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)

Deploying contracts using geth

After writing your smart contract, it is time to deploy it in Ethereum. In this recipe, you will learn about deploying your smart contract and testing it to ensure that it works as intended.

Getting ready

You will need a working installation of the solc compiler to compile your contract and geth to deploy it. We will be using the geth JavaScript console to run the deployment and transaction scripts.

How to do it...

  1. Here is our simple smart contract example:
pragma solidity ^0.4.21;

contract HelloWorld {

string public greeting = &quot...