Ethereum: How to use `scantxoutset`?

Ethereum: How to Use scantxoutset

Introduction

————

When working with Ethereum, it is essential to understand how to get the UTXO (Unspent Transaction Outputs) for a given address. However, using standard Bitcoin command line tools can be cumbersome and error-prone. In this article, we will explore the Ethereum scantxoutset command and provide guidance on its use.

What is Scantxoutset?

———————

scantxoutset is an Ethereum command line tool that allows you to retrieve UTXO for a given address. It is designed to be more convenient than traditional Bitcoin tools, as it offers a simpler interface with fewer options and better performance.

Using Scantxoutset

——————

To use scanxoutset, follow these steps:

Step 1: Install the required dependencies

First, make sure you have Node.js (>= 14.17.0) installed on your system. Next, install the ethers.js library using npm:

npm install ethers

Import theEthereumProviderclass from theethers.jslibrary:

import { EthereumProvider } fromethers';

Next, initialize an instance of the provider with your network details. Ethereum (e.g. mainnet, ropsten, or a custom network):

const provider = new EthereumProvider('

Replace YOUR_PROJECT_ID with your current Infura project ID.

Step 3: Create a Scantxoutset instance

Create an instance of the ScantxOutset class, specifying your provider. and address:

const scantxoutset = new ethers.Contract(
"
[
'function getUTXOs(address) public returns (address[] memory) {
return await getTransactionOutputList(address);
}
],
provider,
{ log: false, weightLimit: Number.MAX_SAFE_INTEGER }
);

Replace YOUR_PROJECT_ID with your actual Infura project ID and the contract ABI for the getUTXOs function.

Step 4: Retrieve UTXOs

Retrieve UTXOs for a specific address using the scantxoutset' instance:

scantxoutset.getUTXOs('0x...').then((utxos) => console.log(utxos));

Replace 0x..'' with the desired Ethereum address.

• To retrieve UTXOs for multiple addresses, pass an array of addresses to thegetUTXOsfunction:

scantxoutset.getUTXOs(['0x...', '0x...']).then((utxos) => console.log(utxos));

• You can also use the scantxoutsetinstance to retrieve UTXOs for a specific transaction using itsgetTransactionOutputListfunction:

const tx = { from: '0x...', value: 100n };
scantxoutset.getUTXOs(tx.address).then((transactionOuts) => console.log(transactionOuts));

Using scantxoutsetto retrieve UTXOs for a specific Ethereum address is a convenient and efficient way to manage your smart contracts. By following these steps, you should be able to successfully use this command line tool with confidence.

Don't forget to replace the placeholders (YOUR_PROJECT_ID`) with your actual Infura project ID and contract ABI details. Happy coding!