User.find({ _id: req.body.userId }, (err, user) => {
  User.find({ username: decodedUser.username }, (err, member) => {
   console.log("usern", user)
   console.log("membern", member)
 })
})

User.find({ $or:
  [
    { _id: req.body.userId },
    { username: decodedUser.username}
  ]}, (err, results) => {
  console.log("resultsn", results)
})