Library

Course: Ethereum : Master Web3js Library

Ethereum : Master Web3js Library

  • Life Time Access
  • Certificate on Completion
  • Access on Android and iOS App
About this Course

What is Etherum ?

Ethereum is an open source, globally decentralized computing infrastructure that executes programs called smart contracts. It uses a blockchain to synchronize and store the system’s state changes, along with a cryptocurrency called ether to meter and constrain execution resource costs.

The Ethereum platform enables developers to build powerful decentralized applications with built-in economic functions. While providing high availability, auditability, transparency and neutrality, it also reduces or eliminates censorship, and reduces certain counterparty risks.

What is a smart contract ?

The term smart contract has been used over the years to describe a wide variety of different things. In the 1990s, cryptographer Nick Szabo coined the term and defined it as “a set of promises, specified in digital form, including protocols within which the parties perform on the other promises”. Since then, the concept of smart contracts has evolved, especially after the introduction of decentralized blockchain platforms with the invention of Bitcoin in 2009. In the context of Ethereum, the term is actually a bit of a misnomer, given that Ethereum smart contracts are neither smart nor legal contracts, but the term has stuck. In this book, we use the term “smart contract” to refer to immutable computer programs that run deterministically in the context of an Ethereum Virtual Machine as part of the Ethereum network protocol, i.e. on the decentralized Ethereum world computer. 

What is a DApp?

A Decentralized Application, or DApp, is an application which is mostly or entirely decentralized.

Consider all the possible aspects of an application that may be decentralized:

  • Front-end software
  • Back-end software (logic)
  • Data storage
  • Name resolution
  • Message communications

What is Web3.js ?

web3.js is a collection of libraries which allow you to interact with a local or remote

ethereum node, using a HTTP or IPC connection.

Basic knowledge
  • This course is start from beginning so every student could joint
What you will learn

You will learn

  • Installation
  • The big picture
  • Network
  • Create web3 object
  • Local hosted with ganache
  • Remote hosted with infura
  • Account
  • Create new account
  • Get account balance
  • Wallet
  • Block chain
  • Block inspection
  • Subscribe block headers
  • Subscribe pending transactions
  • Contract
  • Create contract
  • Call method 
  • Sub event
  • Transaction
  • Transaction deploy contract
  • Transaction send ether
  • Transaction write to smart contract

Blockchain and Ethereum dapp right now are very hot technical trend. Developer with good skill of blockchain and Dapp very easy to get jobs with 6 figures. Are you interesting joining the huge innovation of Dapp ? Joint my course and I will show you.

  • Understand how to work with Ethereum account
  • Understand how to work with Ethereum blockchain
  • Understand how to work with Ethereum smart contract
  • Understand how to work with Ethereum transaction
Curriculum
Number of Lectures: 24
Total Duration: 02:03:55
Introduction and Installation
  • Introduction  
  • Install NodeJS  
  • Install Ganache  
  • Infura  

    Infura https://infura.io/

  • Install IDE - Visual Studio Code  

    visual studio code https://code.visualstudio.com/

  • Install Git  

    Git https://git-scm.com/

  • Install Web3Js  

    Web3Js document : https://web3js.readthedocs.io/en/1.0/getting-started.html

    web3js npm https://www.npmjs.com/package/web3


  • Resources - Source Code  

    Github - https://github.com/kennethhutw/Learn_web3js

Web3Js and Account
  • Create account  
  • Get Account Balance  
  • Wallet  
Web3js and Ethereum Blockchain
  • Web3js and Ethereum Blockchain -Introduction  
  • Block inspection  
  • Subscribe Block Headers  
  • Subscribe Pending Transactions  
  • Subscribe Logs  
Web3js and Smart Contract
  • Create Contract Object  
  • Method Call  
  • Subscribe Events  
Web3js and Transaction
  • Transaction Overview  
  • Transaction to Send Ether Part 1  
  • Transaction to Send Ether Part 2  
  • Transaction to Deploy Smart Contract  
  • Transaction to Execute Smart Contract  
Reviews (0)