Ethereum: Invalid API key Sepolia Network Blockscout
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Verify Coin Transactions on the Seolia Network Using Hardhat
As a developer, you are probably familiar with the Ethereum blockchain and its various APIs. Recently, you deployed a smart contract on the Seolia network, a decentralized platform for issuing and trading cryptocurrency assets. However, before making any transactions, it is essential to ensure that your account is valid and compliant with the network’s regulations.
In this article, we will guide you through the process of verifying your coin and interacting with the Seolia API key using the Hardhat toolkit.
Setting up the environment
To get started, you must have the following dependencies installed:
hardhat: Node.js package manager for Ethereum development
npx: Shorthand notation for running npm scripts with Node.js
ethers.js: A library that provides a simple way to interact with the Ethereum blockchain
First, install the required packages:
npm install --save-dev hardhat ethers
Deploying the contract on Seolia
Before you can verify your coin, you need to deploy your contract on the Seolia network. You can do this using Hardhat’s deploy function:
// seolia.js (example contract)
const ethers = require('ethers');
contract('ExampleContract', {
async deploy() {
const provider = new ethers.providers.Web3Provider(window.ethereum);
const wallet = await provider.get signer();
// Deploy the contract and get its address
const tx = await wallet.deployed(
'
{ data: 'YOUR_CONTRACT_DATA' }
);
const deployAddress = tx.hash;
console.log(Contract deployed to: ${deployAddress});
},
});
ReplaceYOUR_CONTRACT_DATAwith the actual data for your contract.
Verify transactions in Seolia
To verify your coin, you need to use the Hardhatverifycommand. This will interact with the Seolia API key to get the transaction details and verify that they are valid:
Contract deployed: ${deployAddress}// seolia.js (as before)
async deploy() {
const provider = new ethers.providers.Web3Provider(window.ethereum);
const wallet = await provider.get signer();
// Deploy the contract and get its address
const tx = await wallet.deployed(
'
{ data: 'YOUR_CONTRACT_DATA' }
);
const deployAddress = tx.hash;
console.log(
);Error verifying transaction: ${response.statusText}// Verify transactions in Seolia
try {
await verifySeoliaAddress(deployAddress, provider);
} catch (error) {
console.error('Error verifying transaction:', error);
}
}
async function verifySeoliaAddress(address, provider) {
const seoliaApiUrl = '
const params = {
address,
network: 'seolia',
};
try {
const response = await fetch(seoliaApiUrl, { method: 'POST', body: JSON.stringify(params), headers: { 'Content-Type': 'application/json' } });
if (response.ok) {
console.log('Transaction successfully verified');
} else {
throw new Error(
);}
} catch (error) {
console.error('Error verifying transaction:', error);
}
}
Testing the verification function
To test the verification function, you can create a simple test suite using Jest:
“javascript
// seolia.test.js
import { verifySeoliaAddress } from ‘./seolia’;
describe(‘verifySeoliaAddress’, () => {
it(‘Should return true if transaction is verified’, async () => {
// Mock Seolia API response
const response = {
data: {
Address: ‘YOUR_DEPLAYED_ADDRESS’,
Network: ‘seolia’,
},
};
await verifySeoliaAddress(response.data.address, { environment: ‘development’ });
expect(true).
Responses