const ROUND_DOWN = 0; const CONTRACT_ABI = { wrappedTokenGatewayV3ABI: "https://raw.githubusercontent.com/corndao/aave-v3-bos-app/main/abi/WrappedTokenGatewayV3ABI.json", erc20Abi: "https://raw.githubusercontent.com/corndao/aave-v3-bos-app/main/abi/ERC20Permit.json", aavePoolV3ABI: "https://raw.githubusercontent.com/corndao/aave-v3-bos-app/main/abi/AAVEPoolV3.json", }; const DEFAULT_CHAIN_ID = 1442; const ETH_TOKEN = { name: "Ethereum", symbol: "ETH", decimals: 18 }; const MATIC_TOKEN = { name: "Matic", symbol: "MATIC", decimals: 18 }; // Get AAVE network config by chain id function getNetworkConfig(chainId) { const abis = { wrappedTokenGatewayV3ABI: fetch(CONTRACT_ABI.wrappedTokenGatewayV3ABI), erc20Abi: fetch(CONTRACT_ABI.erc20Abi), aavePoolV3ABI: fetch(CONTRACT_ABI.aavePoolV3ABI), }; switch (chainId) { case 1: // ethereum mainnet return { chainName: "Ethereum Mainnet", nativeCurrency: ETH_TOKEN, rpcUrl: "https://rpc.ankr.com/eth", aavePoolV3Address: "0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2", wrappedTokenGatewayV3Address: "0xD322A49006FC828F9B5B37Ab215F99B4E5caB19C", ...abis, }; case 42161: // arbitrum one return { chainName: "Arbitrum Mainnet", nativeCurrency: ETH_TOKEN, rpcUrl: "https://arb1.arbitrum.io/rpc", aavePoolV3Address: "0x794a61358D6845594F94dc1DB02A252b5b4814aD", wrappedTokenGatewayV3Address: "0xB5Ee21786D28c5Ba61661550879475976B707099", ...abis, }; case 137: // polygon mainnet return { chainName: "Polygon Mainnet", nativeCurrency: MATIC_TOKEN, rpcUrl: "https://rpc.ankr.com/polygon", aavePoolV3Address: "0x794a61358D6845594F94dc1DB02A252b5b4814aD", wrappedTokenGatewayV3Address: "0x1e4b7A6b903680eab0c5dAbcb8fD429cD2a9598c", ...abis, }; case 1442: // zkevm testnet return { chainName: "Polygon zkEVM Testnet", nativeCurrency: ETH_TOKEN, rpcUrl: "https://rpc.public.zkevm-test.net", aavePoolV3Address: "0x4412c92f6579D9FC542D108382c8D1d6D2Be63d9", wrappedTokenGatewayV3Address: "0xD82940E16D25aB1349914e1C369eF1b287d457BF", ...abis, }; default: throw new Error("unknown chain id"); } } function switchEthereumChain(chainId) { const chainIdHex = `0x${chainId.toString(16)}`; const res = Ethers.send("wallet_switchEthereumChain", [ { chainId: chainIdHex }, ]); // If `res` === `undefined`, it means switch chain failed, which is very weird but it works. // If `res` is `null` the function is either not called or executed successfully. if (res === undefined) { console.log( `Failed to switch chain to ${chainId}. Add the chain to wallet` ); const config = getNetworkConfig(chainId); Ethers.send("wallet_addEthereumChain", [ { chainId: chainIdHex, chainName: config.chainName, nativeCurrency: config.nativeCurrency, rpcUrls: [config.rpcUrl], }, ]); } } if ( state.chainId === undefined && ethers !== undefined && Ethers.send("eth_requestAccounts", [])[0] ) { Ethers.provider() .getNetwork() .then((data) => { const chainId = data?.chainId; if (chainId && chainId === DEFAULT_CHAIN_ID) { State.update({ chainId }); } else { switchEthereumChain(DEFAULT_CHAIN_ID); } }); } function isValid(a) { if (!a) return false; if (isNaN(Number(a))) return false; if (a === "") return false; return true; } // interface Market { // id: string, // underlyingAsset: string, // name: string, // symbol: string, // decimals: number, // } // returns Market[] function getMarkets(chainId) { return asyncFetch(`https://aave-api.pages.dev/${chainId}/markets`); } /** * @param {string} account user address * @param {string[]} tokens