grantRolesToRole
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Definition
grantRolesToRole
Grants roles to a user-defined role.
Tip
In the
mongo
Shell, this command can also be run through thedb.grantRolesToRole()
helper method.Helper methods are convenient for
mongo
users, but they may not return the same level of information as database commands. In cases where the convenience is not needed or the additional return fields are required, use the database command.The
grantRolesToRole
command affects roles on the database where the command runs.grantRolesToRole
has the following syntax:{ grantRolesToRole: "<role>", roles: [ { role: "<role>", db: "<database>" }, ... ], writeConcern: { <write concern> }, comment: <any> } The
grantRolesToRole
command has the following fields:FieldTypeDescriptiongrantRolesToRole
stringThe name of a role to add subsidiary roles.roles
arrayAn array of roles from which to inherit.writeConcern
documentOptional. The level of write concern for the modification. ThewriteConcern
document takes the same fields as thegetLastError
command.comment
anyOptional. A user-provided comment to attach to this command. Once set, this comment appears alongside records of this command in the following locations:
mongod log messages, in the
attr.command.cursor.comment
field.Database profiler output, in the
command.comment
field.currentOp
output, in thecommand.comment
field.
A comment can be any valid BSON type (string, integer, object, array, etc).
New in version 4.4.
In the
roles
field, you can specify both built-in roles and user-defined roles.To specify a role that exists in the same database where
grantRolesToRole
runs, you can either specify the role with the name of the role:"readWrite" Or you can specify the role with a document, as in:
{ role: "<role>", db: "<database>" } To specify a role that exists in a different database, specify the role with a document.
Behavior
A role can inherit privileges from other roles in its database. A role
created on the admin
database can inherit privileges from roles in
any database.
Required Access
You must have the grantRole
action on a database to grant a role on that database.
Example
The following grantRolesToRole
command updates the
productsReaderWriter
role in the products
database to inherit the privileges of the productsReader
role in the products
database:
use products db.runCommand( { grantRolesToRole: "productsReaderWriter", roles: [ "productsReader" ], writeConcern: { w: "majority" , wtimeout: 5000 } } )