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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Spheron dApp</title>
<style>
body {
text-align: center;
font-family: Arial, Helvetica, sans-serif;
}
div {
width: 20%;
margin: 0 auto;
display: flex;
flex-direction: column;
}
button {
width: 100%;
margin: 10px 0px 5px 0px;
}
</style>
</head>
<body>
<div>
<h1>This is my dApp!</h1>
<p>Here we can set or get the mood:</p>
<label for="mood">Input Mood:</label> <br />
<input type="text" id="mood" />
<button onclick="getMood()">Get Mood</button>
<button onclick="setMood()">Set Mood</button>
<p id="showMood"></p>
</div>
<script
src="https://cdn.ethers.io/lib/ethers-5.7.2.umd.min.js"
type="application/javascript"
></script>
<script>
const MoodContractAddress = "<Place Your Contract Address>";
const MoodContractABI = [
{
"inputs": [
{
"internalType": "string",
"name": "_mood",
"type": "string",
},
],
"name": "setMood",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function",
},
{
"inputs": [],
"name": "getMood",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string",
},
],
"stateMutability": "view",
"type": "function",
},
];
let MoodContract = undefined;
let signer = undefined;
// Creating a Web3Provider instance to connect to the Ethereum blockchain.
// It uses the "window.ethereum" object for the connection and specifies the network as "sepolia."
const provider = new ethers.providers.Web3Provider(
window.ethereum,
"sepolia"
);
// Requesting user's Ethereum account access using the Ethereum provider.
provider.send("eth_requestAccounts", []).then(() => {
// Once account access is granted, list the available Ethereum accounts.
provider.listAccounts().then((accounts) => {
// Assign the signer (account) to interact with smart contracts.
signer = provider.getSigner(accounts[0]);
// Create an instance of the MoodContract to interact with it.
MoodContract = new ethers.Contract(
MoodContractAddress,
MoodContractABI,
signer
);
});
});
async function getMood() {
const mood = await MoodContract.getMood();
document.getElementById("showMood").innerText = `Your Mood: ${mood}`;
console.log(mood);
}
async function setMood() {
const mood = document.getElementById("mood").value;
await MoodContract.setMood(mood);
}
</script>
</body>
</html>