revokePrivilegesFromRole

Definition

revokePrivilegesFromRole

Removes the specified privileges from the user-defined role on the database where the command is run. The revokePrivilegesFromRole command has the following syntax:

Tip

In the mongo Shell, this command can also be run through the db.revokePrivilegesFromRole() 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.

{
  revokePrivilegesFromRole: "<role>",
  privileges:
      [
        { resource: { <resource> }, actions: [ "<action>", ... ] },
        ...
      ],
  writeConcern: <write concern document>,
  comment: <any>
}

The revokePrivilegesFromRole command has the following fields:

Field	Type	Description
revokePrivilegesFromRole	string	The user-defined role to revoke privileges from.
privileges	array	An array of privileges to remove from the role. See privileges for more information on the format of the privileges.
writeConcern	document	Optional. The level of write concern for the modification. The writeConcern document takes the same fields as the getLastError command.
comment	any	Optional. 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 the command.comment field. A comment can be any valid BSON type (string, integer, object, array, etc). New in version 4.4.

Behavior

To revoke a privilege, the resource document pattern must match exactly the resource field of that privilege. The actions field can be a subset or match exactly.

For example, consider the role accountRole in the products database with the following privilege that specifies the products database as the resource:

{
  "resource" : {
      "db" : "products",
      "collection" : ""
  },
  "actions" : [
      "find",
      "update"
  ]
}

You cannot revoke find and/or update from just one collection in the products database. The following operations result in no change to the role:

use products
db.runCommand(
    {
      revokePrivilegesFromRole: "accountRole",
      privileges:
        [
          {
            resource : {
                db : "products",
                collection : "gadgets"
            },
            actions : [
                "find",
                "update"
            ]
          }
        ]
    }
)
db.runCommand(
    {
      revokePrivilegesFromRole: "accountRole",
      privileges:
        [
          {
            resource : {
                db : "products",
                collection : "gadgets"
            },
            actions : [
                "find"
            ]
          }
        ]
    }
)

To revoke the "find" and/or the "update" action from the role accountRole, you must match the resource document exactly. For example, the following operation revokes just the "find" action from the existing privilege.

use products
db.runCommand(
    {
      revokePrivilegesFromRole: "accountRole",
      privileges:
        [
          {
            resource : {
                db : "products",
                collection : ""
            },
            actions : [
                "find"
            ]
          }
        ]
    }
)

Required Access

You must have the revokeRole action on the database a privilege targets in order to revoke that privilege. If the privilege targets multiple databases or the cluster resource, you must have the revokeRole action on the admin database.

Example

The following operation removes multiple privileges from the associates role in the products database:

use products
db.runCommand(
   {
     revokePrivilegesFromRole: "associate",
     privileges:
      [
        {
          resource: { db: "products", collection: "" },
          actions: [ "createCollection", "createIndex", "find" ]
        },
        {
          resource: { db: "products", collection: "orders" },
          actions: [ "insert" ]
        }
      ],
     writeConcern: { w: "majority" }
   }
)