SwiftUI and Node.js Full Stack - Build Twitter - iOS 16 - Tokens

The video tutorial addresses issues with the current authentication system, particularly the lack of user session tracking. It introduces JSON Web Tokens (JWT) as a solution, explaining their implementation in JavaScript. The tutorial covers integrating JWT into the application, creating and saving tokens in the user schema, and using tokens for user login and logout. The session concludes with testing the JWT implementation, ensuring users can log in and out effectively.

What is the main problem with the current authentication system?

• Users can access other users' accounts.

• Users can log in without a password.

• Users have to log in every time they use the app.

• Users cannot log out once logged in.

Which library is suggested for implementing tokens in JavaScript?

• Express.js

• React.js

• JSON Web Token

• Node.js

What is the purpose of adding a 'tokens' property to the user schema?

• To store user passwords

• To store user preferences

• To store user roles

• To store authentication tokens

What is the first step in creating a token using the JWT library?

• Define the token expiration time

• Create a payload with the user ID

• Log the user out

• Encrypt the token with a public key

What is the role of the 'sign' function in the JWT library?

• To verify the token

• To decode the token

• To create the token

• To delete the token

What must be done to ensure the token generation function works correctly?

• Remove the private key

• Make the function synchronous

• Use the 'await' keyword

• Use a global variable

What happens when a user logs in after integrating token generation?

• The user is logged out immediately

• A token is generated and returned

• The user's password is changed

• The user's account is deleted