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)

Hyperledger blockchain scalability and performance

In the public blockchain, anyone can join the network to execute a transaction. Bitcoin runs a Proof of Work (PoW) based consensus algorithm with 1 block creation time of 10 minutes and a fixed block size of 1 MB. The transaction processing peak throughput is between 3.3-7 transactions per second. The six-block confirmation latency takes around one hour.

At the high-level flow process, the transaction messages are submitted to the ordering service. The orderer then receives transactions from various channels and queues up these messages per channel. The orderer creates a new block of transactions per channel and delivers the block to all peers through the gossip protocol. The gossip protocol connects the peers in the channel and broadcasts ledger and channel data in a scalable fashion. The transaction message can be communicated...