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.

How does the authentication middleware contribute to the follow functionality?

What is the significance of using asynchronous processes in this functionality?

What error message is returned if a user attempts to follow themselves?

What future functionalities are hinted at in the episode regarding user interactions?