PostController.scala

packagev1.post

importjavax.inject.Inject

importplay.api.Logger
importplay.api.data.Form
importplay.api.libs.json.Json
importplay.api.mvc._

importscala.concurrent.{ExecutionContext, Future}

caseclassPostFormInput(title: String, body: String)
objectPostFormInput {
defunapply(postFormInput: PostFormInput):Option[(String, String)] = {
Some((postFormInput.title, postFormInput.body))
 }
}

/**
 * Takes HTTP requests and produces JSON.
*/
classPostController@Inject()(cc: PostControllerComponents)(
implicitec: ExecutionContext)
extendsPostBaseController(cc) {

privatevallogger=Logger(getClass)

privatevalform:Form[PostFormInput] = {
importplay.api.data.Forms._

Form(
 mapping(
"title"-> nonEmptyText,
"body"-> text
 )(PostFormInput.apply)(PostFormInput.unapply)
 )
 }

defindex:Action[AnyContent] =PostAction.async { implicit request =>
 logger.trace("index: ")
 postResourceHandler.find.map { posts =>
Ok(Json.toJson(posts))
 }
 }

defprocess:Action[AnyContent] =PostAction.async { implicit request =>
 logger.trace("process: ")
 processJsonPost()
 }

defshow(id: String):Action[AnyContent] =PostAction.async {
implicit request =>
 logger.trace(s"show: id = $id")
 postResourceHandler.lookup(id).map { post =>
Ok(Json.toJson(post))
 }
 }

privatedefprocessJsonPost[A]()(
implicitrequest: PostRequest[A]):Future[Result] = {
deffailure(badForm: Form[PostFormInput]) = {
Future.successful(BadRequest(badForm.errorsAsJson))
 }

defsuccess(input: PostFormInput) = {
 postResourceHandler.create(input).map { post =>
Created(Json.toJson(post)).withHeaders(LOCATION-> post.link)
 }
 }

 form.bindFromRequest().fold(failure, success)
 }
}