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# Writing Contract Example | ||
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[![Open in StackBlitz](https://developer.stackblitz.com/img/open_in_stackblitz.svg)](https://stackblitz.com/github.com/iosh/cive/tree/main/examples/contracts_writing_contract) |
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<!DOCTYPE html> | ||
<html lang="en"> | ||
<head> | ||
<meta charset="UTF-8" /> | ||
<meta name="viewport" content="width=device-width, initial-scale=1.0" /> | ||
</head> | ||
<body> | ||
<h1 class="title has-text-centered">Writing Contract Example</h1> | ||
<div class="container" id="app">Loading...</div> | ||
<script type="module"> | ||
import './index.tsx'; | ||
</script> | ||
</body> | ||
</html> |
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import React from 'react' | ||
import ReactDOM from 'react-dom/client' | ||
import App from './src/App' | ||
import 'bulma/css/bulma.css' | ||
ReactDOM.createRoot(document.getElementById('app') as HTMLElement).render( | ||
<React.StrictMode> | ||
<App /> | ||
</React.StrictMode>, | ||
) |
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{ | ||
"name": "contracts_writing_contract", | ||
"private": true, | ||
"type": "module", | ||
"scripts": { | ||
"dev": "vite" | ||
}, | ||
"dependencies": { | ||
"bulma": "^1.0.2", | ||
"cive": "latest", | ||
"react": "^18.3.1", | ||
"react-dom": "^18.3.1" | ||
}, | ||
"devDependencies": { | ||
"@types/react": "^18.3.8", | ||
"@types/react-dom": "^18.3.0", | ||
"@vitejs/plugin-react": "^4.3.1", | ||
"typescript": "^5.6.2", | ||
"vite": "^5.4.4" | ||
} | ||
} |
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import { | ||
http, | ||
createPublicClient, | ||
createWalletClient, | ||
custom, | ||
Address, | ||
Hash, | ||
WaitForTransactionReceiptReturnType, | ||
WaitForTransactionReceiptErrorType, | ||
SimulateContractErrorType, | ||
} from 'cive' | ||
import { mainnet, testnet } from 'cive/chains' | ||
import { useCallback, useState } from 'react' | ||
import 'cive/window' | ||
import contract from './contract' | ||
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const CONTRACT_ADDRESS = 'cfxtest:acfrcwu7yn4ysjybux326my6a743zw2zwjps5had1g' | ||
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const client = createPublicClient({ | ||
chain: testnet, | ||
transport: http(), | ||
}) | ||
const walletClient = createWalletClient({ | ||
chain: testnet, | ||
transport: custom(window.fluent!), | ||
}) | ||
export default function App() { | ||
const [account, setAccount] = useState<Address>() | ||
const [hash, setHash] = useState<Hash>() | ||
const [receipt, setReceipt] = useState<WaitForTransactionReceiptReturnType>() | ||
const [error, setError] = useState<string>() | ||
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const connect = useCallback(async () => { | ||
const [address] = await walletClient.requestAddresses() | ||
setAccount(address) | ||
}, []) | ||
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const mint = useCallback(async () => { | ||
setError('') | ||
if (!account) return | ||
try { | ||
const { request } = await client.simulateContract({ | ||
account, | ||
address: CONTRACT_ADDRESS, | ||
abi: contract.abi, | ||
functionName: 'mint', | ||
args: [account, 1n * 10n ** 18n], | ||
}) | ||
// writeContract before simulateContract first | ||
const hash = await walletClient.writeContract(request) | ||
setHash(hash) | ||
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client | ||
.waitForTransactionReceipt({ hash, retryCount: 11 }) | ||
.then((receipt) => { | ||
setReceipt(receipt) | ||
}) | ||
} catch (e: unknown) { | ||
const err = e as | ||
| WaitForTransactionReceiptErrorType | ||
| SimulateContractErrorType | ||
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setError(err.name) | ||
} | ||
}, [account]) | ||
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return ( | ||
<div className="box"> | ||
<div className="column"> | ||
{account ? ( | ||
<div className="columns is-3 is-flex-direction-column"> | ||
<span>Account: {account}</span> | ||
<div className="column"> | ||
<div className="is-flex is-align-items-center"> | ||
<button className="button" onClick={mint}> | ||
Mint to self | ||
</button> | ||
<span className="is-size-5">result: </span> | ||
</div> | ||
</div> | ||
<div className="column"> | ||
<div className="is-flex is-align-items-center"> | ||
<span className="is-size-5"> | ||
{hash ? `transaction hash : ${hash}` : ''} | ||
</span> | ||
</div> | ||
</div> | ||
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{hash && ( | ||
<div className="column"> | ||
<div className="is-flex is-align-items-center"> | ||
<span className="is-size-5"> | ||
wait for transaction receipt | ||
</span> | ||
</div> | ||
</div> | ||
)} | ||
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{receipt && ( | ||
<div> | ||
<p className="is-size-5">Transaction receipt:</p> | ||
<table className="table"> | ||
<thead> | ||
<tr> | ||
<th>#</th> | ||
<th>Key</th> | ||
<th>Value</th> | ||
</tr> | ||
</thead> | ||
<tbody> | ||
{receipt && | ||
Object.entries(receipt).map(([key, value], idx) => ( | ||
<tr key={key}> | ||
<td>{idx}</td> | ||
<td>{key}</td> | ||
<td>{`${value}`}</td> | ||
</tr> | ||
))} | ||
</tbody> | ||
</table> | ||
</div> | ||
)} | ||
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{error && ( | ||
<div className="column"> | ||
<p>Error: {error}</p> | ||
</div> | ||
)} | ||
</div> | ||
) : ( | ||
<button className="button" onClick={connect}> | ||
Connect Wallet | ||
</button> | ||
)} | ||
</div> | ||
</div> | ||
) | ||
} |
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