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)

Creating a token that can be burnt

If new tokens can be created as per requirement, then we can also have a functionality that will delete the tokens from the network. In simple terms, burnt tokens cannot be spent anymore. In reality, decreasing the total supply can increase the value of each token in addition to other benefits.

In this recipe, you will learn a method to delete tokens permanently from the contract.

Getting ready

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

This contract extends the ERC20 contract explained in the first three recipes of this chapter. If you don't know what ERC20 is, then it is recommended to try the...