SinglePairDexSwap

SinglePairDexSwap is a decentralized exchange (DEX) built on the Ethereum blockchain. It allows users to swap single pair of ERC20 tokens directly from their wallets in a permissionless and decentralized manner.

Features

• ERC20 Token Swapping: Swap any ERC20 tokens directly from your wallet.
• Liquidity Provision: Users can add liquidity to the pool and earn fees.
• Automated Market Making (AMM): SinglePairDexSwap uses the constant product formula for automated market making.

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.

Prerequisites

• Node.js and npm or yarn
• Hardhat
• Ethereum wallet

Installation

1. Clone the repository and navigate to the newly created folder:

   git clone https://github.com/EhsanTheCoderr/SinglePairDexSwap.git
   cd SinglePairDexSwap

2. Install the dependencies:

    yarn

3. Compile the smart contracts:

    yarn hardhat compile

4. Deploy the contracts:

   yarn hardhat deploy

Running the tests

To run the tests, use the following command:

yarn hardhat test

Run the scripts

Note: Please ensure that the contract is deployed on localhost/ganache/testnet and the node is running properly before running the script. Set the environment variable $env:signer to the desired account index before executing the scripts.

1. Add Liquidity:

   $env:signer="0"; yarn hardhat run .\scripts\DexSwap-AddLiquidity.js --network localhost

2. Swap Token1 or Token2 by selecting the file name:

   $env:signer="0"; yarn hardhat run .\scripts\DexSwap-SwapFromToken1.js --network localhost

3. Remove Liquidity:

   $env:signer="0"; yarn hardhat run .\scripts\DexSwap-RemoveLiquidity.js --network localhost

Built With

• Solidity - Ethereum's smart contract language
• Hardhat - Ethereum development environment
• OpenZeppelin - Library for secure smart contract development

License

This project is licensed under the MIT License.

Acknowledgments

• Ethereum Foundation
• OpenZeppelin