• 🔄 Automatic Daily Challenge: Automatically retrieves and posts LeetCode daily challenges
• ⏰ Scheduled Delivery: Configurable posting time for each server
• 🎮 Slash Commands: Easy-to-use slash commands for manual control
• 📊 Rich Information: Includes title, difficulty, link, tags, and more
• 🌐 Multi-server Support: Independent settings for each Discord server
• 🔔 Custom Notifications: Configurable role mentions and channels
• 🌍 Timezone Support: Server-specific timezone settings
• 📅 Historical Challenges: View past daily challenges by date
• 🔍 Problem Lookup: Query single or multiple LeetCode problems with custom titles and messages
• 📈 Submission Tracking: View recent accepted submissions for any user
• 🤖 AI-Powered Features: Optional problem translation and inspiration (requires Gemini API key)
• 💾 Smart Caching: Efficient caching system for better performance

1. Clone the repository:

   git clone https://github.com/cxyfer/leetcode-daily-discord-bot.git cd leetcode-daily-discord-bot

2. Configure your bot:

   # Copy and edit the configuration file cp config.toml.example config.toml # Edit config.toml with your settings # Alternative: Use environment variables (.env) cp .env.example .env # Edit .env with your Discord bot token

3. Run database migration (if upgrading from older version):

   # Migrate server settings from settings.db to data.db sqlite3 data/data.db < data/migrate_settings.sql

4. Run the bot:

   uv run bot.py

The bot supports two configuration methods:

Create a config.toml file from the example:

[discord] token = "your_discord_bot_token_here" [llm.gemini] api_key = "your_google_gemini_api_key_here" # Optional, for AI features [schedule] post_time = "00:00" # Default posting time timezone = "UTC" # Default timezone

See config.toml.example for all available options.

For backward compatibility, you can use a .env file:

DISCORD_TOKEN=your_bot_token_here GOOGLE_GEMINI_API_KEY=your_gemini_api_key_here # Optional POST_TIME=00:00 # Optional TIMEZONE=UTC # Optional

Note: Environment variables take precedence over config.toml settings.

• Send Messages
• Embed Links
• Use Slash Commands

• Message Content - Receive message content
  • Note: When the bot joins more than 100 servers, this permission needs to be verified and approved by Discord

/daily # Get today's LeetCode.com challenge (private) /daily public:true # Get today's challenge and show response publicly /daily date:2024-01-15 # Get historical challenge from Jan 15, 2024 

# Single problem lookup /problem problem_ids:1 # Get Two Sum problem from LeetCode.com (private) /problem problem_ids:1 public:true # Get Two Sum problem publicly # Multiple problems lookup /problem problem_ids:1,2,3 # Get multiple problems with overview /problem problem_ids:1,2,3 title:Dynamic Programming Practice # Custom title /problem problem_ids:1,2,3 message:Today's study plan # With personal note /problem problem_ids:1,2,3 title:Weekly Contest Problems message:Need to practice these # Both title and message # Multi-problem with domain selection /problem problem_ids:1,2,3 domain:cn # Query from LeetCode.cn 

/recent username:alice # View 20 recent submissions (private) /recent username:alice limit:50 # View 50 recent submissions /recent username:alice limit:50 public:true # View 50 submissions publicly 

/set_channel # Set current channel for daily notifications /set_role # Configure role to ping /set_post_time time:08:00 # Set daily post time to 8:00 AM /set_timezone timezone:America/New_York # Set timezone /show_settings # View current configuration 

1. Set up notification channel using /set_channel (Required)
2. Configure role mentions with /set_role (Optional)
3. Set posting time and timezone (Optional)
4. Verify settings with /show_settings

The /problem command supports querying multiple problems at once with enhanced customization:

When querying multiple problems, the bot displays:

• Grouped Display: Problems organized in groups of 5 per field
• Problem Links: Direct clickable links to LeetCode problems
• Difficulty Indicators: Color-coded emojis (🟢 Easy, 🟡 Medium, 🔴 Hard)
• Problem Stats: Rating and acceptance rate when available
• Interactive Buttons: Click numbered buttons to view detailed problem information

• Custom Title: Replace the default title with your own (max 100 characters)
• Personal Message: Add notes, study plans, or context (max 500 characters)
• User Attribution: Shows your name and avatar when title or message is provided

# Study plan organization /problem problem_ids:70,322,518 title:📚 Dynamic Programming Week 1 message:Focus on bottom-up approach # Contest preparation /problem problem_ids:1,15,42 title:🏆 Weekly Contest #420 Prep message:Practice these before Sunday # Topic-based practice /problem problem_ids:104,226,543 title:🌳 Binary Tree Fundamentals message:Master tree traversal first 

• 🎮 Enhanced Command Interface
  • Add slash command prompts
  • Reply in the same channel where slash commands are used
  • Add /problem command for querying problems by ID
  • Enhanced /problem command with multi-problem support and customization
  • Add /recent command for viewing user submissions
  • Support historical daily challenges with date parameter
• ⚙️ Advanced Configuration System
  • Allow admin users to set the configuration
    • Set the channel to post the daily challenge
    • Set the posting time and timezone
    • Set the role to mention
    • Set customizable message templates
    • Integrate the existing excessive setup instructions
    • More flexible notification settings
• 🌐 Multi-server Infrastructure
  • Support server-specific configurations
• 📝 Code Optimization
  • Implement improved runtime logging
  • Implement modular architecture
  • Add comprehensive documentation
• 🇨🇳 LeetCode.cn Integration
  • Add slash command /daily_cn for LeetCode.cn daily challenge
  • Implement separate scheduler for LeetCode.cn challenges
• 🗄️ Database Integration
  • Store and query problem information in database
  • Enable historical daily challenge lookup
• 🔍 Large Language Model Integration
  • Integrate LLM to generate problem translation and inspiration
  • Cache LLM results to improve performance
• 📊 User Engagement Features
  • Track submission records of specific users
  • Interactive navigation for viewing multiple submissions
  • Paginated display with clean UI
  • Allow users to configure tracked LeetCode accounts
  • Implement server-wide submission leaderboards
• 🐳 Containerization Support
  • Add Docker compose file and image
• 🌍 Internationalization
  • Support multiple display languages

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

• discord.py - Discord bot framework
• tomli - TOML parsing for Python < 3.11
• python-dotenv - Environment variable management
• requests - HTTP library for API calls
• pytz - Timezone handling
• beautifulsoup4 - HTML parsing
• colorlog - Colored logging output
• langchain - LLM application framework
• langchain-google-genai - Google Gemini LLM integration
• aiohttp - Asynchronous HTTP client/server

This project is licensed under the MIT License - see the LICENSE file for details.