LeetCoders Telegram Bot

Solve LeetCode algorithm problems with your friends using a Telegram bot!

Introduction

This Telegram bot is designed to make solving LeetCode problems a collaborative and fun experience. Whether you're working solo or with a group of friends in a Telegram group, this bot provides a set of commands to manage and track your progress in solving algorithmic challenges.

The key features of this bot include:

Difficulty Selection: Choose from Easy, Medium, and Hard difficulty levels for LeetCode questions.

Progress Report: Get a report on the number of questions solved in each difficulty level.

Persistent Database: Solved questions persist in the database, making it easy to resume or track progress over time.

Customizable Cron Job: Change the interval for receiving new questions by setting a Cron job expression.

Telegram Polls: Engage with friends by sending polls to track progress and collaborate on solving questions.

Skip Functionality: Skip questions that have been previously solved.

Bot Commands

/start: Begin the LeetCode challenge and receive your first question.

/difficulty: Choose the difficulty level for the next question (Easy, Medium, Hard). Selected difficulty will be persist.

/total: Get a report on the total number of questions solved in each difficulty level.

/another: Skip the current question and receive another one.

How to Deploy

Prerequisites

Docker installed on your machine or server. A Telegram bot token obtained from the BotFather on Telegram. Read more here.

Steps

Clone the repository:

git clone https://github.com/amirhosseinNouri/leet-coders-telegram-bot.git

Navigate to the project directory:

cd leet-coders-telegram-bot

Create a .env or .env.production file in the root directory with the following content:

TELEGRAM_BOT_TOKEN=your_telegram_bot_token
DATABASE_URL=mongodb://mongodb_host:27017/leet-coders-bot # or mongodb://localhost:27017/leet-coders-bot for running the bot on localhost
CRON_REGEX=00 00 * * 0,1,2,3,6 # At 12:00 AM, only on Sunday, Monday, Tuesday, Wednesday, and Saturday

Or you can just create a copy of .env.sample file and apply your changes there.

Note that the content of .env.production can override the variables with the same name in the .env file.

Replace your_telegram_bot_token with your actual Telegram bot token.

Build and run the Docker containers:

docker-compose up -d

Your LeetCode Challenge Bot is now running and ready to use!

Feel free to explore and enhance this project. Happy coding! 🚀