Udemy - Blockchain for beginners:build certificate registration D...

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Blockchain for beginners:build certificate registration DApp

Use Ethereum, Solidity, and Smart Contracts to build Certificate Registration DApp based on the blockchain






What you'll learn

• Understand the basic concept of Blockchain and Ethereum
• Setup a private blockchain network for local development
• Understand how smart contract works and communicates with DApp
• Develop with the latest version of Ethereum development tools (Web3js v1.0 and Solidity v0.5.0)
• Develop a certification registration Dapp deployed to Ethereum testnet
• Understand how MetaMask communicates with your DApp

Requirements

• Basic Knowledge of Javascript and Yarn
• A Mac, PC, or Linux Machine (We use Mac in this course)

Description

What we cover
• We briefly cover the philosophy of the blockchain and Ethereum.
• Then we will explain how blockchains work, what is Decentralized App and how smart contract communicates with DApp
• We setup the easy development environment, including tools that can be used with minimum steps
• And the biggest part of the course is dedicated to guiding you through a simple Decentralized App

Some of the keyword definition:
Blockchain is a growing list of digital pieces of information which are linked using cryptography. It is an open, distributed ledger that can record transactions between two parties efficiently and also in a verifiable and permanent way.
Decentralized applications (dApps) are applications that run on blockchain rather than a database.
Smart contract is defined as pieces of computer code that self-execute when predetermined conditions are fulfilled. The results of the transaction will be written onto a distributed ledger or blockchain.

We covered the following concept:
• Ethereum
• Account
• Gas
• Smart Contract
• Decentralized App
• Blockchain
• Bitcoin
• Solidity
• Web3.js
• Ropsten Testnet
What tools and libraries are used?
• Ethereum
• The Metamask Chrome extension
• The Solidity smart contract language (0.5.0)
• The Web3.js(Web3 1.0.0)
• The Ganache Ethereum node emulator
• Github
• Visual Studio Code (text editor)
• The Ropsten test network
All our codes are stored in Github and the solidity code will be stored as .sol file.
• Lesson 2 unit 1: @hashcademy-> choose certificate_dapp -> choose branch master
• Lesson 2 unit 2: @hashcademy-> choose certificate_dapp -> before modify javascript:  choose branch 1a, after modify javascript: choose branch 2
• Lesson 2 unit 3: @hashcademy-> choose certificate_dapp -> choose branch 3
• Lesson 2 unit 4: @hashcademy-> choose certificate_dapp -> choose branch 4
• Lesson 2 unit 5: @hashcademy-> choose certificate_dapp -> choose branch 5

Who this course is for:

• Anybody with a little bit of website development experience who want to understand Ethereum and how to build DApps with it