default",
    val requiredStringProperty: String,
    val optionalStringProperty: String? = null,
    val notNullListProperty: List<String> = emptyList()
)