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 wallet that supports all ERC20 tokens

One of the important advantages of following a standard during token creation is the support for wallets. The wallets created for one token can support all the other tokens that follow the same standard. In this recipe, you will learn to create a wallet that can send tokens, check token balance, approve transfers, and other ERC20 functions.

Getting ready

You need to have an ERC20 token set up and deployed for testing your wallet. If you are not familiar with creating a token in Ethereum, it is recommended to step through the first few recipes of this chapter.

The examples given in this recipe use web3js v1.x. Older versions may have different syntax and you can find more information...