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Problem Description
Design an online application that allows users to create, manage, and share todo lists with other users.
Core Requirements
The system should support the following functionalities and considerations:
- User Flows & Product Requirements: Define the primary user interactions, including creating an account, creating todo lists, adding/editing/deleting todo items within a list, and sharing lists with other users.
- Backend APIs: Design the necessary API endpoints to support these user flows, specifically for:
- Creating and managing todo lists.
- Sharing lists with specified users, including managing permissions.
- Creating, updating, and deleting individual todo items within a list.
- Database Schema: Propose a database schema to store essential data, including:
- User information.
- Todo lists.
- Individual todo items.
- Permissions and relationships between users and shared lists.
- Real-time Updates: Implement a mechanism to ensure that all collaborators on a shared todo list see changes (e.g., item additions, edits, deletions) quickly and in near real-time.
AI interview prep
Core dilemma
Balancing the need for immediate, consistent real-time updates across multiple collaborators with the complexities of managing granular access control and ensuring data integrity under concurrent modifications.
Mid-level signals3
Senior signals3
Red flags3
3 tradeoffs and 3 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Problem Description
Design an online application that allows users to create, manage, and share todo lists with other users.
Core Requirements
The system should support the following functionalities and considerations:
- User Flows & Product Requirements: Define the primary user interactions, including creating an account, creating todo lists, adding/editing/deleting todo items within a list, and sharing lists with other users.
- Backend APIs: Design the necessary API endpoints to support these user flows, specifically for:
- Creating and managing todo lists.
- Sharing lists with specified users, including managing permissions.
- Creating, updating, and deleting individual todo items within a list.
- Database Schema: Propose a database schema to store essential data, including:
- User information.
- Todo lists.
- Individual todo items.
- Permissions and relationships between users and shared lists.
- Real-time Updates: Implement a mechanism to ensure that all collaborators on a shared todo list see changes (e.g., item additions, edits, deletions) quickly and in near real-time.