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Building Blockchain Projects

You're reading from Building Blockchain Projects Building decentralized Blockchain applications with Ethereum and Solidity

Product type Paperback

Published in Apr 2017

Publisher Packt

ISBN-13 9781787122147

Length 266 pages

Edition 1st Edition

Languages

Solidity

Tools

Blockchain

Concepts

Blockchain

Author (1):

Narayan Prusty

View More author details

Table of Contents (10) Chapters

Preface

1. Understanding Decentralized Applications FREE CHAPTER

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

Building the betting contract

In our betting application, two people can choose to bet on a football match with one person supporting the home team and the other person supporting the away team. They both should bet the same amount of money, and the winner takes all the money. If the match is a draw, then they both will take back their money.

We will use the FastestLiveScores API to find out the result of matches. It provides a free API, which lets us make 100 requests per hour for free. First, go ahead and create an account and then generate an API key. To create an account, visit https://customer.fastestlivescores.com/register, and once the account is created, you will have the API key visible at https://customer.fastestlivescores.com/. You can find the API documentation at https://docs.crowdscores.com/.

For every bet between two people in our application, a betting contract will be deployed. The contract will contain the match ID retrieved from the FastestLiveScores API, the amount of wei...

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Authors (1)

Narayan Prusty

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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