How to Build a Collaborative Editor with Next.js and Liveblocks

The guide walks through building a collaborative text editor with Next.js and Liveblocks. It starts from the idea of real-time collaboration, then covers WebSockets, user presence, room access, and document synchronization.

Reading notes

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• The text defines collaborative editors as tools in which several people work on the same document at the same time and see changes in real time.
• The explanation of how it works goes through real-time communication between client and server, with the server receiving edits and distributing updates to all participants.
• WebSockets appear as the technical basis for maintaining an open connection and allowing continuous data exchange between client and server.
• Liveblocks is presented as a library that simplifies real-time collaboration by offering presence, storage, and room management.
• The guide uses Next.js, Liveblocks, Tiptap, and Yjs to build a collaborative text editor with real-time editing and indication of online users.
• The setup includes creating a Next.js project, installing Liveblocks and Tiptap dependencies, and defining global types for presence and user metadata.
• The interface flow includes components for toolbar, avatars, error handling, connection to a room, and reading the roomId from the URL.
• The editor component creates a Y.Doc, connects the LiveblocksYjsProvider, and uses collaboration and cursor extensions from Tiptap.
• The article describes a liveblocks-auth endpoint that prepares the user session, grants full access to the room, and uses fake user data for demonstration.
• The LiveblocksProvider and the RoomProvider are used for authentication, session, and synchronization of room participants.
• The final test consists of running the development server, entering a room ID, and using the same room in two browsers to see real-time collaboration.