find the last record from mongo db code example
Example: get the last N records in mongodb
In order to get last N records you can execute below query:
db.yourcollectionname.find({$query: {}, $orderby: {$natural : -1}}).limit(yournumber)
if you want only one last record:
db.yourcollectionname.findOne({$query: {}, $orderby: {$natural : -1}})