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Blockchain for Enterprise

You're reading from   Blockchain for Enterprise Build scalable blockchain applications with privacy, interoperability, and permissioned features

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781788479745
Length 220 pages
Edition 1st Edition
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Author (1):
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Narayan Prusty Narayan Prusty
Author Profile Icon Narayan Prusty
Narayan Prusty
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Table of Contents (10) Chapters Close

Preface 1. What are Decentralized Applications? FREE CHAPTER 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 9. Other Books You May Enjoy

Introduction to web3.js

web3.js provides us with JavaScript APIs to communicate with geth. It uses JSON-RPC internally to communicate with geth. web3.js can also communicate with any other kind of Ethereum node that supports JSON-RPC. It exposes all JSON-RPC APIs as JavaScript APIs. It doesn't just support all the Ethereum-related APIs, but also supports APIs related to Whisper and Swarm.

As we build various projects, you will keep learning more about web3.js. For now, though, let's go through some of the most used APIs for web3.js. Later, we will build a frontend for our ownership smart contract using web3.js.

At the time of writing, the latest version of web3.js is 1.0.0-beta.18. We will learn everything using this version.

web3.js is hosted at https://github.com/ethereum/web3.js and the complete documentation is hosted at https://github.com/ethereum/wiki/wiki/JavaScript...

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