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)

Writing data into a smart contract

Reading data from a smart contract does not modify the state, while writing data into the contract modifies it. State changing methods can be called only by a transaction and with enough gas for execution. The state will be changed if the transaction satisfies all the conditions placed in the contract method.

In this recipe, you will learn how to interact with the contract using state changing methods.

Getting ready

Ensure that your Ethereum node is running. You can also use Ganache to create a development node.

How to do it...

For writing...