manuelramirezio / disperseaurora

Disperse DAPP on Aurora Testnet

Disperse DAPP is a batching protocol for both native currency and ERC20 tokens that can help reduce gas cost for multiple transfers by batching them in a single block.

DAPP is live at https://blissful-tereshkova-0e2032.netlify.app/

Slides : https://docs.google.com/presentation/d/19wzOvgACY7dBTs_fTPHB9Llhplx8xCL5zqILMo2Cy7Q/edit#slide=id.gb59c7ace29_0_66

Demo Video : https://vimeo.com/679863822 [ No Audio ]

Contract Address : 0x30d25c739BF4859DC8C12c67E89954824bfb39FE [on AURORA Testnet]

MIT License

Installation and Tests

Backend (Truffle)

Use .secret file to store mnemonic or make suitable changes to truffle-config.js

npm install truffle-hdwallet-provider @openzeppelin/[email protected] To install dependencies

truffle test to run tests. (You may have to install ganache-cli)

truffle migrate --reset --network aurora to migrate to the Aurora testnet.

Frontend (create-react-app)

yarn install

yarn start

Documentation

This DAPP is based on Artem K's disperse app on ethereum. (PDF Link)

My contract is compatible with solidity 0.5.x (and higher). It is available here.

To batch together native currency.

function disperseEther(address payable[] calldata recipients, uint256[] calldata values) external payable

recipients is an array of addresses and the values is the array of amount that is being send to each of the addresses respectively.

To batch together ERC20 tokens.

function disperseToken(address tokenAddress, address payable[] calldata recipients, uint256[] calldata values) external

tokenAddress is the contract address of the ERC20 contract. The other values are same as above.

There is also a simplified and unoptimized version of disperseToken that we won't be using for our dapp.

function disperseTokenSimple(address tokenAddress, address payable[] calldata recipients, uint256[] calldata values) external