Answers for "mongodb rename databas"

mongodb rename field

db.products.updateMany({}, {
  $rename: { "foo": "bar" }
})

mongodb rename database

# Dump db to a local folder
mongodump mongodb://user:pwd@localhost/old_name -o ./dump 

# Restore the db with the new name
mongorestore mongodb://user:pwd@localhost -d new_name ./dump/old_name

# Then run these commands in your mongodb shell
use old_name
db.dropDatabase()