db.getUser()

Definition

db.getUser(username, args)

Returns user information for a specified user. Run this method on the user's database. If the user doesn't exist in the database, db.getUser() returns null.

The db.getUser() method has the following parameters:

db.getUser( "<username>", {
   showCredentials: <Boolean>,
   showPrivileges: <Boolean>,
   showAuthenticationRestrictions: <Boolean>,
   filter: <document>
} )

Parameter	Type	Description
username	string	The name of the user for which to retrieve information.
args	document	Optional. A document specifying additional arguments.

The args document supports the following fields:

Field	Type	Description
showCredentials	boolean	Optional. Set the field to true to display the user's password hash. By default, this field is false.
showPrivileges	boolean	Optional. Set the field to true to show the user's full set of privileges, including expanded information for the inherited roles. By default, this field is false. If viewing all users, you cannot specify this field.
showAuthenticationRestrictions	boolean	Optional. Set the field to true to show the user's authentication restrictions. By default, this field is false. If viewing all users, you cannot specify this field.
filter	document	Optional. A document that specifies $match stage conditions to return information for users that match the filter conditions.

db.getUser() wraps the usersInfo: <username> command.

For details on output, see usersInfo.

Compatibility

This method is available in deployments hosted in the following environments:

• MongoDB Enterprise: The subscription-based, self-managed version of MongoDB

• MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB

Required Access

To view another user's information, you must have the viewUser action on the other user's database.

Users can view their own information.

Example

The following operations return information about an example appClient user in an accounts database:

use accounts
db.getUser("appClient")

Example output:

{
   _id: 'accounts.appClient',
   userId: UUID("1c2fc1bf-c4dc-4a22-8b04-3971349ce0dc"),
   user: 'appClient',
   db: 'accounts',
   roles: [],
   mechanisms: [ 'SCRAM-SHA-1', 'SCRAM-SHA-256' ]
}