Blockchain for beginners:build certificate registration DApp
4.0 (28 ratings)
Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.
6,942 students enrolled

Blockchain for beginners:build certificate registration DApp

Use Ethereum, Solidity, and Smart Contracts to build Certificate Registration DApp based on the blockchain
4.0 (28 ratings)
Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.
6,942 students enrolled
Last updated 1/2019
English
English [Auto-generated]
Current price: Free Original price: $19.99 Discount: 100% off
30-Day Money-Back Guarantee
This course includes
  • 1.5 hours on-demand video
  • 2 articles
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
Training 5 or more people?

Get your team access to Udemy's top 3,000+ courses anytime, anywhere.

Try Udemy for Business
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
Course content
Expand all 11 lectures 01:35:58
+ Introduction
1 lecture 00:22

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

Before the course
00:22
+ Build a certificate registration decentralized application on Ethereum
8 lectures 01:22:30

Github source code provided in external resources

Preview 16:10

Github source code provided in external resources

Create a web UI to access the contract with web3.js
19:22

Github source code provided in external resources

Add Event in our DApp
07:00

Github source code provided in external resources

Add Constructor and Function Modifier
08:47

Github source code provided in lecture 10 external resources

Refactor the DApp with Inheritance and Mapping - Part 1
04:26

Github source code provided in lecture 10 external resources

Refactor the DApp with Inheritance and Mapping - Part 2
05:43

Github source code provided in external resources

Refactor the DApp with Inheritance and Mapping - Part 3
07:53
Deploy your contract on Ropsten Testnet
13:09
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