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Welcome to the repository for the Ultimate Solidity, Blockchain, and Smart Contract - Beginner to Expert Full Course | Javascript Edition FreeCodeCamp course!
All code references have both a javascript and a typescript edition.
All code references have both a javascript and a typescript edition.
Recommended Testnet: Rinkeby
# Resources For This Course
### Questions
- [Github Discussions](https://github.com/smartcontractkit/full-blockchain-solidity-course-py/discussions)
- Ask questions and chat about the course here!
- [Stack Exchange Ethereum](https://ethereum.stackexchange.com/)
- Great place for asking technical questions about Ethereum
- [StackOverflow](https://stackoverflow.com/)
- Great place for asking technical questions overall
- [Github Discussions](https://github.com/smartcontractkit/full-blockchain-solidity-course-py/discussions)
- Ask questions and chat about the course here!
- [Stack Exchange Ethereum](https://ethereum.stackexchange.com/)
- Great place for asking technical questions about Ethereum
- [StackOverflow](https://stackoverflow.com/)
- Great place for asking technical questions overall
# Table of Contents
- [Resources For This Course](#resources-for-this-course)
- [Questions](#questions)
- [Table of Contents](#table-of-contents)
@ -76,223 +81,273 @@ All code references have both a javascript and a typescript edition.
- [Hackathons](#hackathons)
# Lesson 0: Welcome To Blockchain
## What is a Blockchain?
- [Bitcoin Whitepaper](https://bitcoin.org/bitcoin.pdf)
- [Ethereum Whitepaper](https://ethereum.org/en/whitepaper/)
- [Hybrid Smart Contracts](https://blog.chain.link/hybrid-smart-contracts-explained/)
- [Blockchain Oracles](https://betterprogramming.pub/what-is-a-blockchain-oracle-f5ccab8dbd72?source=friends_link&sk=d921a38466df8a9176ed8dd767d8c77d)
- [What is a blockchain](https://www.investopedia.com/terms/b/blockchain.asp)
## Making Your First Transaction
- [Metamask](https://metamask.io/)
- [Etherscan](https://etherscan.io/)
- [Rinkeby Etherscan](https://rinkeby.etherscan.io/)
- [Kovan Etherscan](https://kovan.etherscan.io/)
- Rinkeby Faucet (Check the [link token contracts page](https://docs.chain.link/docs/link-token-contracts/#rinkeby))
- NOTE: The Chainlink documentation always has the most up to date faucets on their [link token contracts page](https://docs.chain.link/docs/link-token-contracts/#rinkeby). If the faucet above is broken, check the chainlink documentation for the most up to date faucet.
- OR, use the [Kovan ETH Faucet](https://faucets.chain.link/), just be sure to swap your metamask to kovan!
- [Gas and Gas Fees](https://ethereum.org/en/developers/docs/gas/)
- [Wei, Gwei, and Ether Converter](https://eth-converter.com/)
- [ETH Gas Station](https://ethgasstation.info/)
## How Do Blockchains Work?
- [Blockchain Demo](https://andersbrownworth.com/blockchain/)
- [Public / Private Keys](https://andersbrownworth.com/blockchain/public-private-keys/keys)
- [Layer 2 and Rollups](https://ethereum.org/en/developers/docs/scaling/layer-2-rollups/)
- [Decentralized Blockchain Oracles](https://blog.chain.link/what-is-the-blockchain-oracle-problem/)
- [Block Rewards](https://www.investopedia.com/terms/b/block-reward.asp)
- [Run Your Own Ethereum Node](https://geth.ethereum.org/docs/getting-started)
### Consensus
- [Consensus](https://wiki.polkadot.network/docs/learn-consensus)
- [Proof of Stake](https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/)
- [Proof of Work](https://ethereum.org/en/developers/docs/consensus-mechanisms/pow/)
- [Nakamoto Consensus](https://blockonomi.com/nakamoto-consensus/)
- [Ethereum 2 (the merge)](https://ethereum.org/en/eth2/)
