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Building Blockchain Projects

You're reading from Building Blockchain Projects

Product type Book

Published in Apr 2017

Publisher Packt

ISBN-13 9781787122147

Pages 266 pages

Edition 1st Edition

Languages

Concepts

Author (1):

Narayan Prusty

Table of Contents (16) Chapters

Title Page

Credits

About the Author

About the Reviewers

www.PacktPub.com

Customer Feedback

Preface

1. Understanding Decentralized Applications

2. Understanding How Ethereum Works

3. Writing Smart Contracts

4. Getting Started with web3.js

5. Building a Wallet Service

6. Building a Smart Contract Deployment Platform

7. Building a Betting App

8. Building Enterprise Level Smart Contracts

9. Building a Consortium Blockchain

Chapter 6. Building a Smart Contract Deployment Platform

Some clients may need to compile and deploy contracts at runtime. In our proof-of-ownership DApp, we deployed the smart contract manually and hardcoded the contract address in the client-side code. But some clients may need to deploy smart contracts at runtime. For example, if a client lets schools record students' attendance in the blockchain, then it will need to deploy a smart contract every time a new school is registered so that each school has complete control over their smart contract. In this chapter, we will learn how to compile smart contracts using web3.js and deploy it using web3.js and EthereumJS.

In this chapter, we'll cover the following topics:

Calculating the nonce of a transaction
Using the transaction pool JSON-RPC API
Generating data of a transaction for contract creation and method invocation
Estimating the gas required by a transaction
Finding the current spendable balance of an account
Compiling smart contracts using...

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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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