How to rename a user in MongoDB?

Question

There is a user in database, this user should be renamed. How to rename the user? The MongoDB user management reference has method db.updateUser but I don't see how to set a new name for the user. How to update the username? ty

db.updateUser(
   "<username>",
   {
     customData : { <any information> },
     roles : [
               { role: "<role>", db: "<database>" } | "<role>",
               ...
             ],
     pwd: "<cleartext password>"
    },
    writeConcern: { <write concern> }
)

Answer 1

Did you try to update the user?

db.system.users.update({"user":"oldname"}, {$set:{"user":"newname"}})

This command requires root access to admin database.