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Blockchain Quick Start Guide

By : Xun (Brian) Wu, Sun

4 (3)

Buy this Book

Blockchain Quick Start Guide

4 (3)

By: Xun (Brian) Wu, Sun

Buy this Book

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.

Preface

Who this book is for

What this book covers

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Free Chapter

Introduction to Blockchain Technology

The genealogy analogy

The consensus mechanism

Enterprise blockchain – Hyperledger

The evolution of blockchain

Summary

Ethereum Fundamentals

An overview of Ethereum

Ethereum basic concepts

Performance

Summary

Overview of Solidity Programming

What is solidity?

Tools for solidity development environment

Introduction to smart contracts

Common smart contract patterns

Smart contract security

Case study – crowdfunding campaign

Summary

Building an Ethereum Blockchain Application

Decentralized application overview

DApp development tools

Setting up an Ethereum development environment

Deploying a smart contract

Writing a campaign decentralized application

Summary

Exploring an Enterprise Blockchain Application Using Hyperledger Fabric

Key concepts in Hyperledger Fabric

Core component model

Setting up a Hyperledger Fabric environment

Writing chaincode

Configuring Hyperledger Fabric

Summary

Implementing Business Networks Using Hyperledger Composer

Hyperledger Composer – a quick overview

Setting up a Hyperledger Composer environment

Analyzing business scenarios

Business network archive

Implementing the business transaction function

Summary

Blockchain Use Cases

Blockchain use case examples

How to choose a proper use case

DApp use case – healthcare data sharing

Summary

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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: