Download Attachemnt using Name

download_using_name.kt

@GetMapping(value = ["downloadFileByName"], produces = [APPLICATION_JSON_VALUE])
fun downloadFileByName(@RequestParam name:String):ResponseEntity<Resource>{
val attachmentIds: List<AttachmentId> = proxy.queryAttachments(
AttachmentQueryCriteria.AttachmentsQueryCriteria(filenameCondition =
Builder.equal(name)),
null
)
val inputStreams = attachmentIds.map { proxy.openAttachment(it) }
val zipToReturn = inputStreams.single()
return ResponseEntity.ok().header(
HttpHeaders.CONTENT_DISPOSITION,
"attachment; filename=\"$name.zip\""
).body(InputStreamResource(zipToReturn))
}