## What is a Blockchain?
- [Bitcoin Whitepaper](https://bitcoin.org/bitcoin.pdf)
- [Ethereum Whitepaper](https://ethereum.org/en/whitepaper/)
- [Hybrid Smart Contracts](https://blog.chain.link/hybrid-smart-contracts-explained/)
- [Blockchain Oracles](https://betterprogramming.pub/what-is-a-blockchain-oracle-f5ccab8dbd72?source=friends_link&sk=d921a38466df8a9176ed8dd767d8c77d)
- [What is a blockchain](https://www.investopedia.com/terms/b/blockchain.asp)
## Making Your First Transaction
- [Metamask](https://metamask.io/)
- [Etherscan](https://etherscan.io/)
- [Rinkeby Etherscan](https://rinkeby.etherscan.io/)
- [Kovan Etherscan](https://kovan.etherscan.io/)
- Rinkeby Faucet (Check the [link token contracts page](https://docs.chain.link/docs/link-token-contracts/#rinkeby))
- NOTE: The Chainlink documentation always has the most up to date faucets on their [link token contracts page](https://docs.chain.link/docs/link-token-contracts/#rinkeby). If the faucet above is broken, check the chainlink documentation for the most up to date faucet.
- OR, use the [Kovan ETH Faucet](https://faucets.chain.link/), just be sure to swap your metamask to kovan!
- [Gas and Gas Fees](https://ethereum.org/en/developers/docs/gas/)
- [Wei, Gwei, and Ether Converter](https://eth-converter.com/)
- [ETH Gas Station](https://ethgasstation.info/)
## How Do Blockchains Work?
- [Blockchain Demo](https://andersbrownworth.com/blockchain/)
- [Public / Private Keys](https://andersbrownworth.com/blockchain/public-private-keys/keys)
- [Layer 2 and Rollups](https://ethereum.org/en/developers/docs/scaling/layer-2-rollups/)
- [Decentralized Blockchain Oracles](https://blog.chain.link/what-is-the-blockchain-oracle-problem/)
- [Block Rewards](https://www.investopedia.com/terms/b/block-reward.asp)
- [Run Your Own Ethereum Node](https://geth.ethereum.org/docs/getting-started)
### Consensus
- [Consensus](https://wiki.polkadot.network/docs/learn-consensus)
- [Proof of Stake](https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/)
- [Proof of Work](https://ethereum.org/en/developers/docs/consensus-mechanisms/pow/)
- [Nakamoto Consensus](https://blockonomi.com/nakamoto-consensus/)
- [Ethereum 2 (the merge)](https://ethereum.org/en/eth2/)
# Lesson 1: [Welcome to Remix! Simple Storage](https://github.com/PatrickAlphaC/simple_storage)
💻 Code: https://github.com/PatrickAlphaC/simple_storage
### Everything in this section can be read about in the [Solidity Documentation](https://docs.soliditylang.org/en/v0.8.6/index.html)
### [Remix](https://remix.ethereum.org/)
### Basic Solidity
- Versioning
- Compiling
- Contract Declaration
- [Types & Declaring Variables](https://docs.soliditylang.org/en/v0.8.6/types.html)
- `uint256`, `int256`, `bool`, `string`, `address`, `bytes32`
- Default Initializations
- Comments
- Functions
- Deploying a Contract
- Calling a public state-changing Function
- [Visibility](https://docs.soliditylang.org/en/v0.7.3/contracts.html#visibility-and-getters)
- Scope
- View & Pure Functions
- Structs
- Intro to Storage
- Arrays - Dynamic & Fixed sized
- Compiler Errors and Warnings
- Memory
- Mappings
- SPDX License
- Recap
### Deploying to a "Live" network
- A testnet or mainnet
- [Find a faucet here](https://docs.chain.link/docs/link-token-contracts/#rinkeby)
- Connecting Metamask
- Interacting with Deployed Contracts
- The EVM
# Lesson 2: [Storage Factory](https://github.com/PatrickAlphaC/storage_factory)
💻 Code: https://github.com/PatrickAlphaC/storage_factory
### Inheritance, Factory Pattern, and Interacting with External Contracts
- Factory Pattern
- Imports
- Deploy a Contract From a Contract
- Interact With a Deployed Contract
- Recap
# Lesson 3: [Fund Me](https://github.com/PatrickAlphaC/fund_me)
💻 Code: https://github.com/PatrickAlphaC/fund_me
### Payable, msg.sender, msg.value, Units of Measure
- Payable
- [Wei/Gwei/Eth Converter](https://eth-converter.com/)
- msg.sender & msg.value
### Chainlink Oracles
- Decentralized Oracle Network Chainlink
- Blockchains can't make API calls
- Centralized Nodes are Points of Failure
- [data.chain.link](https://data.chain.link/)
- Getting External Data with Chainlink Oracles
- [Chainlink](https://docs.chain.link/)
- [Faucets and Contract Addresses](https://docs.chain.link/docs/link-token-contracts/)
- [Kovan](https://docs.chain.link/docs/link-token-contracts/#kovan)
