Solidity Tutorials

This is my follow along from multiple solidity tutorials.

Info

CTRL+Shift+P > 'keyboard shortcuts' VS KeyBoard Shortcuts:here

settings > 'python formatting' > 'python>formatting: black'

-pip install py-solc-x (more actively maintained than py-solc)

1. Simple Storage.

basic set and retrieve contract
storage factory contract to create muliple simple storage contracts for different users.

2. Fund Me

a contract that can get funding over a specific amount.

3. Web3.py

Deploy Simple Storage with Python
- pip install black
In VS Code,

Brownie

Interact with SimpleStorage using brownie framework

Commands

- init               Initialize a new brownie project
- bake               Initialize from a brownie-mix template
- pm                 Install and manage external packages
- compile            Compile the contract source files
- console            Load the console
- test               Run test cases in the tests/ folder
- run                Run a script in the scripts/ folder
- accounts           Manage local accounts
    -list
- networks           Manage network settings
    -list
- gui                Load the GUI to view opcodes and test coverage
- analyze            Find security vulnerabilities using the MythX API

-Deploying to testnet/mainnet brownie run SCRIPT --network rinkeby

Brownie Fund Me

import FundMe contract and deploy.
verify smart contract on Etherscan

Manually Verify

Verify Contract: HERE
Enter code for smart contract
- imports with '@' wont work! Etherscan doesnt know NPM
- Code needs to be flattened

Brownie Verify

Get API Key from Etherscan.io
Add API key to .env file
Add Publish to contract deployment

Verify on local ganache

2 Problems: - priceFeed contract address is hardcoded to rinkeby network - not on the local ganache brownie uses Solutions - Forking - Mocking

paramaterize the FundMe smart contract
- add to constructor which price feed to use on deploy
pass price feed address on deploy function
create addresses for different newtorks in brownie-config.yaml
if not on development network us a mock

Mock contracts go in contracts/test folder

publish source also must be determined by current chain set in brownie-config.yaml
add deploy mock to functions.py

Adding networks to brownie

'brownie networks add '

DTIV/SolidityTutorial