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You're reading from Mastering Blockchain Programming with Solidity

Product type Book

Published in Aug 2019

Publisher Packt

ISBN-13 9781839218262

Pages 486 pages

Edition 1st Edition

Languages

Solidity

Concepts

Blockchain

Author (1):

Jitendra Chittoda

Table of Contents (21) Chapters

Preface

1. Section 1: Getting Started with Blockchain, Ethereum, and Solidity

2. Introduction to Blockchain

3. Getting Started with Solidity

4. Control Structures and Contracts

5. Section 2: Deep Dive into Development Tools

6. Learning MetaMask and Remix

7. Using Ganache and the Truffle Framework

8. Taking Advantage of Code Quality Tools

9. Section 3: Mastering ERC Standards and Libraries

10. ERC20 Token Standard

11. ERC721 Non-Fungible Token Standard

12. Deep Dive into the OpenZeppelin Library

13. Using Multisig Wallets

14. Upgradable Contracts Using ZeppelinOS

15. Building Your Own Token

16. Section 4: Design Patterns and Best Practices

17. Solidity Design Patterns

18. Tips, Tricks, and Security Best Practices

19. Assessments

20. Other Books You May Enjoy

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Understanding the ERC721 implementation

As we have seen the ERC721 standard interface, now let's look at the ERC721 basic implementation. Here, for the implementation, we are going to use the code provided in Zeppelin's openzeppelin-solidity 2.1.1 release. However, developers must keep checking for new releases of the OpenZeppelin project to ensure that any bug fixes or gas improvements are updated in the latest code. You can always check for latest releases and the included bug fixes of OpenZeppelin on https://github.com/OpenZeppelin/openzeppelin-solidity/releases.

We will look into the following in this section:

State variables used in the ERC721 implementation
The different functions of ERC721 and their implementation
Internal functions provided by OpenZeppelin's ERC20 implementation
Events present in the ERC721 implementation and their usage

The...

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Authors (1)

Jitendra Chittoda

Jitendra Chittoda is a blockchain security engineer at ChainSecurity. His day job is to perform security audit on smart contracts and expose security vulnerabilities in Solidity and Scilla contracts. He has also developed a non-custodial, decentralized, P2P lending contracts for ETHLend. The Solidity contracts that he has developed or audited handle over $100 million worth of cryptoassets. He also served as a tech and security advisor in various ICO projects. Before finding his passion for blockchain, he coded in Java for over 11 years. He is the founder and leader of Delhi-NCR-JUG, a non-profit meetup group for Java. He holds a master's degree in computer applications and is regularly invited as a speaker at various conferences and meetups.

See other products by Jitendra Chittoda