- Both of these functions are available with the address data type. The transfer call fails even when an internal function call throws an error; however, the send function returns the bool type as false in the event of a failure.
- If you use the send function in your contract, then you would need to explicitly check for the returned bool type, which could be missed, which would lead to a higher chance of getting it wrong. Even if there is no more gas left during the send call and an out-of-gas exception is thrown, it will return false as a result. For these reasons, it is recommended that you use transfer rather than the send function.
- It is not recommended that you use the delegatecall function. This functions use low-level calls. These calls use the code from another contract, but use the storage...
Mastering Blockchain Programming with Solidity
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Mastering Blockchain Programming with Solidity
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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.
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Current Title:
Mastering Blockchain Programming with Solidity
Table of Contents (21 chapters)
Preface
Free Chapter
Section 1: Getting Started with Blockchain, Ethereum, and Solidity
Introduction to Blockchain
Getting Started with Solidity
Control Structures and Contracts
Section 2: Deep Dive into Development Tools
Learning MetaMask and Remix
Using Ganache and the Truffle Framework
Taking Advantage of Code Quality Tools
Section 3: Mastering ERC Standards and Libraries
ERC20 Token Standard
ERC721 Non-Fungible Token Standard
Deep Dive into the OpenZeppelin Library
Using Multisig Wallets
Upgradable Contracts Using ZeppelinOS
Building Your Own Token
Section 4: Design Patterns and Best Practices
Solidity Design Patterns
Tips, Tricks, and Security Best Practices
Assessments
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Customer Reviews