NFTHashi 2022 Web3 Inifinity Hackathon Edition

Submit

https://devpost.com/software/vnfts

Works

Deployed Contract

All contracts are kept here and verified in etherscan https://github.com/nfthashi/2022-Web3Infinity-submission/blob/main/packages/contracts/networks.json

Following are the main contract developped in this hackathon.

• Hanlder

  • https://rinkeby.etherscan.io/address/0x1F506545E846a613f78FD8493544fc6676a9E251#code

• Executor

  • https://rinkeby.etherscan.io/address/0x4c0e868594D621Ed81F2dC2071e5B0066D384b33#code

• This is to extende Connext bridge to support IPFS multichain storage

Replayer

• IPFS content integrity verifier in cross-chain messaging relayer

  • https://github.com/nfthashi/2022-Web3Infinity-submission/blob/main/packages/frontend/src/lib/relayer/index.ts#L83-L100

• IPFS add by NFT Storage

  • https://github.com/nfthashi/2022-Web3Infinity-submission/blob/main/packages/frontend/src/lib/storage/index.ts#L18-L22

How it Works

We added the IPFS metadata uploading function and add-on logic for content verification for the cross-chain messaging relayer.

Relayer is called via github actions cron for simple development for this hackathon

How we built it

We use NFT storage to access IPFS and use Connext cross-chain messaging.

Development Principle

• make it stupid simple
• no monorepo integration for packages, leave it as separated package
• minimum code linting fixing

Frontend

• No atomic design, just simple components
• Mainly use Chakra UI, use MUI if specific component is required, use tailwind for custom design

Running in Local

Contract

cd packages/contracts
yarn test

Frontend

// build contracts package first
cd packages/frontend
yarn dev