Book Image

Solidity Programming Essentials

Book Image

Solidity Programming Essentials

Overview of this book

Solidity is a contract-oriented language whose syntax is highly influenced by JavaScript, and is designed to compile code for the Ethereum Virtual Machine. Solidity Programming Essentials will be your guide to understanding Solidity programming to build smart contracts for Ethereum and blockchain from ground-up. We begin with a brief run-through of blockchain, Ethereum, and their most important concepts or components. You will learn how to install all the necessary tools to write, test, and debug Solidity contracts on Ethereum. Then, you will explore the layout of a Solidity source file and work with the different data types. The next set of recipes will help you work with operators, control structures, and data structures while building your smart contracts. We take you through function calls, return types, function modifers, and recipes in object-oriented programming with Solidity. Learn all you can on event logging and exception handling, as well as testing and debugging smart contracts. By the end of this book, you will be able to write, deploy, and test smart contracts in Ethereum. This book will bring forth the essence of writing contracts using Solidity and also help you develop Solidity skills in no time.
Table of Contents (17 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Geth


Implementation of Ethereum nodes and clients is available in multiple languages, including Go, C++, Python, JavaScript, Java, Ruby, and more. The functionality or usability of these clients are the same across languages, and developers should choose an implementation they are most comfortable with. This book uses the Go implementation known as Geth, which acts as an Ethereum client to connect to public and test networks. It is also used to create the mining and EVM (transaction nodes) for private networks. Geth is a command-line tool written in Go for creating a node and miners on a private chain. It can be installed on Windows, Linux, and Mac as well. Now, its time to install Geth.

Installing Geth on Windows

The first step in creating a private Ethereum network is to download and install Geth (go-ethereum) tool.

In this section, the steps to download and install Geth on Windows are as follows:

  1. Geth can be downloaded from the https://ethereum.github.io/go-ethereum/downloads/ page. It is...