Introduction

About me

Hey everyone! I'm José Flores, and I can't wait to take you on an incredible adventure into Blockchain and Web3 development. I've been absolutely fascinated by the great potential of blockchain technology — from using smart contracts to replace traditional middlemen to admiring Bitcoin's strength as a limited digital asset. With over five years of experience as a software engineer and jumping into the crypto world in 2016, I think it's time to build and hopefully share what I've learned. In this book, we'll explore blockchain to give you the skills to create your Crypto Portfolio Tracker. Here's what you can expect:

What We'll Cover:

• Blockchain Basics: Understand the foundational principles behind blockchain technology.

• Ethereum & Smart Contracts: Dive into Ethereum, exploring how to create and deploy smart contracts.

• Web3 Development: Learn how to interact with the blockchain using Web3.js, enabling you to build decentralized applications (DApps).

• Full-Stack Integration: Integrate blockchain functionalities into a full-stack application, using Node.js for the backend and React for the front end.

• Practical Projects: Apply your knowledge through a hands-on project, including a Crypto Portfolio Tracker interacting with various blockchain technologies.

Learning Goals:

By the end of this book, you'll have a solid understanding of blockchain technology and Web3 development. You'll be able to:

• Transaction Tracking: Gain the ability to monitor and display transactions for specified cryptocurrency addresses within your app, providing users with detailed insights into their digital asset movements.

• Live Price Integration: Master the integration of live cryptocurrency prices into your application, ensuring users have access to real-time market data for informed decision-making.

• Making Cryptocurrency Transactions: Learn how to facilitate cryptocurrency transactions directly from the mobile app, including securely sending and receiving digital currencies.

Recommended Prerequisites:

A basic grasp of JavaScript and familiarity with web development concepts will be beneficial. Don't worry if you're new to some of these topics; we'll cover the essentials you need to get started.

Interactive Learning Experience:

• Hands-On Code Examples: Follow along with code snippets and detailed explanations.

• Exercises and Mini-Projects: Test your understanding and apply what you've learned.

• Visual Aids: Diagrams, flowcharts, and screenshots will help demystify complex concepts.

Let's Dive In:

Prepare to unlock the power of blockchain and Web3. Whether you're looking to build your next project or simply curious about the future of decentralized technology, this adventure is for you. Let's do something incredible together. Ready? Let's jump into the world of blockchain development!