DEX (from learnweb3.io)

Things that I've learned..

• Built an exchange with only one asset pair ($ETH<>$CD (Crypto Dev tokens))
• The Decentralized Exchange take a fee of 1% on swaps
• When users add liquidity, they are given (Crypto Dev LP) tokens
• Used Hardhat for smart contract deployment, as well as importing Openzeppelin's ERC20 Contract
• Got API keys from Alchemy and Rinkeby Faucet
• npm install Web3Modal library in order to connect DeFI dApp to the Metamask wallet
• Wrote some code like "addliquidity.js", "removeliquidity.js", "swap.js", etc..

Here's a screenshot of the DeFi DEX that I've built..