- [Getting Price Information](https://docs.chain.link/docs/get-the-latest-price/)
### Importing from NPM and Advanced Solidity
- Decimals/Floating Point Numbers in Solidity
- latestRoundData
- Importing from NPM in Remix
- Interfaces
- Introduction to ABIs
- [Getting Price Feed Addresses](https://docs.chain.link/docs/reference-contracts/)
- getPrice
- Tuples
- Unused Tuple Variables
- Matching Units (WEI/GWEI/ETH)
- getConversionRate
- Matching Units (Continued)
- SafeMath & Integer Overflow
- using keyword
- [Libraries](https://docs.soliditylang.org/en/v0.8.6/contracts.html#libraries)
- SafeMath PSA
- Setting a Threshold
- Require
- Revert
- Withdraw Function
- Transfer
- Balance
- this
- Contract Owners
- Constructor
- ==
- Modifiers
- Resetting
- for loop
- Array Length
- Forcing a Transaction
- Recap
💻 Code: https://github.com/PatrickAlphaC/simple_storage
### Everything in this section can be read about in the [Solidity Documentation](https://docs.soliditylang.org/en/v0.8.6/index.html)
### [Remix](https://remix.ethereum.org/)
### Basic Solidity
- Versioning
- Compiling
- Contract Declaration
- [Types & Declaring Variables](https://docs.soliditylang.org/en/v0.8.6/types.html)
- `uint256`, `int256`, `bool`, `string`, `address`, `bytes32`
- Default Initializations
- Comments
- Functions
- Deploying a Contract
- Calling a public state-changing Function
- [Visibility](https://docs.soliditylang.org/en/v0.7.3/contracts.html#visibility-and-getters)
- Scope
- View & Pure Functions
- Structs
- Intro to Storage
- Arrays - Dynamic & Fixed sized
- Compiler Errors and Warnings
- Memory, storage, calldata
- Mappings
- SPDX License
- Recap
### Deploying to a "Live" network
- A testnet or mainnet
- [Find a faucet here](https://docs.chain.link/docs/link-token-contracts/#rinkeby)
- Connecting Metamask
- Interacting with Deployed Contracts
- The EVM
# Lesson 2: [Storage Factory](https://github.com/PatrickAlphaC/storage_factory)
💻 Code: https://github.com/PatrickAlphaC/storage_factory
### Inheritance, Factory Pattern, and Interacting with External Contracts
- Factory Pattern
- Imports
- Deploy a Contract From a Contract
- Interact With a Deployed Contract
- Recap
# Lesson 3: [Fund Me](https://github.com/PatrickAlphaC/fund_me)
💻 Code: https://github.com/PatrickAlphaC/fund_me
### Payable, msg.sender, msg.value, Units of Measure
- Payable
- [Wei/Gwei/Eth Converter](https://eth-converter.com/)
- msg.sender & msg.value
### Chainlink Oracles
- Decentralized Oracle Network Chainlink
- Blockchains can't make API calls
- Centralized Nodes are Points of Failure
- [data.chain.link](https://data.chain.link/)
- Getting External Data with Chainlink Oracles
- [Chainlink](https://docs.chain.link/)
- [Faucets and Contract Addresses](https://docs.chain.link/docs/link-token-contracts/)
- [Kovan](https://docs.chain.link/docs/link-token-contracts/#kovan)
- [Getting Price Information](https://docs.chain.link/docs/get-the-latest-price/)
### Importing from NPM and Advanced Solidity
- Decimals/Floating Point Numbers in Solidity
- latestRoundData
- Importing from NPM in Remix
- Interfaces
- Introduction to ABIs
- [Getting Price Feed Addresses](https://docs.chain.link/docs/reference-contracts/)
- getPrice
- Tuples
- Unused Tuple Variables
- Matching Units (WEI/GWEI/ETH)
- getConversionRate
- Matching Units (Continued)
- SafeMath & Integer Overflow
- using keyword
- [Libraries](https://docs.soliditylang.org/en/v0.8.6/contracts.html#libraries)
- SafeMath PSA
- Setting a Threshold
- Require
- Revert
- Withdraw Function
- Transfer
- Balance
- this
- Contract Owners
- Constructor
- ==
- Modifiers
- Resetting
- for loop
- Array Length
- Forcing a Transaction
- Recap
# Lesson 4: [Web3.js Simple Storage]()
💻 Code:
💻 Code:
### Installing VSCode, Python, and Web3
- [Developer Bootcamp Setup Instructions (metamask, vscode, python, nodejs..)](https://chain.link/bootcamp/brownie-setup-instructions)
- [VSCode](https://code.visualstudio.com/download)
- [VSCode Crash Course](https://www.youtube.com/watch?v=WPqXP_kLzpo)
- Extensions
- Short Cuts:
- [VSCode Shortcuts](https://code.visualstudio.com/docs/getstarted/keybindings)
- [VSCode MacOS Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-macos.pdf)
- [Python](https://www.python.org/downloads/)
- Install Troubleshooting
- Terminal
- Making a directory/Folder
- Opening the folder up with VSCode
- Creating a new file
- Syntax Highlights
- Remember to save!
