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

Summary

In this chapter, we looked into one of the most well-known and battle-tested multisig: the ConsenSys multisig wallet. We learned how multiple owners can control a multisig contract and send ETH from a contract to another account. We also looked into how you can allow a multisig to maintain ownership or the role of a target contract. Every transaction on a multisig needs to have multiple signatures in order to be executed, which improves the security of the contract or funds. There are a few other multisig wallets available, but, at the time of writing, the ConsenSys multisig wallet seems to be one of the safest.

We also understood that, along with the fund's safety, multisig wallets can also be used for maintaining ownership access rights. These improve the multi-level security of your funds and access controls. It is always recommended to use multisig wallets...