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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

Building a decentralized lottery on Ethereum

Distributed technologies are some of the most suitable platforms for running decentralized organizations. A Decentralized Autonomous Organization (DAO) is an organization that is run through the rules encoded in a smart contract. You can use Ethereum to create your own DAOs with the set of rules hardcoded inside the contract.

In this recipe, you will learn how to create a decentralized organization that runs a lottery system on Ethereum blockchain.

Getting ready

You need to have a working installation of Ethereum (geth, Parity, ganache, and so on) or the Remix IDE to test this recipe.

The contracts given are for illustration purposes only and cannot be used in real-world systems.

How to do it…

Let's consider a lottery system that selects the winning numbers based on a future block hash. While buying a ticket, the user is asked to guess a random set of numbers and is validated against some future block. The prize is given based on how accurate the prediction...

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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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