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

This video tutorial explains how to implement follow and unfollow functionality in a web application. It covers the use of PUT requests to manage user relationships, detailing the logic for adding and removing followers. The tutorial also addresses edge cases, such as preventing users from following themselves, and demonstrates testing the functionality using Postman. The video concludes with a brief overview of future steps, including implementing the unfollow feature.

Why is a PUT request used instead of a POST request for the follow/unfollow functionality?

• PUT can create or replace a resource, which suits the follow/unfollow needs.

• PUT is faster than POST.

• POST cannot be used for user interactions.

• PUT is more secure than POST.

What happens when User A follows User B?

• User A's ID is added to User B's followers list.

• User B's ID is added to User A's followers list.

• User A's ID is removed from User B's followers list.

• User B's ID is removed from User A's followers list.

What is the purpose of the authentication middleware in the follow functionality?

• To encrypt the user's password.

• To verify the user's identity and fetch user data from the database.

• To log the user out after following someone.

• To send a notification to the user being followed.

What check is performed to prevent a user from following themselves?

• The user's email is checked against a database.

• The user's password is verified.

• The user's session is terminated.

• The user's ID is compared with the ID in the URL parameters.

What status code is returned if a user successfully follows another user?

• 500

• 403

• 404

• 200

What happens if a user tries to follow someone they are already following?

• A status code of 500 is returned.

• A status code of 403 is returned.

• A status code of 304 is returned.

• A status code of 200 is returned.

What tool is used to test the follow functionality?

• Postman

• Robo 3T

• Visual Studio Code

• GitHub

What is checked to ensure the follow functionality is working correctly?

• The user's email is validated.

• The server's uptime is monitored.

• The user's password is checked.

• The IDs in the followers and followings lists are verified.

What is planned for the next episode related to the follow functionality?

• Implementing the unfollow functionality.

• Adding a new user interface.

• Improving server performance.

• Introducing a new database schema.

How can the number of followers be determined?

• By counting the IDs in the followers array.

• By sending a request to the admin.

• By checking the user's profile page.

• By querying the server logs.