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@@ -40,3 +40,4 @@ yarn-error.log* | |
| .DS_Store | ||
| Thumbs.db | ||
| api-doc.json | ||
| example/build | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,11 +1,190 @@ | ||
| import React, { FC } from 'react'; | ||
| import Form from './Form'; | ||
| import StarknetProvider from './StarknetProvider'; | ||
|
|
||
| const App: FC = () => ( | ||
| <StarknetProvider> | ||
| <Form /> | ||
| </StarknetProvider> | ||
| ); | ||
| import { FC, useCallback, useEffect, useState } from 'react'; | ||
| import { | ||
| executeCalls, | ||
| fetchAccountCompatibility, | ||
| fetchAccountsRewards, | ||
| fetchGasTokenPrices, | ||
| GaslessCompatibility, | ||
| GaslessOptions, | ||
| GasTokenPrice, | ||
| getGasFeesInGasToken, | ||
| PaymasterReward, | ||
| SEPOLIA_BASE_URL, | ||
| } from '@avnu/gasless-sdk'; | ||
| import { formatUnits } from 'ethers'; | ||
| import { connect } from 'get-starknet'; | ||
| import { Account, AccountInterface, Call, EstimateFeeResponse, Provider, stark, transaction } from 'starknet'; | ||
|
|
||
| const options: GaslessOptions = { baseUrl: SEPOLIA_BASE_URL }; | ||
| const NODE_URL = 'https://starknet-sepolia.public.blastapi.io'; | ||
| const initialValue: Call[] = [ | ||
| { | ||
| entrypoint: 'approve', | ||
| contractAddress: '0x049d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7', | ||
| calldata: ['0x0498E484Da80A8895c77DcaD5362aE483758050F22a92aF29A385459b0365BFE', '0xf', '0x0'], | ||
| }, | ||
| ]; | ||
| const isValidJSON = (str: string): boolean => { | ||
| try { | ||
| JSON.parse(str); | ||
| return true; | ||
| } catch (e) { | ||
| return false; | ||
| } | ||
| }; | ||
|
|
||
| const App: FC = () => { | ||
| const [account, setAccount] = useState<Account>(); | ||
| const [loading, setLoading] = useState(false); | ||
| const [tx, setTx] = useState<string>(); | ||
| const [paymasterRewards, setPaymasterRewards] = useState<PaymasterReward[]>([]); | ||
| const [calls, setCalls] = useState(JSON.stringify(initialValue, null, 2)); | ||
| const [gasTokenPrices, setGasTokenPrices] = useState<GasTokenPrice[]>([]); | ||
| const [gasTokenPrice, setGasTokenPrice] = useState<GasTokenPrice>(); | ||
| const [maxGasTokenAmount, setMaxGasTokenAmount] = useState<bigint>(); | ||
| const [gaslessCompatibility, setGaslessCompatibility] = useState<GaslessCompatibility>(); | ||
| const [errorMessage, setErrorMessage] = useState<string>(); | ||
|
|
||
| const handleConnect = async () => { | ||
| const starknet = await connect({ modalMode: 'alwaysAsk' }); | ||
| if (!starknet) return; | ||
| await starknet.enable(); | ||
| if (starknet.isConnected && starknet.provider && starknet.account.address) { | ||
| setAccount(starknet.account); | ||
| } | ||
| }; | ||
|
|
||
| useEffect(() => { | ||
| if (!account) return; | ||
| fetchAccountCompatibility(account.address, options).then(setGaslessCompatibility); | ||
| fetchAccountsRewards(account.address, { ...options, protocol: 'gasless-sdk' }).then(setPaymasterRewards); | ||
| }, [account]); | ||
|
|
||
| // The account.estimateInvokeFee doesn't work... | ||
| const estimateCalls = useCallback( | ||
| async (account: AccountInterface, calls: Call[]): Promise<EstimateFeeResponse> => { | ||
| const provider = new Provider({ nodeUrl: NODE_URL }); | ||
| const contractVersion = await provider.getContractVersion(account.address); | ||
| const nonce = await provider.getNonceForAddress(account.address); | ||
| const details = stark.v3Details({ skipValidate: true }); | ||
| const invocation = { | ||
| ...details, | ||
| contractAddress: account.address, | ||
