db.updateUser()

Definition

db.updateUser( username, update, writeConcern )

Updates the user's profile on the database on which you run the method. An update to a field completely replaces the previous field's values. This includes updates to the user's roles array.

Warning

When you update the roles array, you completely replace the previous array's values. To add or remove roles without replacing all the user's existing roles, use the db.grantRolesToUser() or db.revokeRolesFromUser() methods.

The db.updateUser() method uses the following syntax:

Tip

You can use the passwordPrompt() method in conjunction with various user authentication/management methods/commands to prompt for the password instead of specifying the password directly in the method/command call. However, you can still specify the password directly as you would with earlier versions of the mongo shell.

db.updateUser(
   "<username>",
   {
     customData : { <any information> },
     roles : [
       { role: "<role>", db: "<database>" } | "<role>",
       ...
     ],
     pwd: passwordPrompt(),      // Or  "<cleartext password>"
     authenticationRestrictions: [
        {
          clientSource: ["<IP>" | "<CIDR range>", ...],
          serverAddress: ["<IP>", | "<CIDR range>", ...]
        },
        ...
     ],
     mechanisms: [ "<SCRAM-SHA-1|SCRAM-SHA-256>", ... ],
     passwordDigestor: "<server|client>"
   },
   writeConcern: { <write concern> }
)

The db.updateUser() method has the following arguments.

Parameter	Type	Description
username	string	The name of the user to update.
update	document	A document containing the replacement data for the user. This data completely replaces the corresponding data for the user.
writeConcern	document	Optional. The level of write concern for the operation. See Write Concern Specification.

The update document specifies the fields to update and their new values. All fields in the update document are optional, but must include at least one field.

The update document has the following fields:

Field	Type	Description
customData	document	Optional. Any arbitrary information.
roles	array	Optional. The roles granted to the user. An update to the roles array overrides the previous array's values.
pwd	string	Optional. The user's password. The value can be either: the user's password in cleartext string, or passwordPrompt() to prompt for the user's password. You can use the passwordPrompt() method in conjunction with various user authentication/management methods/commands to prompt for the password instead of specifying the password directly in the method/command call. However, you can still specify the password directly as you would with earlier versions of the mongo shell.
authenticationRestrictions	array	Optional. The authentication restrictions the server enforces upon the user. Specifies a list of IP addresses and CIDR ranges from which the user is allowed to connect to the server or from which the server can accept users. New in version 3.6.
mechanisms	array	Optional. The specific SCRAM mechanism or mechanisms for the user credentials. If authenticationMechanisms is specified, you can only specify a subset of the authenticationMechanisms. If updating the mechanisms field without the password, you can only specify a subset of the user's current mechanisms, and only the existing user credentials for the specified mechanism or mechanisms are retained. If updating the password along with the mechanisms, new set of credentials are stored for the user. Valid values are: "SCRAM-SHA-1" Uses the SHA-1 hashing function. "SCRAM-SHA-256" Uses the SHA-256 hashing function. Requires featureCompatibilityVersion set to 4.0. Requires passwordDigestor to be server.
passwordDigestor	string	Optional. Indicates whether the server or the client digests the password. Available values are: "server" (Default) The server receives undigested password from the client and digests the password. "client" (Not compatible with SCRAM-SHA-256) The client digests the password and passes the digested password to the server.

"readWrite"

{ role: "<role>", db: "<database>" }

Behavior

Required Access

You must have access that includes the revokeRole action on all databases in order to update a user's roles array.

You must have the grantRole action on a role's database to add a role to a user.

To change another user's pwd or customData field, you must have the changePassword and changeCustomData actions respectively on that user's database.

To modify your own password and custom data, you must have privileges that grant changeOwnPassword and changeOwnCustomData actions respectively on the user's database.

Example

Given a user appClient01 in the products database with the following user info:

{
   _id : "products.appClient01",
   userId : UUID("c5d88855-3f1e-46cb-9c8b-269bef957986"),
   user : "appClient01",
   db : "products",
   customData : { empID : "12345", badge : "9156" },
   roles : [
       {
         role : "readWrite",
         db : "products"
       },
       {
         role : "read",
         db : "inventory"
       }
   ],
   mechanisms : [
      "SCRAM-SHA-1",
      "SCRAM-SHA-256"
   ],
   authenticationRestrictions : [ {
      clientSource: ["69.89.31.226"],
      serverAddress: ["172.16.254.1"]
   } ]
}

The following db.updateUser() method completely replaces the user's customData and roles data:

use products
db.updateUser( "appClient01",
{
   customData : { employeeId : "0x3039" },
   roles : [
      { role : "read", db : "assets"  }
   ]
} )

The user appClient01 in the products database now has the following user information:

{
   _id : "products.appClient01",
   userId : UUID("c5d88855-3f1e-46cb-9c8b-269bef957986"),
   user : "appClient01",
   db : "products",
   customData : { employeeId : "0x3039" },
   roles : [
       {
         role : "read",
         db : "assets"
       }
   ],
   mechanisms : [
      "SCRAM-SHA-1",
      "SCRAM-SHA-256"
   ],
   authenticationRestrictions : [ {
      clientSource: ["69.89.31.226"],
      serverAddress: ["172.16.254.1"]
   } ]
}

use reporting
db.updateUser(
   "reportUser256",
   {
     mechanisms: [ "SCRAM-SHA-256" ]
   }
)