🟡 Crypto Price Telegram Bot

A simple Node.js + TypeScript bot that fetches live cryptocurrency prices (BTC, ETH, SOL, BNB) every 1 minute and sends updates to a Telegram chat using the Telegram Bot API.

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✨ Features

• Fetches live crypto prices using CoinGecko API
• Sends formatted updates to Telegram every minute
• Shows 24h price change indicators with 🔺 or 🔻
• Powered by Node.js, TypeScript, Axios, and node-cron
• Ready to deploy on Render (as a background worker)

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📦 Tech Stack

• Node.js + TypeScript
• Axios
• node-cron
• dotenv
• Telegram Bot API
• CoinGecko API

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🚀 Getting Started

1. Clone the repo

git clone https://github.com/david-patrick-chuks/Crypto-Price-Telegram-Bot.git
cd Crypto-Price-Telegram-Bot

2. Install dependencies

npm install

3. Create a .env file

BOT_TOKEN=your_telegram_bot_token
CHAT_ID=your_telegram_chat_id

4. Build and Start

npm start

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🧠 How It Works

• Every 1 minute, the bot:
  1. Fetches prices from CoinGecko
  2. Formats the data nicely
  3. Sends it to a Telegram chat via sendMessage

You can change the coins or update interval in the code.

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⚙️ Deployment on Render

🔧 render.yaml

services:
  - type: worker
    name: Crypto-Price-Telegram-Bot
    runtime: node
    repo: https://github.com/YOUR_USERNAME/YOUR_REPO_NAME
    buildCommand: npm install && tsc
    startCommand: node build/bot.js
    envVars:
      - key: BOT_TOKEN
        sync: false
      - key: CHAT_ID
        sync: false

After setting up the repo, go to Render → New → Background Worker, and use the render.yaml to auto-configure the app.

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📁 Folder Structure

📦 crypto-telegram-bot/
├── src/
│   ├── interfaces/
│   │   └── prices.ts         # Contains interfaces & types
│   ├── utils/
│   │   └── format.ts         # Price formatting helper
│   ├── bot.ts
│   └── server.ts               # Main bot logic
├── .env                      # Env vars for the bot
├── package.json
├── tsconfig.json
├── Dockerfile                # Docker configuration file
└── README.md (optional)

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🛡 License

This project is open source under the MIT License.

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🙌 Contributing

Pull requests are welcome! If you'd like to suggest changes or add features, feel free to fork the repo and submit a PR.

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👨‍💻 Author

David Patrick (BugHunter.dev) – @david-patrick-chuks
✨ Built with love 🌸.