Create a zip file using remote sources (S3) and then download that zip file in Scala

create_zip.scala

import java.io.{File}
import java.util.zip.{ZipEntry, ZipOutputStream}

val zipFilePath = "/tmp/allLogs.zip"
val zip = new ZipOutputStream(new FileOutputStream(zipFilePath))

for (log <- logs) {
  val link = file.link.get
  val fileName = link.substring(link.lastIndexOf('/') + 1, link.lastIndexOf(".zip") + 4) // getting file name and removing the AWS params from the link
  val source = scala.io.Source.fromURL(link, "ISO-8859-1") // this is because I am zipping binary files, if your encoding is different please pass likewise
  zip.putNextEntry(new ZipEntry(fileName))
  zip.write(source.map(_.toByte).toArray)
  source.close()
  zip.closeEntry()
}
zip.close()

Ok.sendFile(content= new File(zipFilePath))