196 lines
5.8 KiB
TypeScript
196 lines
5.8 KiB
TypeScript
import React, {useState} from 'react';
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import logo from './logo.svg';
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import './App.css';
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import Web3 from 'web3';
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import { WagmiConfig, createClient, configureChains, mainnet, useConnect, useAccount, useDisconnect } from 'wagmi'
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import { MetaMaskConnector } from 'wagmi/connectors/metaMask'
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import { publicProvider } from 'wagmi/providers/public'
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const web3 = new Web3(Web3.givenProvider);
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import Airdrop from "./Airdrop.json";
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import MagnaToken from "./MagnaToken.json";
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const magnaTokenAddress = "0x5FbDB2315678afecb367f032d93F642f64180aa3";
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const magnaTokenContract = new web3.eth.Contract(MagnaToken.abi as any, magnaTokenAddress);
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const airdropAddress = "0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512";
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const airdropContract = new web3.eth.Contract(Airdrop.abi as any, airdropAddress);
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const { chains, provider, webSocketProvider } = configureChains([mainnet], [publicProvider()]);
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const wagmiClient = createClient({
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autoConnect: true,
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connectors: [
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new MetaMaskConnector({ chains }),
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],
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provider,
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webSocketProvider,
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})
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function Profile() {
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const { connect, connectors, error, isLoading, pendingConnector } =
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useConnect()
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const { address, connector, isConnected } = useAccount()
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const { disconnect } = useDisconnect()
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if (isConnected) {
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const connectorName = connector?.name || "unknown connector";
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return (
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<div>
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<div>Connected to {connectorName} address: {address}</div>
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<button onClick={(_evt) => disconnect() }>Disconnect</button>
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</div>
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)
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}
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return (
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<div>
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<div>Connect to Airdrop App</div>
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{connectors.map((connector) => (
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<button
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disabled={!connector.ready}
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key={connector.id}
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onClick={() => connect({ connector })}
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>
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{connector.name}
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{!connector.ready && ' (unsupported)'}
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{isLoading &&
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connector.id === pendingConnector?.id &&
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' (connecting)'}
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</button>
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))}
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{error && <div>{error.message}</div>}
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</div>
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)
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}
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interface AddressesProps {
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addressList: string[];
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setAddressListFn: any;
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numTokens: number;
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setNumTokens: any;
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}
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function Addresses(props: AddressesProps) {
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const [inputState, setInputState] = useState("");
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const [errorText, setErrorText] = useState("");
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const { setAddressListFn, addressList, numTokens, setNumTokens } = props;
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const save = () => {
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if (!web3.utils.isAddress(inputState)) {
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setErrorText("Invalid ETH address");
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return;
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}
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setErrorText("");
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const checksumAddr = web3.utils.toChecksumAddress(inputState);
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if (addressList.includes(checksumAddr)) {
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//Do nothing
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} else {
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setAddressListFn([...addressList, checksumAddr]);
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}
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setInputState("");
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}
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var num;
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if (isNaN(numTokens) || numTokens < 0) {
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num = 0;
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} else {
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num = numTokens;
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}
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return (
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<div>
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<div>
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<input id="address" value={inputState} onChange={ (evt) => setInputState(evt.target.value) } ></input>
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<div className="addressError">{errorText}</div>
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<button onClick={save}>Add address</button>
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</div>
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<div>
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Number of tokens:
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<input type="numeric" value={num} onChange={ (evt) => setNumTokens(parseInt(evt.target.value)) }></input>
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</div>
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</div>
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);
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}
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interface AddressListProps {
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addressList: string[];
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};
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function AddressList({addressList}: AddressListProps) {
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const addresses = addressList.length == 0 ?
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<p>No addresses specified yet</p> :
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addressList.map((addr: string) => <div key={addr} className="addressItem">{addr}</div>);
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return (
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<div>
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<h2>Addresses to airdrop to: </h2>
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{ addresses }
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</div>
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)
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}
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function App() {
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const [addressList, setAddressList] = useState([]);
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const [numTokens, setNumTokens] = useState(0);
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const { address: ownerAddress, isConnected } = useAccount()
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async function performAirdrop() {
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console.log("Performing airdrop");
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const totalCoins = addressList.length * numTokens;
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console.log(`Owner ${ownerAddress} Airdrop ${airdropAddress}`);
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const oldbal = await magnaTokenContract.methods.balanceOf(addressList[0]).call({ from: ownerAddress });
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console.log(`Old balance of magna token for ${addressList[0]} is ${oldbal}`);
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const allowance = await magnaTokenContract.methods.allowance(ownerAddress, airdropAddress).call({ from: ownerAddress });
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console.log(`Allowance: ${allowance}`);
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if (allowance < totalCoins) {
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const output = await magnaTokenContract.methods.approve(airdropAddress, totalCoins).send({ from: ownerAddress });
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console.log(output);
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}
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const recipients = addressList;
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const amounts = addressList.map((_addr) => numTokens);
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const output = await airdropContract.methods.airdropTokens(recipients, amounts).send({ from: ownerAddress });
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console.log(output);
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const newbal = await magnaTokenContract.methods.balanceOf(addressList[0]).call({ from: ownerAddress });
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console.log(`New balance of magna token for ${addressList[0]} is ${newbal}`);
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}
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const airdropButtonDisabled = addressList.length == 0 || !isConnected;
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return (
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<WagmiConfig client={wagmiClient}>
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<div className="App">
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<Profile/>
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<h1>Airdrop App</h1>
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<p>Add an address to airdrop to:</p>
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<Addresses addressList={addressList} setAddressListFn={setAddressList} numTokens={numTokens} setNumTokens={setNumTokens}/>
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<button disabled={airdropButtonDisabled} onClick={performAirdrop} >Perform Airdrop!</button>
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<AddressList addressList={addressList} />
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</div>
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</WagmiConfig>
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);
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}
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export default App;
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