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

ganache-cli


There are following two distinct phases in the overall modification and writing of transactions to a ledger using Ethereum:

  • The first stage is about creating a transaction and putting the transaction in a transaction pool.
  • The second phase that happens periodically is to get all transactions from a transaction pool and mine them. Mining here means writing those transactions to the Ethereum database or ledger.

From this description, it would be a time-consuming process if the same process is used for development and testing purposes. To ease the process of development and test of solutions and smart contracts on Ethereum, ganache-cli was created. It was earlier known as TestRPC. ganache-cli by itself contains both the Ethereum transaction processing and mining functionality. Moreover, there is no waiting period for mining of transactions. The transactions are written as they are generated. It means developers can use ganache-cli as their Ethereum node and do not need mining activity...