Architecture Link (Excalidraw) ----> LINK

BOT LINK

DeFi Telegram Bot

A Telegram bot built using Node.js that allows users to interact with custom tokens on the blockchain. The bot facilitates actions like creating wallets, buying/selling tokens, checking balances, and ejecting private keys. It integrates with smart contracts for tokens and stores user data securely using MongoDB.

Features

• Custom Token Integration: Supports seven custom tokens: USDC, USDT, BNB, WBTC, SHY, PEPE, and SHIB.
• Wallet Generation: Automatically generates a public-private key pair for each user upon initialization.
• Token Operations: Allows users to buy, sell, and check the balance of their tokens.
• Private Key Management: Stores the private key in MongoDB and allows users to eject it securely.

Technologies Used

• Node.js: Backend logic and Telegram bot server.
• Foundry: Smart contract testing.
• Solidity: Smart contract development for token management.
• MongoDB: Database for storing user private keys.
• Telegram API: For bot interaction.

Getting Started

Prerequisites

• Node.js: Install Node.js (v14+).
• MongoDB: Set up a MongoDB instance to store private keys.
• Telegram Bot Token: Create a bot on Telegram using BotFather and get the token.
• Foundry: Install Foundry for testing and deploying smart contracts.

Installation

1. Clone the repository:

   git clone https://github.com/psg-19/DeFi_Telegram_BOT.git
   cd test

2. Install dependencies:

   cd BOT-Server
   npm install

3. Set up environment variables: Create a .env file and add the following:

   BOT_API_KEY= < YOUR TELEGRAM BOT API KEY >
   MONGO_DB= < YOUR MONGO DB CONNECTION STRING >
   ALGORITHM= < Crypto Algorithm To use >
   ENCRYPTION_KEY= < Crypto Encryption Key >
   ENCRYPTION_IV=  < Crypto Encryption IV >
   ALCHEMY_RPC= < Your Alchemy RPC URL Where Smart Contracts Are Deployed >
   TOKEN_TO_SERVER_CONTRACT= <Address Of Token To Server contract >
   TOKEN_TO_SERVER_CONTRACT_OWNER_PRIVATE_KEY= < Address Of Owner Who Deployed Token To Server contract >
   
    

4. Setup Foundry

   cd Smart_Contracts
   npm i
   forge Test

5. Deploy the smart contracts using Foundry:

forge create --rpc-url < Your Alchemy RPC URL >   --private-key <private key of yours>  src/<File name>.sol:<Function Name> --legacy --broadcast

6. Start the bot:

   npm run build
   npm start

Usage

1. /start: Initializes the bot, creates a public-private key pair, and stores the private key in MongoDB.
2. menu: Opens up menu for transaction.
3. help: Opens up help section.

Smart Contracts

• Custom Tokens: USDC, USDT, BNB, WBTC, SHY, PEPE, SHIB smart contracts have been created and tested.
• Master Contract: A smart contract that acts as the owner of all tokens and facilitates interaction with the Node.js server.