Book Image

Blockchain Development with Hyperledger

By : Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny, Anthony O'Dowd, Venkatraman Ramakrishna, Weimin Sun, Xun (Brian) Wu
Book Image

Blockchain Development with Hyperledger

By: Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny, Anthony O'Dowd, Venkatraman Ramakrishna, Weimin Sun, Xun (Brian) Wu

Overview of this book

Blockchain and Hyperledger are open source technologies that power the development of decentralized applications. This Learning Path is your helpful reference for exploring and building blockchain networks using Ethereum, Hyperledger Fabric, and Hyperledger Composer. Blockchain Development with Hyperledger will start off by giving you an overview of blockchain and demonstrating how you can set up an Ethereum development environment for developing, packaging, building, and testing campaign-decentralized applications. You'll then explore the de facto language Solidity, which you can use to develop decentralized applications in Ethereum. Following this, you'll be able to configure Hyperledger Fabric and use it to build private blockchain networks and applications that connect to them. Toward the later chapters, you'll learn how to design and launch a network, and even implement smart contracts in chain code. By the end of this Learning Path, you'll be able to build and deploy your own decentralized applications by addressing the key pain points encountered in the blockchain life cycle. This Learning Path includes content from the following Packt products: • Blockchain Quick Start Guide by Xun (Brian) Wu and Weimin Sun • Hands-On Blockchain with Hyperledger by Nitin Gaur et al.
Table of Contents (25 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Index

Configuring Hyperledger Fabric


There are three entities in the insurance claim network—insuree, broker, and insurer. All of these participants will register in Fabric as a peer node. The following table describes the three peer roles and MSP information:

User ID

Role

Organization MSP ID

user_001

INSUREE

Org1MSP

broker_001

BROKER

Org2MSP

insurer_001

INSURER

Org3MSP

 

We have one insuree who joins the organization with MSP ID org1, one broker who joins the organization with MSP ID org2, and one insurer who joins the organization with MSP ID org3. For bootstrapping the fabric network, we need to first generate crypto material for all three components that we need to run.

Generating the certificate

We need to define crypto-config.yaml and use the cryptogen tool to generate the certificates for each peer. Cryptogen is available in the tools image. crypto-config.yaml contains the following information:

  • OrdererOrgs: Definition of organizations managing orderer nodes
  • PeerOrgs: Definition of organizations managing...