Solidity Bootcamp

Program

Course/Ethereum Developer Program

§ Session Project Intro 2022-03-29 Tue 14:30

• Introduction to Blockchain Development
• EVM, bytecode, Solidity overview
• Using Hardhat as development environment
• Compiling and testing sample smart contract
• TASK Follow Hardhat tutorial https://hardhat.org/tutorial/

§ Session Storage/Memory allocation 2022-04-01 Fri 14:30

• Solidity deep dive
• storage vs memory allocation
• Aliasing vs copy of complex types, i.e., struct and array

§ Session ERC20 Token (Part 1) 2022-04-05 Tue 14:30

• Initial ERC20 token implementation
• EIP-20: Token Standard https://eips.ethereum.org/EIPS/eip-20
• mint, balanceOf, totalSupply
• Error handling in contracts & Reverting Transactions

§ Session ERC20 Token (Part 2) 2022-04-08 Fri 14:30

• Wrap up ERC20 token implementation
• transfer
• transferFrom, approve and allowance
• modifiers, owner and minter role
• Ownable
• Display in MetaMask wallet
• Write unit tests with Hardhat, Mocha and Chai

§ Session Remote Networks 2022-04-12 Tue 14:30

• Deploy and interact with a local and remote public network
• Testnet and mainnet
• Setting a wallet up with Metamask/Fuji
• Use Faucets to fund your account
• Kovan Faucet https://ethdrop.dev/
• Create a new account, public and private keyes
• Setup an infura/alchemy account
• Deploy to a remote public network
• Interact with a remote public network
• Test against a remote public network
• Q&A. OpenZeppelin impl, virtual and override, EIP-165 and supportsInterface
• TASK. Setup Metamask or Avalanche's Fuji Wallet, Infura/Alchemy, deploy, test and interact with a smart contract. Follow tutorial at https://hardhat.org/tutorial/deploying-to-a-live-network.html.

§ Session Private Keys 2022-04-14 Thu 11:30

• Hardhat & Ethers
• Private & Public Key generation
• Importing to MetaMask and Avalanche's Wallet
• Eliptic Curve background
• One-way/hash functions

§ Session Web3 App, Localhost network & MetaMask 2022-04-19 Tue 14:30

• Web App to interact with Smart Contracts
• Using Svelte as front end JS framework
• Using MetaMask to sign and send transactions
• Setting up a project to host both Front-end app and Hardhat contracts
• Deploy locally
• Local development network, Hardhat Network
• Local Hardhat accounts created

§ Session Security Analysis

• Security concerns
• Best practices
• Reentrancy
• Tools: Slither

§ Session Proxy Patterns

• OpenZeppelin Upgradeable contracts
• Contracts Slots

§ Session Gasless Approval

• Permit standard
• Signature structure
• Overview of Eliptic Curve Digital Signature Algoritm (ECDSA)
• Sign transactions
• Using MetaMask to sign transactions
• Validate signed transactions

Recommended Readings

Mastering Ethereum https://github.com/ethereumbook/ethereumbook is a book for developers, offering a guide to the operation and use of the Ethereum, Ethereum Classic, RootStock (RSK) and other compatible EVM-based open blockchains.

by Andreas M. Antonopoulos, also author of Mastering Bitcoin https://github.com/bitcoinbook/bitcoinbook and Gavin Wood, co-founder of Ethereum and early designer of Solidity.

Frequently Asked Questions

How does it prevent double-spend?

consensus forking

Topics

• What is a blockchain?
• What are transactions and blocks?
• How do P2P systems operate?
• The most prominent consensus mechanisms
• Difference between private, consortium, and public networks
• What does the data structure look like?
• How do Smart Contracts work?
• What is the Ethereum Virtual Machine?
• What is a Hash?
• How do public/private keys work?
• What is a Merkle tree?
• What is the double-spend problem?
• The Ethereum ecosystem and DApps
• What is Mist and how does it work?
• What is Ether, an account, a Faucet?

Basic Sample Hardhat Project

This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, a sample script that deploys that contract, and an example of a task implementation, which simply lists the available accounts.

Try running some of the following tasks:

npx hardhat accounts
npx hardhat compile
npx hardhat clean
npx hardhat test
npx hardhat node
node scripts/sample-script.js
npx hardhat help