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App.tsx
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App.tsx
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/**
* Sample React Native App
* https://github.com/facebook/react-native
*
* @format
*/
import React from 'react';
import type { PropsWithChildren } from 'react';
import {
SafeAreaView,
ScrollView,
StatusBar,
StyleSheet,
Text,
useColorScheme,
View,
Button
} from 'react-native';
import {
Colors,
DebugInstructions,
LearnMoreLinks,
ReloadInstructions,
} from 'react-native/Libraries/NewAppScreen';
type SectionProps = PropsWithChildren<{
title: string;
}>;
import Config from './config.json'
import crypto from 'react-native-quick-crypto';
import { ethers } from "ethers";
import { LinkdropP2P } from 'linkdrop-p2p-sdk'
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
function Section({ children, title }: SectionProps): JSX.Element {
const isDarkMode = useColorScheme() === 'dark';
return (
<View style={styles.sectionContainer}>
<Text
style={[
styles.sectionTitle,
{
color: isDarkMode ? Colors.white : Colors.black,
},
]}>
{title}
</Text>
<Text
style={[
styles.sectionDescription,
{
color: isDarkMode ? Colors.light : Colors.dark,
},
]}>
{children}
</Text>
</View>
);
}
const API_KEY = Config.API_KEY
const BASE_URL = Config.BASE_URL
const SENDER_PK = Config.SENDER_PK
const JSON_RPC_URL = Config.JSON_RPC_URL
const USDC_ADDRESS = Config.USDC_ADDRESS
const CHAIN_ID = Config.CHAIN_ID
const sdk = new LinkdropP2P({ apiKey: API_KEY, baseUrl: BASE_URL })
const signer = new ethers.Wallet(SENDER_PK)
const provider = new ethers.JsonRpcProvider(JSON_RPC_URL)
const wallet = new ethers.Wallet(SENDER_PK, provider)
const signTypedData = async (domain, types, message) => {
const signature = await signer.signTypedData(domain, types, message)
return signature
}
const sendTransaction = async ({ to, value, gasLimit, data }) => {
const tx = await wallet.sendTransaction({ to, value, gasLimit, data })
return { hash: tx.hash }
}
const getRandomBytes = (length) => {
const randBytes = new Uint8Array(crypto.randomBytes(length))
return randBytes
}
const redeem = async (url, dest) => {
console.log(`Redeeming url: ${url}`)
const claimLinkToRedeem = await sdk.getClaimLink(url)
console.log(claimLinkToRedeem)
console.log("redeeming..")
const redeemTxHash = await claimLinkToRedeem.redeem(dest)
console.log({ redeemTxHash })
let confirmed = false
while (!confirmed) {
const { status, operations } = await claimLinkToRedeem.getStatus()
console.log({ status, operations })
confirmed = status == "redeemed"
if (!confirmed) {
await sleep(1000)
}
}
}
const generateUSDCLink = async (amount, recover = false) => {
const from = signer.address.toLowerCase() // Sender's Ethereum address
const token = USDC_ADDRESS // token contract address
const tokenType = "ERC20" // one of "NATIVE" | "ERC20"
const chainId = CHAIN_ID // network chain ID
const expiration = String(Math.floor(Date.now() / 1000) + 60 * 60 * 24 * 30); // 30 days from now
let claimLink = await sdk.createClaimLink({ from, token, amount, expiration, chainId, tokenType })
console.log("Claim link inited")
console.log({ claimLink, from })
console.log("depositing..")
try {
let { claimUrl, transferId, txHash } = await claimLink.depositWithAuthorization({ signTypedData, getRandomBytes })
console.log({ txHash, claimUrl, transferId })
if (recover) {
console.log("Recovering claim URL")
claimLink = await sdk.retrieveClaimLink({ chainId, txHash: txHash.toLowerCase() })
console.log({ claimLink })
const { claimUrl: newClaimUrl, transferId: newTransferId } = await claimLink.generateClaimUrl({ signTypedData, getRandomBytes })
console.log({ newClaimUrl, newTransferId })
claimUrl = newClaimUrl
}
let confirmed = false
while (!confirmed) {
const { status, operations } = await claimLink.getStatus()
console.log({ status, operations })
confirmed = status == "deposited"
if (!confirmed) {
await sleep(1000)
}
}
console.log("confirmed deposited")
const dest = from
await redeem(claimUrl, dest)
} catch (err) {
console.log("error:")
console.log(err)
throw new Error("Error while testing")
}
}
const generateETHLink = async (amount, recover = false) => {
const from = signer.address.toLowerCase()
const token = ethers.ZeroAddress // token contract address
const tokenType = "NATIVE" // one of "NATIVE" | "ERC20"
const chainId = CHAIN_ID // network chain ID
const expiration = String(Math.floor(Date.now() / 1000) + 60 * 60 * 24 * 30); //30 days from now
let claimLink = await sdk.createClaimLink({ from, token, amount, expiration, chainId, tokenType })
console.log("Claim link inited")
console.log("depositing..")
try {
let { claimUrl, transferId, txHash } = await claimLink.deposit({ sendTransaction, getRandomBytes })
console.log({ txHash, claimUrl, transferId })
// regenerating link
if (recover) {
console.log("Recovering claim URL")
claimLink = await sdk.retrieveClaimLink({ chainId, txHash })
console.log({ claimLink })
let { claimUrl: newClaimUrl, transferId: newTransferId } = await claimLink.generateClaimUrl({ signTypedData, getRandomBytes })
console.log({ newClaimUrl, newTransferId })
claimUrl = newClaimUrl
}
let confirmed = false
while (!confirmed) {
const { status, operations } = await claimLink.getStatus()
console.log({ status, operations })
confirmed = status == "deposited"
if (!confirmed) {
await sleep(1000)
}
}
console.log("confirmed deposited")
const dest = from
await redeem(claimUrl, dest)
} catch (err) {
console.log("error:")
console.log(err)
throw new Error("Error while testing")
}
}
function App(): JSX.Element {
const isDarkMode = useColorScheme() === 'dark';
const backgroundStyle = {
backgroundColor: isDarkMode ? Colors.darker : Colors.lighter,
};
return (
<SafeAreaView style={backgroundStyle}>
<ScrollView
contentInsetAdjustmentBehavior="automatic"
style={backgroundStyle}>
<View
style={{
backgroundColor: isDarkMode ? Colors.black : Colors.white,
}}>
<Section title="Generate USDC Link and claim it">
<Button
title="Generate USDC Link and claim"
onPress={() => generateUSDCLink("1000000")}
/>
</Section>
<Section title="Generate ETH Link and claim it">
<Button
title="Generate ETH Link and claim"
onPress={() => generateETHLink("1100000000000000")}
/>
</Section>
<Section title="Generate USDC Link, recover and claim it">
<Button
title="Generate USDC Link, recover and claim"
onPress={() => generateUSDCLink("1000000", true)}
/>
</Section>
<Section title="Generate ETH Link, recover and claim it">
<Button
title="Generate ETH Link, recover and claim"
onPress={() => generateETHLink("1100000000000000", true)}
/>
</Section>
</View>
</ScrollView>
</SafeAreaView>
);
}
const styles = StyleSheet.create({
sectionContainer: {
marginTop: 32,
paddingHorizontal: 24,
},
sectionTitle: {
fontSize: 24,
fontWeight: '600',
},
sectionDescription: {
marginTop: 8,
fontSize: 18,
fontWeight: '400',
},
highlight: {
fontWeight: '700',
},
});
export default App;