const uid = _req.getString('uid','');

if (uid == '') {
  _out.json(
    _val.map()
      .set("error",true)
      .set("message", "UID is invalid!")
  )
  _exec.stop();
}

_db.execute("DELETE FROM cliente WHERE uid = ?::UUID",
  _val.init()
    .add(_req.getUUID('uid'))
)

_out.json(
  _val.map()
    .set("result", true)
    .set("uid", uid)
)