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Blockchain for Enterprise

You're reading from Blockchain for Enterprise

Product type Book

Published in Sep 2018

Publisher Packt

ISBN-13 9781788479745

Pages 220 pages

Edition 1st Edition

Languages

Concepts

Author (1):

Narayan Prusty

Table of Contents (14) Chapters

Title Page

Packt Upsell

Contributors

Preface

1. What are Decentralized Applications?

2. Building Blockchain Using Quorum

3. Writing Smart Contracts

4. Getting Started with web3.js

5. Building Interoperable Blockchains

6. Building Quorum as a Service Platform

7. Building a DApp for Digitizing Medical Records

8. Building a Payment Solution for Banks

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Index

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.

Note

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...

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Authors (1)

Narayan Prusty

Narayan Prusty is a full-stack developer. He works as a consultant for various start-ups around the world. He has worked on various technologies and programming languages but is very passionate about JavaScript, WordPress, Ethereum, Solr, React, Cordova, MongoDB, and AWS. Apart from consulting for various start-ups, he also runs a blog titled QNimate and a video tutorial site titled QScutter, where he shares information about a lot of the technologies he works on.

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