Dexterity

Decentralized Cryptocurrency Exchange with MetaMask Authentication ⛓️🌎🦊

📝About

Building towards a Decentralized Exchange (DEX) Web 3.0 dApp:

Solidity, Next.js, and Sanity.io.
Deployed to Ethereum mainnet via Alchemy endpoint
Integrated a full MetaMask wallet authentication, providing secure access to the platform 🔥

Useful tool to view live crypto prices as well as trade/swap between currencies without going through a centralized platform (like Coinbase, Robinhood, or everyone's favorite-- FTX).

This was a learning project so it's broken in some areas. It's also not meant to be a revolutionary work of art, go to Uniswap for that. It was merely practice for me as a developer to get my hands dirty with Web3 Javascript packages when I first began learning Solidity from YouTube. It was also a big learning gap initially for me as I was not familiar with authentication from the server-side on the browser, which was made even more complicated due to the nature of cryptographic hashes and private/public keys.

💻How to Build

Smart Contract Development via Solidity, Hardhat:
- Developed Solidity smart contracts in smart_contract/ to power the DEX
- Main contract, Transactions.sol, handles transaction execution.
- Used Solidity v0.8.4 for up-to-date standards.
- Hardhat- used to streamline contract deployment and testing.
- Automated contract deployment via deploy.js.
Ethereum Interaction via Web3.js, Ether.js:
- Web3.js and Ether.js in client/ for Ethereum interaction.
- Web3.js connects app to Ethereum node for data reading and transactions.
- Ether.js simplifies contract interaction and data querying.
- lib/Transactions.json communicates with deployed contract.
🔥 Wallet Authentication 🔥 via MetaMask:
- Integrated MetaMask in client/ for secure user authentication.
- Users access the platform with an Ethereum wallet
- MetaMask does its magic to enables smooth and secure transactions.
- Hardest part of project, very satisfying
Content Management System (CMS) via Sanity.io:
- studio/- CMS via Sanity.io
ETH Mainnet Interaction via Alchemy:
- Deployed "to the blockchain" i.e. the Ethereum mainnet (via Alchemy).
- Ethereum-Mainnet badge in README signifies the connection.
Styling and UI:
- Next.js frontend + Tailwind CSS for rapid UI development.

🚀Next Steps

Contributions and Open-Source License

Open-source project for learning and exploration.
Encouraging community contributions! Considering social tokens backed by proof-of-work mechanism

Cash App Integration?

Cash App integration to speed up fiat to crypto onboarding
Cash App already boasts large userbase of fiat defectors as many of those users lost trust / never gained the trust of the Big Banks, whch also repeteadly fail to adapt to mobile and web technologies
CEO Jack Dorsey has been pushing the boundaries of the fiat regulation box for years now, mainly through its grey status as a bank / fintech app / securities territory via its Bitcoin wallet integration and cashback-automatic-invest feature which allows cashback users receive to automically route to their BTC wallet.

Proof-of-Work?

Adding social tokens to user wallets as work is done on the Dexterity network, allowing open source work to be incentivized and leads to a better platform for everyone
Somewhere along these winding routes a DAO will spawn, still learning about that