Blockchain Development Programming Tutorials, Guides & Best Practices

  npm install @stacks/blockchain-api-client

• Website: Blockstack

• Description: A JavaScript library that allows you to interact with the Ethereum blockchain via HTTP, WebSocket, or IPC.
• Key Features:
• Comprehensive set of tools to interact with smart contracts.
• Connects to Ethereum nodes via HTTP, WebSocket, or IPC.
• Handles sending Ether and deploying contracts.
• Provides utilities for managing accounts, keys, and wallets.
• Website: Web3.js

• Description: A lightweight and complete library for interacting with the Ethereum blockchain and its ecosystem.
• Key Features:
• Smaller and more modular than Web3.js.
• Easy-to-use API for interacting with contracts and wallets.
• Extensive support for signing transactions and handling wallets.
• Built-in utilities for interacting with Ethereum Name Service (ENS).
• Works well with Hardhat and other Ethereum tools.
• Website: Ethers.js

Example Contract:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract MessageStore {
    string public message;

    function setMessage(string memory newMessage) public {
        message = newMessage;
    }

    function getMessage() public view returns (string memory) {
        return message;
    }
}

truffle migrate --network mainnet

You can host your front-end on a decentralized platform like Fleek or Netlify for broader access.

In this tutorial, we'll learn how to track a specific Solana address for new trades and notify via console.log with the transaction details, including the amount bought or sold. We will use the Solana Web3.js library to connect to the Solana blockchain, listen for new transactions, and fetch their details.

Prerequisites