| calldata: transaction.getExecuteCalldata(calls, contractVersion.cairo), | ||
| signature: [], | ||
| }; | ||
| return provider.getInvokeEstimateFee(invocation, { ...details, nonce, version: 1 }, 'pending', true); | ||
| }, | ||
| [account], | ||
| ); | ||
|
|
||
| // Retrieve estimated gas fees | ||
| useEffect(() => { | ||
| if (!account || !gasTokenPrice || !gaslessCompatibility) return; | ||
| setErrorMessage(undefined); | ||
| if (!isValidJSON(calls)) { | ||
| setErrorMessage('Invalid calls'); | ||
| return; | ||
| } | ||
| const parsedCalls: Call[] = JSON.parse(calls); | ||
| estimateCalls(account, parsedCalls).then((fees) => { | ||
| const estimatedGasFeesInGasToken = getGasFeesInGasToken( | ||
| BigInt(fees.overall_fee), | ||
| gasTokenPrice, | ||
| BigInt(fees.gas_price!), | ||
| BigInt(fees.data_gas_price ?? '0x1'), | ||
| gaslessCompatibility.gasConsumedOverhead, | ||
| gaslessCompatibility.dataGasConsumedOverhead, | ||
| ); | ||
| setMaxGasTokenAmount(estimatedGasFeesInGasToken * BigInt(2)); | ||
| }); | ||
| }, [calls, account, gasTokenPrice, gaslessCompatibility, estimateCalls]); | ||
|
|
||
| const onClickExecute = async () => { | ||
| if (!account) return; | ||
| setLoading(true); | ||
| setTx(undefined); | ||
| return executeCalls( | ||
| account, | ||
| JSON.parse(calls), | ||
| { | ||
| gasTokenAddress: gasTokenPrice?.tokenAddress, | ||
| maxGasTokenAmount, | ||
| }, | ||
| options, | ||
| ) | ||
| .then((response) => { | ||
| setTx(response.transactionHash); | ||
| setLoading(false); | ||
| }) | ||
| .catch((error) => { | ||
| setLoading(false); | ||
| console.error(error); | ||
| }); | ||
| }; | ||
|
|
||
| useEffect(() => { | ||
| fetchGasTokenPrices(options).then(setGasTokenPrices); | ||
| }, []); | ||
|
|
||
| if (!account) { | ||
| return <button onClick={handleConnect}>Connect Sepolia Wallet</button>; | ||
| } | ||
|
|
||
| return ( | ||
| <div> | ||
| <p>Connected with account: {account.address}</p> | ||
| <p>Execute tx:</p> | ||
| <textarea | ||
| value={calls} | ||
| onChange={(e) => setCalls(e.target.value)} | ||
| style={{ minHeight: '500px', minWidth: '1000px' }} | ||
| /> | ||
| <div> | ||
| <p> | ||
| <strong>Paymaster rewards</strong> | ||
| </p> | ||
| {paymasterRewards.length == 0 ? <p>No reward</p> : <p>{JSON.stringify(paymasterRewards)}</p>} | ||
| </div> | ||
| <div> | ||
| <p> | ||
| <strong>Gas tokens</strong> | ||
| </p> | ||
| {paymasterRewards.length > 0 ? ( | ||
| <p>No gas fees to pay. You have a reward.</p> | ||
| ) : ( | ||
| gasTokenPrices.map((price) => ( | ||
| <button | ||
| disabled={price.tokenAddress === gasTokenPrice?.tokenAddress} | ||
| onClick={() => setGasTokenPrice(price)} | ||
| > | ||
| {price.tokenAddress} | ||
| </button> | ||
| )) | ||
| )} | ||
| </div> | ||
| {tx && ( | ||
| <a href={`https://sepolia.voyager.online/tx/${tx}`} target={'_blank'} rel='noreferrer'> | ||
| Success:{tx} | ||
| </a> | ||
| )} | ||
| {errorMessage && <p style={{ color: 'red' }}>{errorMessage}</p>} | ||
| {paymasterRewards.length == 0 && !gasTokenPrice && <p>Select a gas token</p>} | ||
| {maxGasTokenAmount !== undefined && gasTokenPrice !== undefined && ( | ||
| <p>Max gas fees in gas token: {formatUnits(maxGasTokenAmount, gasTokenPrice.decimals)}</p> | ||
| )} | ||
| <div> | ||
| {account && ( | ||
| <button | ||
| disabled={!isValidJSON(calls) || loading || (!gasTokenPrice && paymasterRewards.length == 0)} | ||
| onClick={onClickExecute} | ||
| > | ||
| {loading ? 'Loading' : 'Execute'} | ||
| </button> | ||
| )} | ||
| </div> | ||
| </div> | ||
| ); | ||
| }; | ||
|
|
||
| export default App; |
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