Book Image

Blockchain Quick Reference

By : Mariko Amekodommo, Brenn Hill, Samanyu Chopra, Paul Valencourt
Book Image

Blockchain Quick Reference

By: Mariko Amekodommo, Brenn Hill, Samanyu Chopra, Paul Valencourt

Overview of this book

Blockchain Quick Reference takes you through the electrifying world of blockchain technology and is designed for those who want to polish their existing knowledge regarding the various pillars of the blockchain ecosystem. This book is your go-to guide, teaching you how to apply principles and ideas for making your life and business better. You will cover the architecture, Initial Coin Offerings (ICOs), tokens, smart contracts, and terminologies of the blockchain technology, before studying how they work. All you need is a curious mind to get started with blockchain technology. Once you have grasped the basics, you will explore components of Ethereum, such as ether tokens, transactions, and smart contracts, in order to build simple Dapps. You will then move on to learning why Solidity is used specifically for Ethereum-based projects, followed by exploring different types of blockchain with easy-to-follow examples. All this will help you tackle challenges and problems. By the end of this book, you will not only have solved current and future problems relating to blockchain technology but will also be able to build efficient decentralized applications.
Table of Contents (24 chapters)

Working on a smart contract

Let's dive into the task of creating a smart contract, along with the process of testing the smart contract on TestNet. The easiest way to run the code discussed in the following is on Remix. Just follow these steps:

  1. When you open Remix in the browser, by default, it opens the ballot.sol file; you can create a new file and start editing your first smart contract. Take a look at this:
pragma solidity ^0.4.24;

//This is a test comment, details about the contract can be added here
/*details like Total supply, contract address, Name, Symbol an decimals which will help someone knowing about the contract instead of finding these details within the source code

*/

contract Gotham{

string public name;
string public symbol;
uint8 public decimals;
//most suggested decimal places in 18
uint256 public totalSupply;


}
  1. In the previous code snippet...