REST APIs with Flask and Python - Logging Out Users in Your Rest API

This video tutorial explains how to implement a user logout feature using JWT and a blacklist. It covers initializing a blacklist as an empty set, adding a user logout resource, and creating a POST request to blacklist the JWT ID. The tutorial emphasizes the importance of blacklisting the JWT ID instead of the user ID to allow users to log back in. It also demonstrates how to test the logout functionality using Postman, ensuring that the token is revoked and users can log back in with a new token.

What is the initial state of the blacklist when setting up user logout?

• A list with default users

• A dictionary with user IDs

• An empty set

• A pre-filled set with tokens

Why is it important to blacklist the JWT instead of the user ID during logout?

• To prevent the user from logging in again

• To save memory space

• To allow the user to log back in and access endpoints

• To permanently block the user from the system

What does JTI stand for in JWT standards?

• JWT Token Identifier

• Java Token Identifier

• JavaScript Token ID

• JWT ID

Which function is used to retrieve the JTI from a JWT?

• retrieveJTI()

• fetchTokenID()

• getJWTID()

• getRawJWT()

What is the purpose of the 'get raw JWT' function in the logout process?

• To delete the JWT

• To encrypt the JWT

• To retrieve the unique identifier of the JWT

• To generate a new JWT

In the demonstration, what is the first step after running the app?

• Logging out the user

• Registering a new user

• Creating a new endpoint

• Revoking the token

What happens to the token after a successful logout in the demonstration?

• It remains active

• It is transferred to another user

• It is revoked and cannot be used again

• It is deleted permanently