Donation Station

ETHGlobal Lisbon 2023

ETHGlobal Lisbon 2023 Hackathon project

This Repository consist of three major parts:

1. extension
   • contains a chrome browser extension that manipulates the UI of twitter
2. website
   • a blank website that is hosted through github pages and handles wallet connections
3. contracts
   • the tipping contract that is deployed as a temporary gitcoin round implementation

Directory Structure

.
├── .github                     
├── contracts               # contract that is deployed on multiple chains
│   ├── contracts                  
│       ├── interfaces                  
│       ├── libs                  
│       ├── donate.sol               
│   ├── deploy         
│       ├── deploy.ts   
│   ├── hardhat.config.js       
│   ├── package.json       
├── extension               # extension material      
│   ├── buildResults                
│       ├── chromium        # load this folder to run extension locally       
│   ├── src                 
│       ├── chromium        # Holds chrome specific files (content scripts, manifest, service worker)        
│       ├── common          # In preparation of adding firefox support, this holds general files needed by the extension
│   ├── package.json      
│   ├── webpack.config.js      
├── website                 # simple website setup to host transaction handling
│   ├── dist     
│       ├── bundle.js     
│   ├── index.html     
│   ├── index.js     
│   ├── package.json     
│   ├── utils.js     
│   ├── webpack.config.js     
├── .gitignore             
└── README.md

To use the extension locally, load the chromium folder into your local extensions here: brave://extensions/ You can also build it with

yarn
yarn build

The website is hosted on https://lennardevertz.github.io/ethLisbon2023/website/. Note that it is just a blank html that runs a script. You can also build it with

yarn
yarn build

The contract is a tipping / donations contract. It can handle Native token and ERC20 transfers.

These are contracts that are created/deployed.

Contract	Address
Linea	0x31A9021E79620fd95d4835b062f12c91b789A31b
Polygon zkEVM	0x31A9021E79620fd95d4835b062f12c91b789A31b
Optimism	0x7304b437221Cc0477F805Bdfb1C571e762cE528a
Optimism Testnet	0x31A9021E79620fd95d4835b062f12c91b789A31b
Scroll	0x31A9021E79620fd95d4835b062f12c91b789A31b
Mantle	0x31A9021E79620fd95d4835b062f12c91b789A31b

Tech Stack used

For contract development and deployment

• Hardhat
• Truffle Dashboard
• The Optimism contract natively integrates the Attestation Station, which attest donations on-chain and fully automated
• inspiration from IDriss open source tipping contract

For Website (including in the script)

• Github Pages
• webpack compiler

For Extension

• IDriss (Twitter ID lookup)
• webpack compiler

Other

• I am using Chainlink price feeds to get the current price of ETH.
• Contracts deployed on Optimism Mainnet + Testnet, Polygon zkEVM testnet, Linea, Mantle and Scroll (see links in above table)
• Optimism contracts implement AttestationStation v1 contract and attests a that the donor is a public goods supporter