scala libraryDependencies += "org.yaml" % "snakeyaml" % "1.27" scala import org.yaml.snakeyaml.Yaml import java.io.InputStream case class Person(name: String, age: Int) object Main extends App { val yaml: Yaml = new Yaml() val inputStream: InputStream = getClass.getResourceAsStream("/data.yaml") val data: Map[String, Any] = yaml.load(inputStream).asInstanceOf[java.util.LinkedHashMap[String, Any]] val person: Person = Person(data.get("name").asInstanceOf[String], data.get("age").asInstanceOf[Int]) println(person) } scala import org.yaml.snakeyaml.DumperOptions import org.yaml.snakeyaml.Yaml import java.io.FileWriter case class Person(name: String, age: Int) object Main extends App { val person: Person = Person("John Doe", 30) val options: DumperOptions = new DumperOptions() options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK) val yaml: Yaml = new Yaml(options) val writer: FileWriter = new FileWriter("output.yaml") yaml.dump(person, writer) writer.close() }