web3-plugin-blob-tx

Web3Js Plugin for Blob Transactions (EIP4844)

This Web3Js plugin enhances the capabilities of Ethereum transactions by adding support for EIP4844 transactions, also known as "Blob transactions". EIP4844 introduces a new transaction format that allows for more efficient data storage and transmission on the Ethereum blockchain.

Installation

npm i web3-plugin-blob-tx

Usage

Register plugin

import {Web3BlobTxPlugin} from 'web3-plugin-blob-tx';
web3 = new Web3(/* provider here */);
web3.registerPlugin(new Web3BlobTxPlugin());
web3.defaultHardfork = 'cancun'; // set hardfork which support blob transactions
web3.defaultChain = 'sepolia'; // set chain which support blob transactions

Methods

sendTransaction

// add account to sign transaction
const acc = web3.eth.accounts.privateKeyToAccount(String(process.env.PRIVATE_KEY));
web3.eth.accounts.wallet.add(acc);

const txData = {
	from: acc.address,
	nonce: await web3.eth.getTransactionCount(acc.address),
	to: '0x7ed0e85b8e1e925600b4373e6d108f34ab38a401',
	maxFeePerBlobGas: 31458962313,
	gasLimit: 5000000,
	maxFeePerGas: 31458962313,
	maxPriorityFeePerGas: 31458962313,
	blobsData: ['any data text'],
};
// you can get transaction receipt
const transactionReceipt = await web3.blobTx.sendTransaction(txData);

// or supribe to events
const res = web3.blobTx.sendTransaction(txData);
res.on('sending', data => {
	console.log('sending', data);
});

res.on('sent', data => {
	console.log('sent', data);
});

res.on('receipt', receipt => {
	console.log('receipt', receipt);
});

res.on('transactionHash', hash => {
	console.log('hash', hash);
});

res.on('error', error => {
	console.log('error', error);
});

res.on('confirmation', data => {
	console.log('confirmation', data);
});

const receipt = await res; // and get receipt here

estimateGas

import {BlobTransaction} from 'web3-plugin-blob-tx';

const txData:Partial<BlobTransaction> = {
    from: '0x7ed0e85b8e1e925600b4373e6d108f34ab38a401',
    to: '0x7ed0e85b8e1e925600b4373e6d108f34ab38a401',
    value: '0x0',
    gasLimit: 5000000,
    maxPriorityFeePerGas: 22380075395,
    maxFeePerGas: 22380075395,
    maxFeePerBlobGas: 29458962313n,
    blobsData: ['any data text'],
};
const gas = await web3.blobTx.estimateGas(txData);

getTransactionReceipt

const receipt = await web3.blobTx.getTransactionReceipt(/* transaction hash */);

getTransaction

const transaction = await web3.blobTx.getTransaction(/* transaction hash */);

getTransactionFromBlock

const transaction = await web3.blobTx.getTransactionFromBlock(/* block number or tag */, /* transaction index */);

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT