Simple POST definition in Swagger

ExampleServlet.scala

class ExampleServlet(val swagger: Swagger) extends ScalatraServlet 
with ExampleServletSwaggerDefinition with JacksonJsonSupport with JValueResult {
// ...
post("/", operation(addItemOperation)) {
    val newItemRequest = parsedBody.extract[NewItemRequest]
    ExampleItemDetails("new-item-id", newItemRequest.name, "product", Owner(1, "Owner name", true), new Date())
  }
// ...
}
trait ExampleServletSwaggerDefinition extends SwaggerSupport {
// ... 
val addItemOperation = apiOperation[ExampleItemDetails]("addNewItem")
    .parameter(bodyParam[NewItemRequest]("newItem").description("New item definition").required)
    .summary("Creates a new item and returns its details")
// ...
}