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Ethereum Cookbook

You're reading from Ethereum Cookbook Over 100 recipes covering Ethereum-based tokens, games, wallets, smart contracts, protocols, and Dapps

Product type Paperback

Published in Aug 2018

Publisher Packt

ISBN-13 9781789133998

Length 404 pages

Edition 1st Edition

Languages

Solidity

Tools

Ethereum

Concepts

Cryptocurrency

Author (1):

Manoj P R

View More author details

Table of Contents (18) Chapters

Title Page

Copyright and Credits

Packt Upsell

Contributors

Preface

1. Getting Started FREE CHAPTER

2. Smart Contract Development

3. Interacting with the Contract

4. The Truffle Suite

5. Tokens and ICOs

6. Games and DAOs

7. Advanced Solidity

8. Smart Contract Security

9. Design Decisions

10. Other Protocols and Applications

11. Miscellaneous

1. Other Books You May Enjoy

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Index

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 in Chapter 3, Interacting with the Contract.

How to do it…

Every ERC20 contract will have the same ABI structure, which is predefined by the standard. Create an application that makes use of this ABI to support all the tokens created using the standard.
A basic ERC20...

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Authors (1)

Manoj P R

Manoj P R

Manoj P R is a tech-savvy person who has been working with distributed ledger technology for more than three years. His passion for the latest technology trends in the market has made him an avid learner and contributor in this space. He specializes in Ethereum, JavaScript, and Go. A self-taught programmer, Manoj started his programming career as a freelancer during his early academic life. He has developed many scalable enterprise blockchain solutions for various clients across the globe. He is currently associated with Conduent Labs as a Blockchain SME. He loves solving real-life problems using technology and is a lively contributor towards open source projects. Apart from work, Manoj likes traveling and writing.

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