Book Image

Hyperledger Cookbook

By : Xun (Brian) Wu, Chuanfeng Zhang, Zhibin (Andrew) Zhang
Book Image

Hyperledger Cookbook

By: Xun (Brian) Wu, Chuanfeng Zhang, Zhibin (Andrew) Zhang

Overview of this book

Hyperledger is an open-source project and creates private blockchain applications for a range of domains. This book will be your desk reference as you explore common and not-so-common challenges faced while building blockchain networks using Hyperledger services. We'll work through all Hyperledger platform modules to understand their services and features and build end-to-end blockchain applications using various frameworks and tools supported by Hyperledger. This book's independent, recipe-based approach (packed with real-world examples) will familiarize you with the blockchain development cycle. From modeling a business network to integrating with various tools, you will cover it all. We'll cover common and not-so-common challenges faced in the blockchain life cycle. Later, we'll delve into how we can interact with the Hyperledger Fabric blockchain, covering all the principles you need to master, such as chaincode, smart contracts, and much more. We'll also address the scalability and security issues currently faced in blockchain development. By the end of this book, you will be able to implement each recipe to plan, design, and create a full-fledged, private, decentralized application to meet organizational needs.
Table of Contents (12 chapters)

Configuring a Composer business network

In the previous section, we set up a development environment. In this section, we will create the FarmaTrace business network definition including the .cto, .script, .query, and .acl files, and then package them as a .bna file using Composer tools.

The yo hyperledger-composer command has three options: Angular, business network, and CLI. These are defined as follows:

  • hyperledger-composer:businessnetwork is used to generate a skeleton business network with an asset, participant and transaction defined, as well as a Mocha unit test.
  • hyperledger-composer:angular is used to generate the Angular application by connecting to a running business network.
  • hyperledger-composer:cli is used to create a standard npm module with the usual attributes of name, author, description and help to create the sample structure.
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