How to Build a Decentralized Exchange (DEX) - Web3 Developer Tutorial

Video Description

In this video, learn how to build a basic DEX to swap between a custom ERC20 and a chains native token. Create and deploy a DEX smart contract and build a basic DEX web3 application to allow a user to easily swap between a specified token and native token. **Mumbai testnet support has been officially deprecated. Transition to the Amoy testnet for improved scalability and reduced gas fees.** GitHub repo: https://github.com/thirdweb-example/basic-dex-youtube Contract repo: https://github.com/thirdweb-example/dex-contracts ERC20 Contract: https://thirdweb.com/thirdweb.eth/TokenERC20/5.0.1 thirdweb Engine Docs: https://portal.thirdweb.com/engine/getting-started How to setup local thirdweb Engine: https://youtu.be/HfZ6uVqC9JY thirdweb API: https://thirdweb.com/dashboard/settings Creating an API: https://youtu.be/G3bvXfE-OMg thirdweb Docs: https://portal.thirdweb.com/ Join our Community of over 30,000 Web3 builders: https://discord.gg/thirdweb thirdweb Official Site: https://thirdweb.com/dashboard thirdweb Twitter: https://twitter.com/thirdweb Timestamps: 00:00 Demo of DEX 01:15 Overview of how to build a basic DEX 01:43 Deploy an ERC20 Token smart contract with thirdweb 03:40 Create a custom DEX contract with thirdweb 23:30 Deploy custom DEX smart contract 24:50 Set approval and add initial liquidity to DEX 27:10 Create and setup and new project with thirdweb 29:25 Create variables and functions for DEX app 43:30 Build a component for the swap input of the DEX app 48:15 Create DEX with swap input components 51:45 Add a swap button to execute swap with DEX app 54:58 Conclusion