- Setting linting compile version
- VSCode Solidity Settings
- Formatting & Format on Save
- Solidity Prettier
- [Python Black](https://pypi.org/project/black/)
- [pip](https://pypi.org/project/pip/)
- [Developer Bootcamp Setup Instructions (metamask, vscode, python, nodejs..)](https://chain.link/bootcamp/brownie-setup-instructions)
- [VSCode](https://code.visualstudio.com/download)
- [VSCode Crash Course](https://www.youtube.com/watch?v=WPqXP_kLzpo)
- Extensions
- Short Cuts:
- [VSCode Shortcuts](https://code.visualstudio.com/docs/getstarted/keybindings)
- [VSCode MacOS Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-macos.pdf)
- [Python](https://www.python.org/downloads/)
- Install Troubleshooting
- Terminal
- Making a directory/Folder
- Opening the folder up with VSCode
- Creating a new file
- Syntax Highlights
- Remember to save!
- Setting linting compile version
- VSCode Solidity Settings
- Formatting & Format on Save
- Solidity Prettier
- [Python Black](https://pypi.org/project/black/)
- [pip](https://pypi.org/project/pip/)
### Our First Python Script with Web3.js - Deploying a Contract
- Reading our solidity file
- Running a Python Script in the Terminal
- [MaxOS Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-macos.pdf)
- [Windows Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-windows.pdf)
- [Linux Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-linux.pdf)
- Compiling in Python
- [py-solc-x](https://pypi.org/project/py-solc-x/)
- compile_standard
- Colorized Brackets
- JSON ABI
- Saving Compiled Code
- Formatting JSON
- Reading our solidity file
- Running a Python Script in the Terminal
- [MaxOS Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-macos.pdf)
- [Windows Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-windows.pdf)
- [Linux Shortcuts](https://code.visualstudio.com/shortcuts/keyboard-shortcuts-linux.pdf)
- Compiling in Python
- [py-solc-x](https://pypi.org/project/py-solc-x/)
- compile_standard
- Colorized Brackets
- JSON ABI
- Saving Compiled Code
- Formatting JSON
### Interacting with Our Contract in Javascript & Web3.js
# Lesson 5: [Hardhat Simple Storage]()
### Hardhat Introduction
### Installing Hardhat
### Testing Basics
### [Hardhat console]
- `brownie console`
### Hardhat Introduction
### Installing Hardhat
### Testing Basics
### [Hardhat console]
- `brownie console`
# Lesson 6: [Hardhat Fund Me]()
### Introduction
- Setup
### Dependencies, Deploying, and Networks
### Funding and Withdrawing Javascript Scripts
### Testing across networks
### Git
- Tweet it out!
- Setup
### Dependencies, Deploying, and Networks
### Funding and Withdrawing Javascript Scripts
### Testing across networks
### Git
- Tweet it out!
# Lesson 7: SmartContract Lottery
💻 Code:
💻 Code:
### Introduction
- Add a `README.md`
- Defining the project
- Is it decentralized?
- Add a `README.md`
- Defining the project
- Is it decentralized?
