@ethersproject/providers

Connecting to a Provider

This feature allows you to connect to an Ethereum node using a JSON-RPC provider. In this example, we use Infura as the provider.

const { ethers } = require('ethers');
const provider = new ethers.providers.JsonRpcProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');

Querying Blockchain Data

This feature allows you to query blockchain data. In this example, we fetch the current block number from the Ethereum network.

const { ethers } = require('ethers');
const provider = new ethers.providers.JsonRpcProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');
async function getBlockNumber() {
  const blockNumber = await provider.getBlockNumber();
  console.log('Current block number:', blockNumber);
}
getBlockNumber();

Sending Transactions

This feature allows you to send transactions on the Ethereum network. In this example, we create a wallet instance and send a transaction to a recipient address.

const { ethers } = require('ethers');
const provider = new ethers.providers.JsonRpcProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');
const wallet = new ethers.Wallet('YOUR_PRIVATE_KEY', provider);
async function sendTransaction() {
  const tx = {
    to: '0xRecipientAddress',
    value: ethers.utils.parseEther('0.01')
  };
  const transaction = await wallet.sendTransaction(tx);
  console.log('Transaction hash:', transaction.hash);
}
sendTransaction();