Book Image

Blockchain for Enterprise

By : Narayan Prusty
Book Image

Blockchain for Enterprise

By: Narayan Prusty

Overview of this book

The increasing growth in blockchain use is enormous, and it is changing the way business is done. Many leading organizations are already exploring the potential of blockchain. With this book, you will learn to build end-to-end enterprise-level decentralized applications and scale them across your organization to meet your company's needs. This book will help you understand what DApps are and how the blockchain ecosystem works, via real-world examples. This extensive end-to-end book covers every blockchain aspect for business and for developers. You will master process flows and incorporate them into your own enterprise. You will learn how to use J.P. Morgan’s Quorum to build blockchain-based applications. You will also learn how to write applications that can help communicate enterprise blockchain solutions. You will learn how to write smart contracts that run without censorship and third-party interference. Once you've grasped what a blockchain is and have learned about Quorum, you will jump into building real-world practical blockchain applications for sectors such as payment and money transfer, healthcare, cloud computing, supply chain management, and much more.
Table of Contents (14 chapters)
Title Page
Packt Upsell

Building your first IBFT network

We will build a network of six nodes. The first four will be validators and the other two will be non-validators. We will not add a constellation in this network. If you want to add one, the instructions are the same as previously. 

In IBFT, every validator is identified uniquely using an Ethereum account derived from its node key. Similar to Raft, in IBFT, before setting up the network you have to decide on the total number of validators that will be in the network and then generate an enode for each. And then, we create a static-nodes.json file listing the enodes of all the validating nodes, and feed this file to every validator in the network. After that, derive Ethereum addresses from the node IDs. And finally, we construct the extraData field and create the genesis file. 


In the case of IBFT, creating the static-nodes.json file is not necessary. You can connect nodes using the admin.addPeer(url) API too.

Installing IBFT tools

The IBFT software contains...