CODEWITHSUNDEEP
scalafile-uploadplayframework
Alex Irabor
Alex Irabor

Reputation: 401

How to carry out fileupload in play(Scala)

I am trying to write a simple file upload application, that would upload a file to a server, but when I run the code, a get a type mismatch error. I got the code from the play framework documentation, click here The error occurs around here: 

picture.ref.moveTo(Paths.get(s"/tmp/picture/$filename"), replace = true)

The error around there says something like this:

Type mismatch, expected: File, actual: Path

My full code is below

def uploader = Action(parse.multipartFormData) { implicit request =>
    request.body.file("picture").map { picture =>
      val filename = Paths.get(picture.filename).getFileName
      picture.ref.moveTo(Paths.get(s"/tmp/picture/$filename"), replace = true)
      Ok("File uploaded")
    }.getOrElse {
      Redirect(routes.FileUploadController.index).flashing(
        "error" -> "Missing file")
    }
  }

Upvotes: 0

Views: 1069

Answers (1)

user6860682
user6860682

Reputation:

Try something like this:

 import java.io.File
 import java.nio.file.attribute.PosixFilePermission._

 //If you need authenticating, simply use silhouette for ACL, otherwise replace this line
 def uploadPhoto = silhouette.SecuredAction.async(parse.multipartFormData) { implicit request =>
    Future {
      request.body
        .file("photo")
        .map { photo =>

          val fileName = UUID.randomUUID.toString
          val pathToStorage = "default"
          val file = new File(s"$pathToStorage/$fileName.jpg")
          photo.ref.moveTo(file)
          val attr = util.EnumSet.of(OWNER_READ, OTHERS_READ, GROUP_READ)
          Files.setPosixFilePermissions(file.toPath, attr)
          Ok(s"$fileName.jpg")
        }
        .getOrElse {
          BadRequest("Missing file")
        }
    }
  }

If you want to simply upload a file from disk, just replace file variable to the next line:

val file = Paths.get(s"/path/to/picture.jpg").toFile

Also, it's a good practice to specify file parameters for read/write/execute modes, I've provided the example with permissions above.

Upvotes: 1

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