Implement chat application

[m-berezovskyy]

Summary

Implemented a full-stack chat application using Node.js.

Features

• Username selection and storage in localStorage
• Sending messages with author, time, and text
• Creating, joining, renaming, and deleting rooms
• Loading previous messages when joining a room
• Real-time updates using Server-Sent Events
• Persistent storage for rooms and messages
• Responsive user interface

Testing

• npm test
• Manual API testing for room CRUD and messaging

[mateacademy-ai-mentor]

Review Summary

Your solution successfully meets all 13 task requirements. The chat application correctly implements username handling with localStorage persistence, message structures with author/time/text fields, and all room operations (create/rename/join/delete). The server provides proper RESTful endpoints, and clients receive previous messages when joining rooms. While there is a minor code quality concern regarding redundant logic paths in the loadRooms() function, this does not prevent functionality from working correctly. The implementation is complete and functional.

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