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

In this tutorial, the instructor addresses a previous error related to JSON requests in Express and demonstrates how to create and fetch users using POST and GET requests. The video highlights the importance of error handling and security, particularly the need to avoid sending sensitive data like passwords. Future episodes will focus on implementing authentication and enhancing security.

What was the main issue with the JSON request in the previous episode?

• The request method was not supported.

• The endpoint URL was incorrect.

• The server was down.

• The JSON module from Express was not included.

What is a potential risk when sending user data back to the client?

• The data might be too large.

• The client might not receive the data.

• Sensitive information like passwords might be exposed.

• The data might not be formatted correctly.

What is the purpose of using the 'await' keyword in the GET request?

• To fetch data from a different server.

• To ensure the code is error-free.

• To handle asynchronous operations and wait for the server response.

• To make the code run faster.

Why is it important to use a try and catch block in the GET request?

• To ensure the server is always online.

• To speed up the request process.

• To handle potential errors during the data fetching process.

• To make the code more readable.

What was observed when testing the GET request in Postman?

• The request returned an empty array.

• Only one user was fetched.

• The request failed due to a server error.

• All users were fetched, including sensitive data like passwords.

What is a major security concern mentioned in the final section?

• The server might crash.

• The request might take too long to process.

• Users can be fetched without authentication.

• The data might be too large to handle.

What is planned for future episodes to address the security issues?

• Changing the database structure.

• Reducing the size of user data.

• Implementing an authentication system.

• Improving server performance.