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

Contract ownership

There are some contracts that require the ownership of the contract to control some behavior in the contract. These contracts inherit from OpenZeppelin ownership contacts. These types of contracts require ownership rights so that the owner of the contract can access and control some of the features/functions of the contract. Sometimes, the ownership of a contract is defined such that it decides and influences token minting, ether/token flow, and ether/token withdrawals.

The ownership of the contracts should be given to the trusted entity. The following responsibilities need to be taken care of:

  • If ownership is given to an EOA, the owner needs to keep the private key of that account secure, in a safe place. Losing the private key would incur the loss of ether/tokens or malicious activity. The owner could lose their private key by forgetting where they kept...