Project Name: (Customizable Name) Offline-First Notion Replica with Unique UI Part 1: Project Overview and Core Functionality Project Description Develop an offline-compatible Notion-like workspace with a different UI and enhanced usability. Users should be able to create structured notes, databases, and task boards without requiring an internet connection. The app should sync data once online, maintaining a fluid, local-first experience. Key Features
I'll create a Notion-like workspace with offline capabilities and a unique UI design. This application will allow users to create and manage documents, kanban boards, and tables locally, with cloud synchronization when online.
Offline Document Creation
Local Database for Storage
Sync Engine
Custom UI
Multi-View Support
The application uses:
The workspace is organized with a sidebar for navigation and a main content area that changes based on the selected view. Users can create, edit, and organize their content regardless of their connection status.
Database Schema To support flexible note-taking, databases, and task management, use a structured offline database schema: sql CREATE TABLE pages ( id INTEGER PRIMARY KEY AUTOINCREMENT, title TEXT NOT NULL, content TEXT NOT NULL, type TEXT CHECK( type IN ('document', 'table', 'kanban') ), created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP );
CREATE TABLE blocks ( id INTEGER PRIMARY KEY AUTOINCREMENT, page_id INTEGER NOT NULL, block_type TEXT CHECK( block_type IN ('text', 'image', 'checkbox', 'table', 'list') ), content TEXT, order_index INTEGER, FOREIGN KEY (page_id) REFERENCES pages(id) );
I'll implement the provided SQL schema for our offline-first Notion replica using IndexedDB. This will support the flexible note-taking, databases, and task management features while maintaining offline capabilities.
I've implemented the provided SQL schema for our offline-first Notion replica using IndexedDB. The implementation includes:
Created two main object stores in IndexedDB:
pages - Stores document, kanban, and table pagesblocks - Stores individual content blocks (text, images, checkboxes, etc.)Page and Block typesThis implementation provides a solid foundation for the offline-first Notion replica, with proper database structure and relationships between pages and blocks. The application can now store structured data locally and sync it to the cloud when online.
Part 2: API Design and Offline Handling Dummy API (Offline Use) To ensure offline functionality, dummy APIs simulate server interactions: Create a Page (Offline) { "method": "POST", "url": "/api/pages/create", "description": "Creates a new page locally.", "payload": { "title": "string", "type": "string" }, "response": { "page_id": "integer", "message": "Page created successfully." } }
Retrieve Pages (Offline) { "method": "GET", "url": "/api/pages", "description": "Fetches all stored pages offline.", "response": { "pages": [ { "id": "integer", "title": "string", "type": "string", "created_at": "timestamp" } ] } }
REST API for Syncing (Online Mode) When online, the app syncs local pages and updates using REST APIs: fetch('https://server.com/api/sync', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ user_id: localStorage.getItem("user_id"), pages: getOfflinePages() }) }).then(response => response.json()) .then(data => console.log("Synced successfully:", data)) .catch(error => console.error("Sync failed:", error));