### `Lottery.sol`
# Lesson 8: Full Stack Introduction
# Lesson 8: Full Stack Introduction
# Lesson 9: Full Stack Lottery
# Lesson 9: Full Stack Lottery
# Lesson 10: [Hardhat Starter Kit](https://github.com/smartcontractkit/hardhat-starter-kit)
# Lesson 10: [Hardhat Starter Kit](https://github.com/smartcontractkit/hardhat-starter-kit)
💻 Code: https://github.com/smartcontractkit/hardhat-starter-kit
# Lesson 11: [ERC20s, EIPs, and Token Standards]()
💻 Code:
-
💻 Code:
-
# Lesson 12: [Defi & Aave]()
💻 Code:
💻 Code:
### Defi Intro
- [Defipulse](https://defipulse.com/)
- [Defillama](https://defillama.com/)
- [Aave Testnet Site](https://testnet.aave.com/)
- [Paraswap](https://paraswap.io/)
- Decentralized Exchange
- [Defipulse](https://defipulse.com/)
- [Defillama](https://defillama.com/)
- [Aave Testnet Site](https://testnet.aave.com/)
- [Paraswap](https://paraswap.io/)
- Decentralized Exchange
# Lesson 13: [NFTs]()
💻 Code
# Lesson 14: NFT Marketplace
# Lesson 15: [Upgrades](https://github.com/PatrickAlphaC/upgrades-mix)
💻 Code: https://github.com/PatrickAlphaC/upgrades-mix
# Lesson 16 [DAOs]
@ -311,41 +366,48 @@ All code references have both a javascript and a typescript edition.
- [OpenZeppelin](https://openzeppelin.com/)
- [SigmaPrime](https://sigmaprime.io/)
- [Trail of Bits](https://www.trailofbits.com/) -->
## Where do I go now?
### Learning More
- [CryptoZombies](https://cryptozombies.io/)
- [Dapp University](https://www.youtube.com/channel/UCY0xL8V6NzzFcwzHCgB8orQ)
- [ChainShot](https://www.chainshot.com/courses)
- [Ivan on Tech](https://academy.ivanontech.com/)
- [Eat the Blocks](https://www.youtube.com/channel/UCZM8XQjNOyG2ElPpEUtNasA)
- [Patrick Collins](https://www.youtube.com/channel/UCn-3f8tw_E1jZvhuHatROwA)
- [Austin Griffith](https://www.youtube.com/channel/UC_HI2i2peo1A-STdG22GFsA)
- [Nader Dabit](https://www.youtube.com/user/boyindasouth)
- [Ethereum.org](https://ethereum.org/en/)
- [CryptoZombies](https://cryptozombies.io/)
- [Dapp University](https://www.youtube.com/channel/UCY0xL8V6NzzFcwzHCgB8orQ)
- [ChainShot](https://www.chainshot.com/courses)
- [Ivan on Tech](https://academy.ivanontech.com/)
- [Eat the Blocks](https://www.youtube.com/channel/UCZM8XQjNOyG2ElPpEUtNasA)
- [Patrick Collins](https://www.youtube.com/channel/UCn-3f8tw_E1jZvhuHatROwA)
- [Austin Griffith](https://www.youtube.com/channel/UC_HI2i2peo1A-STdG22GFsA)
- [Nader Dabit](https://www.youtube.com/user/boyindasouth)
- [Ethereum.org](https://ethereum.org/en/)
### Community
- Twitter
- [Brownie Discord](https://discord.gg/9zk7snTfWe)
- [Ethereum Discord](https://ethereum.org/en/)
- [Chainlink Discord](https://discord.gg/2YHSAey)
- [Reddit ethdev](https://www.reddit.com/r/ethdev/)
- Twitter
- [Brownie Discord](https://discord.gg/9zk7snTfWe)
- [Ethereum Discord](https://ethereum.org/en/)
- [Chainlink Discord](https://discord.gg/2YHSAey)
- [Reddit ethdev](https://www.reddit.com/r/ethdev/)
### Hackathons
- [CL Hackathon](https://chain.link/hackathon)
- [ETH Global](https://ethglobal.co/)
- [ETH India](https://twitter.com/ETHIndiaco)
- [CL Hackathon](https://chain.link/hackathon)
- [ETH Global](https://ethglobal.co/)
- [ETH India](https://twitter.com/ETHIndiaco)
Be sure to check out project grant programs!
And make today an amazing day!
Improvements from the Python edition:
1. Videos are split into 2 -> 15 minute sections
2. Javascript & Typescript edition of code
1. Videos are split into 2 -> 15 minute sections
2. Javascript & Typescript edition of code
3. Deeper explainer of:
1. Stackoverflow
2. Stack Exchange ETH
3. How to ask good questions & get help
4. Aave lesson improvements
1. Stackoverflow
2. Stack Exchange ETH
3. How to ask good questions & get help
4. Aave lesson improvements
5. Fundme lesson improvements
6. Not using sleep to wait for tx to complete
7. Front end stuff