generated from fauna-labs/fauna-labs
/
index.js
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/
index.js
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// Copyright Fauna, Inc.
// SPDX-License-Identifier: MIT-0
import Head from 'next/head'
import { useEffect, useState } from 'react'
import Cookies from 'js-cookie'
import Web3 from 'web3';
import Web3Token from 'web3-token';
import styles from '../styles/Home.module.css'
import faunadb, {
Get,
Paginate,
Documents,
Collection,
Lambda,
Map
} from 'faunadb';
export default function Home() {
const [isLoggedin, setLoggedin] = useState(false);
useEffect(() => {
const authToken = Cookies.get('fauna-auth');
if(authToken) {
setLoggedin(true)
}
}, []);
const login = async () => {
const web3 = new Web3(window.ethereum);
try {
const accounts = await window.ethereum.send(
"eth_requestAccounts"
)
console.log('accounts', accounts.result[0]);
const address = accounts.result[0];
const signed_msg = await Web3Token.sign(msg => web3.eth.personal.sign(msg, address), '1h');
const response = await fetch('api/user', {
method: 'POST',
body: JSON.stringify({
signed_msg
}),
});
if(response.status !== 200) {
return;
}
const { token } = await response.json();
const one_hour = new Date(new Date().getTime() + 3600 * 1000) // sign token for 1 hour
Cookies.set('fauna-auth', token, { expires: one_hour })
setLoggedin(true)
} catch (error) {
alert('Please Install Metamask Wallet')
return;
}
}
const logout = () => {
Cookies.remove('fauna-auth')
setLoggedin(false)
}
const queryData = async () => {
const authToken = Cookies.get('fauna-auth');
const faunaClient = new faunadb.Client({ secret: authToken });
const movies = await faunaClient.query(
Map(
Paginate(Documents(Collection('Movie'))),
Lambda(x => Get(x))
)
)
console.log('--->', movies);
}
return (
<>
<Head>
<title>My page title</title>
<meta name="viewport" content="initial-scale=1.0, width=device-width" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/uikit@3.9.2/dist/css/uikit.min.css" />
</Head>
<div className={styles.container}>
<main className={styles.main}>
{isLoggedin ? (
<>
<button
className="uk-button uk-button-default"
style={{ marginBottom: '10px' }}
onClick={queryData}
>
Query Data
</button>
<button className="uk-button uk-button-danger" onClick={logout}>Logout</button>
</>
) :
<button className="uk-button uk-button-primary uk-button-large" onClick={login}>Login with Metamask</button>
}
</main>
</div>
</>
)
}