list of token addresses */ // interface TokenBalance { // token: string, // balance: string, // decimals: number, // } // returns TokenBalance[] function getUserBalances(chainId, account, tokens) { const url = `https://aave-api.pages.dev/${chainId}/balances?account=${account}&tokens=${tokens.join( "|" )}`; return asyncFetch(url); } // interface UserDeposit { // underlyingAsset: string, // name: string, // symbol: string, // scaledATokenBalance: string, // usageAsCollateralEnabledOnUser: boolean, // underlyingBalance: string, // underlyingBalanceUSD: string, // } // returns UserDeposit[] function getUserDeposits(chainId, address) { return asyncFetch( `https://aave-api.pages.dev/${chainId}/deposits/${address}` ); } // App config function getConfig(network) { const chainId = state.chainId; switch (network) { case "mainnet": return { ownerId: "aave-v3.near", nodeUrl: "https://rpc.mainnet.near.org", ipfsPrefix: "https://ipfs.near.social/ipfs", ...(chainId ? getNetworkConfig(chainId) : {}), }; case "testnet": return { ownerId: "aave-v3.testnet", nodeUrl: "https://rpc.testnet.near.org", ipfsPrefix: "https://ipfs.near.social/ipfs", ...(chainId ? getNetworkConfig(chainId) : {}), }; default: throw Error(`Unconfigured environment '${network}'.`); } } const config = getConfig(context.networkId); // App states State.init({ imports: {}, chainId: undefined, showWithdrawModal: false, showSupplyModal: false, walletConnected: false, assetsToSupply: undefined, yourSupplies: undefined, address: undefined, ethBalance: undefined, }); const loading = !state.assetsToSupply || !state.yourSupplies; // Import functions to state.imports function importFunctions(imports) { if (loading) { State.update({ imports, }); } } // Define the modules you'd like to import const modules = { number: `${config.ownerId}/widget/Utils.Number`, date: `${config.ownerId}/widget/Utils.Date`, data: `${config.ownerId}/widget/AAVE.Data`, }; // Import functions // const { formatAmount } = state.imports.number; // const { formatDateTime } = state.imports.date; function checkProvider() { const provider = Ethers.provider(); if (provider) { State.update({ walletConnected: true }); } else { State.update({ walletConnected: false }); } } // update data in async manner function updateData() { const provider = Ethers.provider(); if (!provider) { return; } provider .getSigner() ?.getAddress() ?.then((address) => { State.update({ address }); }); provider .getSigner() ?.getBalance() .then((balance) => State.update({ ethBalance: balance })); if (!state.address || !state.ethBalance) { return; } const prevYourSupplies = state.yourSupplies; getMarkets(state.chainId).then((marketsResponse) => { if (!marketsResponse) { return; } const markets = JSON.parse(marketsResponse.body); // get user balances getUserBalances( state.chainId, state.address, markets.map((market) => market.underlyingAsset) ).then((userBalancesResponse) => { if (!userBalancesResponse) { return; } const userBalances = JSON.parse(userBalancesResponse.body); const assetsToSupply = markets .map((market, idx) => { if (!isValid(userBalances[idx].decimals)) { return; } const balanceRaw = Big( market.symbol === "WETH" ? state.ethBalance : userBalances[idx].balance ).div(Big(10).pow(userBalances[idx].decimals)); const balance = balanceRaw.toFixed(7, ROUND_DOWN); const balanceInUSD = balanceRaw .mul(market.marketReferencePriceInUsd) .toFixed(3, ROUND_DOWN); return { ...userBalances[idx], ...market, balance, balanceInUSD, ...