Automated Market Maker (AMM) Project

This repository contains a sample of an Automated Market Maker (AMM) developed to show my skills as a Smart Contract developer with Solidity. The architecture of the project is based on the UniswapV2 protocol and implements the constant product model. The project was developed using Foundry, Openzeppelin-contracts.

These are the addresses of the contracts deployed on the Sepolia test network:

PoolRouter: 0x812bc3a9c9E931Ecf4dfC206e4b5251D373A056f

PoolFactory: 0xC2Dd5C339c51dD4DDE011D7903b819C4a6a1D985

Smart Contracts

1.LiquidityPool: This smart contract represents a generic liquidity pool.

2.PoolFactory: The pool factory manage and creates different liquidity pools.

3.PoolRouter: The router is the contract designed to interact with the pool factory and the liquidity pools.

Installation and Deployment

To execute the project run the following commands:

forge build

Remeber that you need to modify .env file and configure smart contract addresses for the Sepolia Network. Alchemy and Infura are very popular service providers. To deploy the contracts to the Sepolia test network follow the next steps:

forge script script/Deploy.s.sol --rpc-url=$Sepolia-RPC-URL --broadcast --private-key $key

Now copy the smart contract addresses into the .env file. To create a sample liquidity pool and initialize it execute the following command:

forge script script/Initialize.s.sol --rpc-url=$Sepolia-RPC-URL --broadcast --private-key $key

After this step you created a new pool and you also added liquidity.

If you want to run tests based on the existing deployment, you can enter the following command.

forge test --fork-url $Sepolia-RPC-URL

These are the transaction details of swapping Uni and Dai test tokens on the Sepolia network.

Features

These are some of the most important features implemented:

• Swapping Token to Token
• Swapping Ether to Token.
• Create new pools.
• Add and remove liquidity.
• Manage shares.
• Implements the constant product model of UniswapV2.
• Allows swap of tokens with different number of decimals.
• Testing

Note

Please observe that these contracts are not ready for a production environment. It is necessary to add more functionality and testing.