Book Image

Ethereum Cookbook

By : Manoj P R
Book Image

Ethereum Cookbook

By: Manoj P R

Overview of this book

Ethereum and Blockchain will change the way software is built for business transactions. Most industries have been looking to leverage these new technologies to gain efficiencies and create new business models and opportunities. The Ethereum Cookbook covers various solutions such as setting up Ethereum, writing smart contracts, and creating tokens, among others. You’ll learn about the security vulnerabilities, along with other protocols of Ethereum. Once you have understood the basics, you’ll move on to exploring various design decisions and tips to make your application scalable and secure. In addition to this, you’ll work with various Ethereum packages such as Truffle, Web3, and Ganache. By the end of this book, you’ll have comprehensively grasped the Ethereum principles and ecosystem.
Table of Contents (13 chapters)

Delegating other accounts to spend your token

In addition to the regular transfer function, ERC20 provides an option to allow other accounts to spend on your behalf. This is made possible by allocating an amount they can spend from your account. This recipe focuses on implementing such approval methods from the token standard.

Getting ready

You need to have a development environment that supports solidity programming and an Ethereum network to deploy and test your code.

How to do it...

  1. ERC20 includes a few functions that enable a user to transfer on behalf of someone...