Here is a DEX project I coded at Moralis Academy, following instructor Filip Martinsson. The project was coded in Solidity and most recently, I unit tested it using Hardaht and developed the Dapp using React, which I also learned at Moralis. After a young Moralis dev looked at my project, he made some suggenstions so I updated this Dapp, as it uses now Web3-React to create an account, signers and provider and I also re-factored the code, to create smaller components, which where missing. The Dapp has taking me a long time to develop and it's not perfect by any means.

There are issues with useEffect re-renders and a few other issues but overall, it works, except now, the widthraw ETH is not adding the ETH back to Metamask wallet. Regardles, I need to finish it and move on. Conversely, one can send tokens, receive, approve and buy and sell tokens using the DEX contract. I would have to send you some of my RealToken, RETK token or one can easily trade any other token like DAI or LINK.

Lastly, some kinks...it's not what I wanted by the connect button has to be clicked to updated the token balances. I set up a refresh button which clears up some of the re-renders but it also softly disconnects the Dapp from Metamask, hence the re-clicking of the connect button. The DEX might have to be refreshed the first time and then it should be fine