Book Image

Mastering Blockchain Programming with Solidity

By : Jitendra Chittoda
Book Image

Mastering Blockchain Programming with Solidity

By: Jitendra Chittoda

Overview of this book

Solidity is among the most popular and contract-oriented programming languages used for writing decentralized applications (DApps) on Ethereum blockchain. If you’re looking to perfect your skills in writing professional-grade smart contracts using Solidity, this book can help. You will get started with a detailed introduction to blockchain, smart contracts, and Ethereum, while also gaining useful insights into the Solidity programming language. A dedicated section will then take you through the different Ethereum Request for Comments (ERC) standards, including ERC-20, ERC-223, and ERC-721, and demonstrate how you can choose among these standards while writing smart contracts. As you approach later chapters, you will cover the different smart contracts available for use in libraries such as OpenZeppelin. You’ll also learn to use different open source tools to test, review and improve the quality of your code and make it production-ready. Toward the end of this book, you’ll get to grips with techniques such as adding security to smart contracts, and gain insights into various security considerations. By the end of this book, you will have the skills you need to write secure, production-ready smart contracts in Solidity from scratch for decentralized applications on Ethereum blockchain.
Table of Contents (21 chapters)
Free Chapter
1
Section 1: Getting Started with Blockchain, Ethereum, and Solidity
5
Section 2: Deep Dive into Development Tools
9
Section 3: Mastering ERC Standards and Libraries
16
Section 4: Design Patterns and Best Practices

Understanding multisig wallets

As the name suggests, a multisig wallet is a wallet that requires multiple signatures to execute a transaction. A multisig wallet can have two or more owners controlling the transactions and funds that are present in the wallet. In a multisig wallet, you can define the minimum number of signatures that are required to execute a transaction. It's only when the required number of EOAs sign and confirm a particular transaction that it gets executed on the multisig. Existing owners can add or remove a new or existing owner from a multisig.

Different multisig wallet implementations are available, such as ConsenSys and Parity. However, the most widely used and safe multisig is the ConsenSys multisig implementation. In this chapter, we are going to talk about the ConsenSys multisig wallet implementation. The topics that we will discuss in...