Ethers.Js Development Tutorials, Guides & Insights

• crypto.randomBytes is part of Node.js, so it requires no external dependencies. This makes it ideal for Node.js environments where minimal dependencies are desired.
• ethers.randomBytes requires the installation of the ethers.js library, which is primarily designed for blockchain-related projects. This is useful if you're already working with Ethereum, but it adds an external dependency to the project.

• crypto.randomBytes:
• Takes a single argument specifying the number of bytes.
• Always requires a size input; no default value is provided.
• ethers.randomBytes:
• Optionally takes the number of bytes to generate.
• If no argument is provided, it defaults to generating 32 bytes.

To follow along with this tutorial, you’ll need:

• Node.js installed on your machine.
• A basic understanding of JavaScript.
• An Etherscan API key (explained below).
• Familiarity with Ethers.js for blockchain interaction.

• Infura Provider: You connect to the Ethereum network using the Infura provider (infuraProvider), which allows you to interact with Ethereum nodes.
• Private Key: Replace 'YOUR_PRIVATE_KEY' with your Ethereum wallet’s private key (keep it secure).
• Recipient Address: Replace '0xRecipientEthereumAddress' with the Ethereum address you want to send Ether to.
• Gas and Fees: The gasLimit and gasPrice fields are required for sending transactions. The getGasPrice function retrieves the current gas price from the Infura node.

Once the script is ready, run it using Node.js:

If you plan to use Infura as your Ethereum provider, follow these steps:

Now, let's create a script to query the balance of an Ethereum wallet. This script will work with both Infura and public nodes.

• Website: Libsodium

This cheatsheet highlights essential blockchain libraries that are crucial for developing secure, efficient, and feature-rich blockchain applications. Whether you're working on Ethereum, Bitcoin, or other blockchain platforms, these libraries provide the tools needed to interact with blockchains, manage cryptographic operations, and build decentralized applications.