README.md

League of Legends Data Viewer

A Streamlit application for viewing League of Legends match history and champion mastery data using the Riot Games API.

Features

• Match History: View the last 10 matches with detailed statistics

  • Champion played
  • KDA (Kills/Deaths/Assists)
  • CS (Creep Score)
  • Damage dealt to champions
  • Game mode and duration
  • Win/Loss indicator

• Champion Mastery: Display top 10 champions by mastery

  • Champion level
  • Mastery points

• Multi-Region Support: Supports all major LoL regions

  • Japan (jp1)
  • Korea (kr)
  • North America (na1)
  • Europe West (euw1)
  • Europe Nordic & East (eun1)
  • And more...

Setup

1. Install Dependencies

pip install -r requirements.txt

2. Get Riot API Key

1. Visit Riot Developer Portal
2. Sign in with your Riot account
3. Generate a Development API Key

3. Run the Application

streamlit run streamlit_app.py

Usage

1. Open the application in your browser
2. Select your region from the sidebar
3. Enter your Riot API Key in the sidebar
4. Enter a summoner name
5. Click "Fetch Data"

API Rate Limits

Development API keys have rate limits:

• 20 requests every 1 second
• 100 requests every 2 minutes

The app includes a small delay between requests to help avoid rate limiting.

Note

• Make sure to select the correct region for the summoner you're searching
• API keys expire after 24 hours and need to be regenerated
• For production use, apply for a production API key from Riot

License

This project is for educational purposes. League of Legends and Riot Games are trademarks or registered trademarks of Riot Games, Inc.