An example of how to use MultipartFormDataWriteable

MultipartFormDataWriteableExample.scala

import play.api.libs.ws.WS
import play.api.mvc.MultipartFormData.FilePart
import play.api.mvc.MultipartFormData
import utilities.MultipartFormDataWriteable._

...

val url = "https://example.com"

val dataParts = Map(
    "foo" -> Seq("bar"),
    "alice" -> Seq("bob")
)

val file = new jave.io.File(... path to a jpg ...)
val fileParts = Seq(new FilePart("attachment", "foo.jpg", Some("image/jpeg"), file)

val multipartFormData = MultipartFormData(dataParts, fileParts, Seq(), Seq())

WS.url(url).post(multipartFormData)

what is

import utilities.MultipartFormDataWriteable._

the old ning methods don't work and yours seems promising on 2.4.x

I found it http://cdmckay.org/blog/2015/06/24/how-to-add-support-for-posting-multipart-forms-to-the-play-scala-ws-library/

but it still doesnt work in play2.4 x :(