(market.symbol === "WETH" ? { symbol: "ETH", name: "Ethereum", } : {}), }; }) .sort((asset1, asset2) => { const balanceInUSD1 = Number(asset1.balanceInUSD); const balanceInUSD2 = Number(asset2.balanceInUSD); if (balanceInUSD1 !== balanceInUSD2) return balanceInUSD2 - balanceInUSD1; return asset1.symbol.localeCompare(asset2.symbol); }); State.update({ assetsToSupply, }); }); // get user supplies getUserDeposits(state.chainId, state.address).then( (userDepositsResponse) => { if (!userDepositsResponse) { return; } const userDeposits = JSON.parse(userDepositsResponse.body).filter( (row) => Number(row.underlyingBalance) !== 0 ); const marketsMapping = markets.reduce((prev, cur) => { prev[cur.symbol] = cur; return prev; }, {}); const yourSupplies = userDeposits.map((userDeposit) => { const market = marketsMapping[userDeposit.symbol]; return { ...market, ...userDeposit, ...(market.symbol === "WETH" ? { symbol: "ETH", name: "Ethereum", } : {}), }; }); State.update({ yourSupplies, }); if (JSON.stringify(prevYourSupplies) === JSON.stringify(yourSupplies)) { console.log("refresh again ...", prevYourSupplies, yourSupplies); setTimeout(updateData, 500); } } ); }); } function onActionSuccess({ msg, callback }) { // update data if action finishes updateData(); // update UI after data has almost loaded setTimeout(() => { if (callback) { callback(); } if (msg) { State.update({ alertModalText: msg }); } }, 5000); } checkProvider(); if (state.walletConnected && state.chainId && loading) { updateData(); } const Body = styled.div` padding: 24px 15px; background: #0e0e26; min-height: 100vh; color: white; `; const FlexContainer = styled.div` display: flex; justify-content: center; align-items: center; flex-direction: column; `; // Component body const body = loading ? ( <> <Widget src={`${config.ownerId}/widget/AAVE.Header`} props={{ config }} /> <Body> {state.walletConnected ? state.chainId === DEFAULT_CHAIN_ID ? "Loading..." : `Please switch network to ${ getNetworkConfig(DEFAULT_CHAIN_ID).chainName }` : "Need to connect wallet first."} </Body> </> ) : ( <> <Widget src={`${config.ownerId}/widget/AAVE.Header`} props={{ config }} /> <Body> <FlexContainer> <Widget src={`${config.ownerId}/widget/AAVE.NetworkSwitcher`} props={{ chainId: state.chainId, config, switchNetwork: (chainId) => { switchEthereumChain(chainId); }, disabled: true, }} /> </FlexContainer> <Widget src={`${config.ownerId}/widget/AAVE.TabSwitcher`} props={{ config }} /> <Widget src={`${config.ownerId}/widget/AAVE.Card.YourSupplies`} props={{ config, yourSupplies: state.yourSupplies, showWithdrawModal: state.showWithdrawModal, setShowWithdrawModal: (isShow) => State.update({ showWithdrawModal: isShow }), onActionSuccess, }} /> <Widget src={`${config.ownerId}/widget/AAVE.Card.AssetsToSupply`} props={{ config, chainId: state.chainId, assetsToSupply: state.assetsToSupply, showSupplyModal: state.showSupplyModal, setShowSupplyModal: (isShow) => State.update({ showSupplyModal: isShow }), onActionSuccess, }} /> {state.alertModalText && ( <Widget src={`${config.ownerId}/widget/AAVE.Modal.AlertModal`} props={{ config, title: "All done!", description: state.alertModalText, onRequestClose: () => State.update({ alertModalText: false }), }} /> )} </Body> </> ); return ( <div> {/* Component Head */} <Widget src={`${config.ownerId}/widget/Utils.Import`} props={{ modules, onLoad: importFunctions }} /> {/* Component Body */} {body} </div> );