Book Image

Hands-On Blockchain with Hyperledger

By : Nitin Gaur, Luc Desrosiers, Venkatraman Ramakrishna, Petr Novotny, Salman A. Baset, Anthony O'Dowd
Book Image

Hands-On Blockchain with Hyperledger

By: Nitin Gaur, Luc Desrosiers, Venkatraman Ramakrishna, Petr Novotny, Salman A. Baset, Anthony O'Dowd

Overview of this book

Blockchain and Hyperledger technologies are hot topics today. Hyperledger Fabric and Hyperledger Composer are open source projects that help organizations create private, permissioned blockchain networks. These find application in finance, banking, supply chain, and IoT among several other sectors. This book will be an easy reference to explore and build blockchain networks using Hyperledger technologies. The book starts by outlining the evolution of blockchain, including an overview of relevant blockchain technologies. You will learn how to configure Hyperledger Fabric and become familiar with its architectural components. Using these components, you will learn to build private blockchain networks, along with the applications that connect to them. Starting from principles first, you’ll learn to design and launch a network, implement smart contracts in chaincode and much more. By the end of this book, you will be able to build and deploy your own decentralized applications, handling the key pain points encountered in the blockchain life cycle.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Packt Upsell
Foreword
Contributors
Preface
Index

Introducing transactions


Our journey so far has involved understanding the fundamental nature of a business network—that it is comprised of participants involved in the meaningful exchange of assets. Let's now focus on the most important concept in business networks—exchange.

Change as a fundamental concept

Why is exchange the most important idea? Well, without it, participants and assets have no purpose!

This seems like an excessively hyperbolic statement! However, if you think about it for a moment, participants only meaningfully exist in the sense that they exchange goods and services (collectively known as assets) with each other. If a participant does not exchange with another participant, they don't exist in any meaningful way. It's the same with assets—if they aren't exchanged between participants, then they don't exist in any meaningful way either. There's no point in an asset having a life cycle if it doesn't move between different participants, because the asset is private to a participant...