What is a role in MongoDB?
Roles grant users access to MongoDB resources. MongoDB provides a number of built-in roles that administrators can use to control access to a MongoDB system. However, if these roles cannot describe the desired set of privileges, you can create new roles in a particular database.
What is role-based authorization in MongoDB?
MongoDB grants access to data and commands through role-based authorization and provides built-in roles that provide the different levels of access commonly needed in a database system. You can additionally create user-defined roles.
What is user_info parameter in MongoDB?
User or user_info: Type of user parameter is a document in creating user method. This parameter will contain the document and authentication of the user. User info contains username and privileges, which we have defining for the user. Write concern: This is an optional parameter to create a user method in MongoDB.
How to use security options in MongoDB?
The below examples show the use of security options in MongoDB. The authorization setting in MongoDB will enable and disable the role-based access control. Below syntax shows that create a user in MongoDB, db.createUser method is used to create a new user in MongoDB.
How do you revoke a role in MongoDB?
In the roles field, you can specify both built-in roles and user-defined roles. To specify a role that exists in a different database, specify the role with a document. The db. revokeRolesFromUser() method wraps the revokeRolesFromUser command.
How remove all user from MongoDB?
dropAllUsers() method is used to remove all users associated with a database.Syntax: db.dropAllUsers(writeConcern) Removes all users from the current database.Note. The dropAllUsers method removes all users from the database. The dropAllUsers method takes the following arguments:Parameters: Name. Description. Required /
Which is the method used in MongoDB to grant user?
createUser() method using mongosh . The first user you create must have privileges to create other users. The userAdmin or userAdminAnyDatabase role both confer the privilege to create other users. You can grant a user privileges by assinging roles to the user when you create the user.
How does MongoDB determine roles?
To view information about the current user, run db. getUser() on the user's database. You'll need to check with your MongoDB provider on how they've set up the security to figure out how to add the correct roles to your users.
How do I delete a file in MongoDB?
The MongoDB shell provides the following methods to delete documents from a collection:To delete multiple documents, use db. collection. deleteMany() .To delete a single document, use db. collection. deleteOne() .
How do I drop a database in MongoDB?
The best way to do it is from the mongodb console: > use mydb; > db. dropDatabase(); Alternatively, you can stop mongod and delete the data files from your data directory, then restart.
How do I change user roles in MongoDB?
Required Access 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.
How do I remove all files from a collection in MongoDB?
To delete all documents in a collection, pass an empty document ( {} ). Optional. To limit the deletion to just one document, set to true . Omit to use the default value of false and delete all documents matching the deletion criteria.
Which of the following roles is recommended to be used to create and manage users and roles?
The user administrator (USERADMIN) role includes the privileges to create and manage users and roles (assuming ownership of those roles or users has not been transferred to another role).
Who can create and assign user roles in the database?
First, the (Database Administrator)DBA must create the role. Then the DBA can assign privileges to the role and users to the role.
How do I give a database access to a user in MongoDB?
MongoDB: db. grantRolesToUser() method is used to grants an additional role and its privileges to a user. The name of the user to whom to grant roles. An array of additional roles to grant to the user. The level of write concern for the modification.
What are CRUD operations in MongoDB?
The basic methods of interacting with a MongoDB server are called CRUD operations. CRUD stands for Create, Read, Update, and Delete. These CRUD methods are the primary ways you will manage the data in your databases.
Connect to MongoDB Database
By default, the mongosh or mongo command connects with the local MongoDB database on the localhost:27017 . So, mongosh and mongosh "mongodb://localhost:27017" are the same that connect to a database on the localhost at port 27017.
MongoDB Command Help
You can also get help on mongosh or mongo commands after connecting to a database using the help command, as shown below.
MongoDB User Operations and Roles
Access control on the database is more important when we are working with users and roles in MongoDB.
Recommended Articles
This is a guide to MongoDB Users. Here we also discuss the definition and MongoDB users operations and roles along with different examples and its code implementation. You may also have a look at the following articles to learn more –