Kudos - Give to get

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A full stack monorepo with

• React Native
• Nextjs
• Web3Auth
• Solidity
• Chainlink VRF
• Filecoin NFT.storage

built under The Chainlink 2022 Hackathon https://devpost.com/software/kudos-bzion8

Test Net Deploy:

LATEST KUDOS TOKEN CONTRACT ADDRESS (GOERLI): 0x67714a689C38BfEbe0aD191a349aB3084Df415A8

LATEST FAVORS CONTRACT ADDRESS (GOERLI): 0x693f7fe29CaE09F2110E9dA885769304e6f5cacE

Remix

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Mobile: https://exp.host/@jongan69/kudos

Web: https://kudos-taupe.vercel.app/sign-in

Setup

1. Create Web3Auth.io Account at https://dashboard.web3auth.io/
2. Copy into credentials .env and constant.js Note: WEB_API_ROUTES would be the URL of the deployed nextjs app ie: vercel
3. yarn install inside the root and web directories

For smart contract functionality

1. Receive Test Link from https://faucets.chain.link/
2. Create and Fund a VRF Subscription at https://vrf.chain.link/
3. Deploy the contracts/KudosToken.sol via https://remix.ethereum.org/ with a Total Token Supply
4. Copy Token Contract Address
5. Deploy the contracts/FavorsV2.sol via https://remix.ethereum.org/ with subscription ID and Token Contract Address
6. Add Favor Contract Address to .env file

Usage

yarn ios - Run iOS App

yarn android - Run Android App

yarn web - Start Nextjs app

Features

• Built using Web3auth
• Has nhost for Graph QL DB if needed
• Has Nextjs App for API
• File Reading Functions
• Has Smart Contract for Favor Posting, Retrieving, Completing, and payment

in a new .env backendUrl: "YOUR_NHOST_BACKEND_URL",

in App.js clientStorageType: "expo-secure-storage",

To Run Nextjs App: yarn web in root directory

To do

• Expo React Native App
• Nextjs App
• Web3Auth - React Native SDK
• Thirdwebjs Auth - Nextjs SDK
• ERC20 Contract
• Chainlink VRF
• FavorsV2 Contract
• Mobile App Smart Contract Function Integration: 1. Post Button => postFavor(text) 2. Refresh Favors Button => getAllIncompleteFavors() 3. Offers Tab => getMyFavors() 4. Accept Button => acceptFavor 5. Mark Completed Button => completeFavor(favorId)
• Fix Nextjs App (Connect to Deployed Contract)
• User Profile Contract / nHost
• Use React-Native-Async-Storage for Persistent Login State and Data
• Review +/- Test

Message Signing

const signMessage = async () => { try { setConsole("Signing message"); const ethersProvider = ethers.getDefaultProvider(providerUrl); const wallet = new ethers.Wallet(key, ethersProvider); const originalMessage = "YOUR_MESSAGE"; // Sign the message const signedMessage = await wallet.signMessage(originalMessage); console.log(signedMessage) } catch (e) { console.log(e) } };

Transaction Sending

const sendTransaction = async () => { try { setConsole("Sending transaction"); const ethersProvider = ethers.getDefaultProvider(providerUrl); const wallet = new ethers.Wallet(key, ethersProvider); const destination = "0x40e1c367Eca34250cAF1bc8330E9EddfD403fC56"; // Convert 1 ether to wei const amount = ethers.utils.parseEther("0.001"); // Submit transaction to the blockchain const tx = await wallet.sendTransaction({ to: destination, value: amount, maxPriorityFeePerGas: "5000000000", // Max priority fee per gas maxFeePerGas: "6000000000000", // Max fee per gas }); console.log(tx) } catch (e) { console.log(e) } };