Book Image

Blockchain Quick Start Guide

By : Xun (Brian) Wu, Weimin Sun
Book Image

Blockchain Quick Start Guide

By: Xun (Brian) Wu, Weimin Sun

Overview of this book

Blockchain is a technology that powers the development of decentralized applications.This technology allows the construction of a network with no single control that enables participants to make contributions to and receive benefits from the network directly. This book will give you a thorough overview of blockchain and explain how a blockchain works.You will begin by going through various blockchain consensus mechanisms and cryptographic hash functions. You will then learn the fundamentals of programming in Solidity – the defacto language for developing decentralize, applications in Ethereum. After that, you will set up an Ethereum development environment and develop, package, build, and test campaign-decentralized applications.The book also shows you how to set up Hyperledger composer tools, analyze business scenarios, design business models, and write a chain code. Finally, you will get a glimpse of how blockchain is actually used in different real-world domains. By the end of this guide, you will be comfortable working with basic blockchain frameworks, and develop secure, decentralized applications in a hassle-free manner.
Table of Contents (14 chapters)
Title Page
Copyright and Credits
About Packt

Chapter 3. Overview of Solidity Programming

Solidity is a smart contract programming language. It was developed by Gavin Wood, Christian Reitwiessner, Alex Beregszaszi, and several Ethereum core contributors. It is a JavaScript-like, general-purpose language designed to target the Ethereum virtual machine (EVM). Solidity is one of four languages in the Ethereum protocol at the same level of abstraction, the others being Serpent (similar to Python), LLL (Lisp-like language), Vyper (experimental), and Mutan (deprecated). The community has slowly converged on solidity. Usually, if anyone today talks about smart contracts in Ethereum, they implicitly mean solidity.

In this chapter, we will discuss the following topics: 

  • What is solidity?
  • Tools for the solidity development environment
  • Introduction to smart contracts
  • Common smart contract patterns
  • Smart contract security
  • Case study – crowdfunding campaign