Build a GDPR-Compliant Chat/Messaging App

The tutorial outlines the process of building a messaging app compliant with the General Data Protection Regulation (GDPR) using the Stream Messaging API, allowing users to export their chat history. It highlights the necessity of GDPR compliance for apps with EU users, warning that non-compliance can result in significant fines. The app consists of a backend server for user authentication and email functionality, and a frontend built with React.js. The guide details setting up the environment, creating necessary files, and configuring the backend with Node.js, MongoDB, and various npm packages. It explains how to establish connections to MongoDB and Stream Chat, create API endpoints for user authentication and data export, and use nodemailer for email communication. On the client side, the tutorial demonstrates creating components for login and chat functionalities, utilizing packages like axios and bootstrap, and implementing a custom UI for exporting chat data. The tutorial concludes by encouraging further enhancements, such as enabling data deletion requests, and provides the full source code on GitHub.