OTC Token Swap DApp

A decentralized application for over-the-counter token swaps on Polygon networks.

Networks Supported

• Polygon Mainnet
• Polygon Amoy Testnet
• additional can be added depending on where smart contract is deployed and added to configs

Prerequisites

• Node.js
• MetaMask
• Test tokens for testing (on respective networks)
• An .env file in the root directory

Environment Setup

1. Create a .env file in the root directory with the following variables:

PRIVATE_KEY=your_private_key
CONTRACT_ADDRESS=0xF9D874860d5801233dd84569fad8513e0037A5d9
RECIPIENT_ADDRESS=your_recipient_address
TOKEN1_ADDRESS=0xd85e481D10f8d77762e6215E87C5900D8b098e94
TOKEN2_ADDRESS=0xcDC1F663207f1ec636C5AF85C1D669A4a3d02fB3
YOUR_ALCHEMY_KEY=your_alchemy_key

Network Configuration

The application currently runs on Polygon Amoy Testnet. Network configuration is managed in config.js:

{
    "80002": {
        name: "Amoy",
        contractAddress: "0xF9D874860d5801233dd84569fad8513e0037A5d9",
        explorer: "https://www.oklink.com/amoy",
        rpcUrl: "https://rpc.ankr.com/polygon_amoy",
        fallbackRpcUrls: [
            "https://polygon-amoy.blockpi.network/v1/rpc/public",
            "https://polygon-amoy.public.blastapi.io"
        ]
    }
}

Getting Started (locally)

1. Install dependencies:

npm install

2. Ensure your .env file is properly configured

3. Start the node server:

http-server

4. Connect your wallet - the application will automatically:
   • Request connection to MetaMask
   • Switch to Amoy testnet if needed
   • Initialize the contract interface

Features

• Create OTC swap orders
• Fill existing orders
• Cancel your orders
• View active orders
• Network switching support
• Real-time order updates

Testing

1. Test on Amoy testnet first
2. Get test tokens from the Polygon faucet
3. Ensure your wallet has sufficient native tokens for gas

Security Notes

• Always verify token addresses
• Check order details carefully before swapping
• Never share your private keys
• Use trusted token contracts only

Network Details

Amoy Testnet (Current Network)

• Chain ID: 80002 (0x13882)
• Primary RPC URL: https://rpc.ankr.com/polygon_amoy
• Fallback RPC URLs:
  • https://polygon-amoy.blockpi.network/v1/rpc/public
  • https://polygon-amoy.public.blastapi.io
• Explorer: https://www.oklink.com/amoy
• Faucet: https://faucet.polygon.technology/
• Native Currency: POL (18 decimals)

Support

For issues and feature requests, please open an issue on the repository.