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connect(url, user, password)

Creates a connection to a MongoDB instance and returns the reference to the database. However, in most cases, use the Mongo() object and its getDB() method instead.

Parameter Type Description
url string

Specifies the connection string. You can specify either:

  • <hostname>:<port>/<database>
  • <hostname>/<database>
  • <database>
user string Optional. Specifies an existing username with access privileges for this database. If user is specified, you must include the password parameter as well.
password string Optional unless the user parameter is specified. Specifies the password for the user.


The following example instantiates a new connection to the MongoDB instance running on the localhost interface and returns a reference to myDatabase:

db = connect("localhost:27017/myDatabase")