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)

Reading data from smart contracts

The best way to interact with your contract from your application is by using web3.js. This library offers plenty of feature sets that you will need while building a DApp. In this recipe, you will learn to read data from the deployed smart contract.

Getting ready

You need to have web3.js installed on your application to use these methods. Ensure that your Ethereum node is running. You can also use Ganache to create a development node.

How to do it...

In order to read data from smart contracts, we will have to perform these steps:

  1. Create...