Building a Simple Swap
AMM mechanics.
Goal: A Minimal AMM Swap
In this lesson we sketch a minimal constant-product swap contract in Solidity to see how the formula becomes code.
We keep it simple to focus on mechanics, not production safety.
Pool State
Our contract tracks two token reserves and the LP token supply. These three values fully describe the pool.
contract SimpleSwap {
IERC20 public tokenA;
IERC20 public tokenB;
uint public reserveA;
uint public reserveB;
uint public totalShares;
}All lessons in this course
- DeFi Overview
- Automated Market Makers
- Liquidity Pools
- Building a Simple Swap