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

The video tutorial addresses a common issue in programming where sensitive user data, such as passwords, is inadvertently shared with the client side during a fetch request. The instructor explains how to modify the user schema to exclude passwords by redefining the toJSON function. This involves converting JSON data into an object, removing the password, and then returning the modified object. The solution is tested using Postman to ensure passwords are not exposed. Future episodes will cover authentication and token management to further enhance security.

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