https://github.com/samyoul/blockchain-north-east-solidity-for-beginners

https://github.com/samyoul/blockchain-north-east-solidity-for-beginners

contracts ethereum solidity tutorial

Last synced: 3 months ago
JSON representation

• Host: GitHub
• URL: https://github.com/samyoul/blockchain-north-east-solidity-for-beginners
• Owner: Samyoul
• Created: 2018-01-21T15:52:52.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2019-02-04T00:50:18.000Z (almost 6 years ago)
• Last Synced: 2023-10-20T22:58:04.653Z (over 1 year ago)
• Topics: contracts, ethereum, solidity, tutorial
• Language: HTML
• Size: 10.7 KB
• Stars: 3
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Blockchain-North-East-Solidity-For-Beginners

https://docs.google.com/presentation/d/1tZCOUgVF_1sgipIbyFr8JYp6vIibzg3VZ4SM9p_1tqA/edit?usp=sharing

## Things We’ll Cover

- Things you need to know

- Dependencies

- Link to code repository

- Benefits of Ethereum Smart Contracts

- Setup Development Environment

- Building The Smart Contract

- Building the Interface

- Summary

## Things You Need To Know

- Basic programming

  - Variables

  - Classes

  - Functions and methods

- HTML

- CSS

- JavaScript

- IDEs

## Dependencies and Tools

- Remix online Solidity IDE - https://remix.ethereum.org

- Ganache - http://truffleframework.com/ganache/

- Web3.js

- Twitter Bootstrap

## Link to Code Repository

https://github.com/Samyoul/Blockchain-North-East-Solidity-For-Beginners

## Applications of Ethereum Smart Contracts

**Applications**

- Finance

- Education

- Recruitment

- Medicine

- Gambling

## Setting Up the Development Environment

- Launch Remix

- Launch Ganache

## Building The Smart Contract

- Define the pragma

- Create the contract “BlockchainNorthEast”

- Set variables

  - organisers (mapping(address => bool))

  - attendees (mapping(address => bool))

  - attendeeCount (uint128)

- Getters

  - getAttendeeCount view

  - isAttendee view

  - isOrganiser view

- Setters

   -addAttendee - (as long as they are not in the list)

   -removedAttendee - (as long as they are in the list)

 -Modifiers

   -onlyByAttendee(address _address)

 -Demonstrate Remix test functionality

## Building the Interface

- Copy in some boilerplate HTML, includes TWBS for prettification

- Add web3.js (https://github.com/ethereum/web3.js/tree/1.0/dist)

- (https://raw.githubusercontent.com/ethereum/web3.js/1.0/dist/web3.min.js)

- Add provider / connect to a node

- Define ethereum account we will write with

- Define contract we will be working with

- Define contract location (Contract’s ethereum address)

- Interacting with the Ethereum contract methods.

- Getting data from the contract

- Setting data in the contract

- Displaying data from the contract

## Summary

- Uses and benefits of Ethereum Smart Contracts

- Basic Development Tools, Remix and Ganache

- Building a contract

  - Pragma

  - Variables

  - Getters

  - Setters

  - Modifiers

- Building a UI

  - Web3.js

  - Connecting to a node

  - Define Ethereum address, contract ABI, contract address

  - Interacting with the contract object with methods