Book Image

The Essential Guide to Web3

By : Vijay Krishnan
3 (1)
Book Image

The Essential Guide to Web3

3 (1)
By: Vijay Krishnan

Overview of this book

Web3, the new blockchain-based web, is often hailed as the future of the internet. Driven by technologies such as cryptocurrencies, NFTs, DAOs, decentralized finance, and more, Web3’s aim is to give individuals more control over the web communities they belong to. Whether you’re a beginner or an experienced developer, this book will help you master the intricacies of Web3 and its revolutionary technologies. Beginning with a concise introduction to blockchain and the Ethereum ecosystem, this book quickly immerses you in real-world blockchain applications. You’ll work on carefully crafted hands-on exercises that are designed for beginners as well as users with prior exposure. The chapters show you how to build and deploy smart contracts, while mastering security controls and discovering best practices for writing secure code. As you progress, you’ll explore tokenization and gain proficiency in minting both fungible and non-fungible tokens (NFTs) with the help of step-by-step instructions. The concluding chapters cover advanced topics, including oracles, Layer 2 (L2) networks, rollups, zero knowledge proofs, and decentralized autonomous organizations (DAOs). By the end of this Web3 book, you’ll be well-versed in the Web3 ecosystem and have the skills to build powerful and secure decentralized applications.
Table of Contents (25 chapters)
Free Chapter
1
Part 1 – Introduction to Web3
5
Part 2 – All about Smart Contracts
9
Part 3 – Writing Your DApps for Web3
12
Part 4 – Fungible Tokens
15
Part 5 – Non-Fungible Tokens
18
Part 6 – Web3 Advanced Topics

Summary

In this chapter, we got into the core of Web3 development. We learned about the different Ethereum clients and some of the widely used libraries. We also learned about testnets and how to access them. We saw a couple of development frameworks for Web3, including Hardhat, which we are already familiar with and will be using most of the time in this book. However, getting familiar with Hardhat is something I strongly recommend. Then, we learned about node providers and the pros and cons of hosting a node. We also created an account with Infura so that we can use it in our exercises moving forward. Finally, we learned about IPFS, a distributed storage service, and how it made a huge impact on the NFT economy.

While talking about IPFS, we uncovered its purpose and use cases. We also explained the life cycle of data in IPFS and covered the steps involved in adding, pinning, retrieving, verifying, and removing data. Finally, we learned about IPFS gateways, including their advantages...