Book Image

Truffle Quick Start Guide

By : Nikhil Bhaskar
Book Image

Truffle Quick Start Guide

By: Nikhil Bhaskar

Overview of this book

Truffle is a world-class development environment, testing framework and asset pipeline for Ethereum, aiming to make life as an Ethereum developer easier. If you are a web developer wanting to try your hand at developing Dapps with Truffle, then this is the book for you. This book will teach you to write smart contracts and build Dapps with Truffle. You will begin with covering the basics of Truffle, briefly explaining how it integrates Solidity and Web3, in orderto start building a mini decentralized application. Also, you will dive into migration, testing and integrating Truffle with the use of popular JavaScript frameworks. Lastly, you will ship your decentralized application and package it into a product. Moreover, you will go through the best practices in Truffle,so as to increase your proficiency in building Dapps with Truffle. By the end of the book, you will be able to write smart contracts and build decentralized applications with Truffle on Ethereum blockchains.
Table of Contents (9 chapters)

What is web3?

We mentioned web3 briefly in Chapter 1, Truffle for Decentralized Applications, and we even used it without fully understanding it. The purpose of Chapter 1, Truffle for Decentralized Applications, was to get a fully functional and working Dapp on a local blockchain so you could understand the power of Truffle.

Now, it's time to get more granular.

Web3 is a collection of APIs that allows JavaScript to access blockchain-based data and perform common Ethereum functions such as getting all accounts in a particular network, getting the balance of an account, or getting the particular block number.

Let's take a look at some examples:

var balance = web3.eth.getBalance("0x407d73d8a49eeb85d32cf465507dd71d507100c1");
console.log(balance); // instanceof BigNumber
console.log(balance.toString(10)); // '1000000000000'