multipart akka http scala request formdata file client

MultipartFormData.scala

import java.nio.file.{Path, Paths}
import akka.stream.scaladsl.Source

val foo: Path = Paths.get("/images/foo.jpg")
val bar: Path = Paths.get("/images/bar.png")

val data = Multipart.FormData {
  Source {
    List (
      Multipart.FormData.BodyPart.fromPath("foo", ContentTypes.`application/octet-stream`, foo),
      Multipart.FormData.BodyPart.fromPath("bar", ContentTypes.`application/octet-stream`, bar)
    )
  }
}

//or

data = Multipart.FormData(
  Multipart.FormData.BodyPart.fromPath("foo", ContentTypes.`application/octet-stream`, foo)
)

entity:HttpEntity = data.toEntity()

Post(uri = s"/images/").withEntity(entity)