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# Contributor Covenant Code of Conduct
## Our Pledge
We as members, contributors, and leaders pledge to make participation in our
community a harassment-free experience for everyone, regardless of age, body
size, visible or invisible disability, ethnicity, sex characteristics, gender
identity and expression, level of experience, education, socio-economic status,
nationality, personal appearance, race, religion, or sexual identity
and orientation.
We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.
## Our Standards
Examples of behavior that contributes to a positive environment for our
community include:
* Demonstrating empathy and kindness toward other people
* Being respectful of differing opinions, viewpoints, and experiences
* Giving and gracefully accepting constructive feedback
* Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
* Focusing on what is best not just for us as individuals, but for the
overall community
Examples of unacceptable behavior include:
* The use of sexualized language or imagery, and sexual attention or
advances of any kind
* Trolling, insulting or derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or email
address, without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Enforcement Responsibilities
Community leaders are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate, threatening, offensive,
or harmful.
Community leaders have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will communicate reasons for moderation
decisions when appropriate.
## Scope
This Code of Conduct applies within all community spaces, and also applies when
an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail address,
posting via an official social media account, or acting as an appointed
representative at an online or offline event.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at
.
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the
reporter of any incident.
## Enforcement Guidelines
Community leaders will follow these Community Impact Guidelines in determining
the consequences for any action they deem in violation of this Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community leaders, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series
of actions.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or
permanent ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating a pattern of violation of community
standards, including sustained inappropriate behavior, harassment of an
individual, or aggression toward or disparagement of classes of individuals.
**Consequence**: A permanent ban from any sort of public interaction within
the community.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.0, available at
https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
Community Impact Guidelines were inspired by [Mozilla's code of conduct
enforcement ladder](https://github.com/mozilla/diversity).
[homepage]: https://www.contributor-covenant.org
For answers to common questions about this code of conduct, see the FAQ at
https://www.contributor-covenant.org/faq. Translations are available at
https://www.contributor-covenant.org/translations.

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# How do I make a contribution?
Never made an open source contribution before? Wondering how contributions work in the in our project? Here's a quick rundown!
- Find an issue that you are interested in addressing or a feature that you would like to add.
- Fork the repository associated with the issue to your local GitHub organization. This means that you will have a copy of the repository under `your-GitHub-username/repository-name`.
- Clone the repository to your local machine using `git clone https://github.com/github-username/repository-name.git`.
- Create a new branch for your fix using `git checkout -b branch-name-here`.
- Make the appropriate changes for the issue you are trying to address or the feature that you want to add.
- Use `git add insert-paths-of-changed-files-here` to add the file contents of the changed files to the "snapshot" git uses to manage the state of the project, also known as the index.
- Use `git commit -m "Insert a short message of the changes made here"` to store the contents of the index with a descriptive message.
- Push the changes to the remote repository using `git push origin branch-name-here`.
- Submit a pull request to the upstream repository.
- Title the pull request with a short description of the changes made and the issue or bug number associated with your change. For example, you can title an issue like so **"Added more log outputting to resolve #4352"**.
- In the description of the pull request, explain the changes that you made, any issues you think exist with the pull request you made, and any questions you have for the maintainer. It's OK if your pull request is not perfect (no pull request is), the reviewer will be able to help you fix any problems and improve it!
- Wait for the pull request to be reviewed by a maintainer.
- Make changes to the pull request if the reviewing maintainer recommends them.
- Celebrate your success after your pull request is merged!
# Where can I go for help?
If you need help, you can ask questions on our **discussions** tab.

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<!-- [YouTube Video](https://www.youtube.com/watch?v=M576WGiDBdQ) -->
<!-- <br/>
<p align="center">
<a href="https://www.youtube.com/watch?v=M576WGiDBdQ" target="_blank">
<img src="./img/youtube_thumbnail.jpeg" width="350" alt="Solidity, Blockchain, and Smart Contract Course – Beginner to Expert Python Tutorial">
</a>
</p>
<br/> -->
# Web3, Full Stack Solidity, Smart Contract & Blockchain - Beginner to Expert ULTIMATE Course | Javascript Edition
@@ -25,12 +15,14 @@ Welcome to the repository for the Ultimate Web3, Full Stack Solidity, and Smart
All code references have both a javascript and a typescript edition.
Recommended Testnet: Rinkeby
Recommended Testnet: Goerli
*We have updated the repos to work with Goerli due to Rinkeby and Kovan being sunset. Let us know if any of the changes break stuff!*
# [Testnet Faucets](https://faucets.chain.link)
Main Faucet: https://faucets.chain.link
Backup Faucet: https://rinkebyfaucet.com/
Backup Faucet: https://goerlifaucet.com/
> ⚠️ All code associated with this course is for demo purposes only. They have not been audited and should not be considered production ready. Please use at your own risk.
@@ -308,7 +300,7 @@ Backup Faucet: https://rinkebyfaucet.com/
</li>
<li><a href="#rafflesol-staging-tests">Raffle.sol Staging Tests</a></li>
<li><a href="#testing-on-a-testnet">Testing on a Testnet</a><ul>
<li><a href="#recommended-link-amounts-for-rinkeby-staging-test">Recommended LINK amounts for Rinkeby Staging Test:</a></li>
<li><a href="#recommended-link-amounts-for-goerli-staging-test">Recommended LINK amounts for Goerli Staging Test:</a></li>
</ul>
</li>
<li><a href="#conclusion">Conclusion</a></li>
@@ -551,6 +543,7 @@ Backup Faucet: https://rinkebyfaucet.com/
- [What is a blockchain](https://www.investopedia.com/terms/b/blockchain.asp)
## The Purpose Of Smart Contracts
*[⌨️ (00:18:27) The Purpose of Smart Contracts](https://youtu.be/gyMwXuJrbJQ?t=1107)*
- 🎥 [Original Video](https://www.youtube.com/watch?v=_JeRq7Gwj5Y&feature=youtu.be)
- 🦬 [My ETH Denver Talk](https://www.youtube.com/watch?v=06hXCX_jj2E)
- 🍔 [McDonalds Scandal](https://www.chicagotribune.com/sns-mcdonalds-story.html)
@@ -560,6 +553,7 @@ Backup Faucet: https://rinkebyfaucet.com/
- 🔮 [Chainlink & Oracles](https://www.youtube.com/watch?v=tIUHQ7sDoaU)
## Other Blockchain Benefits
*[⌨️ (00:30:41) Other Blockchain Benefits](https://youtu.be/gyMwXuJrbJQ?t=1841)*
- Decentralized
- Transparency & Flexibility
- Speed & Efficiency
@@ -567,7 +561,8 @@ Backup Faucet: https://rinkebyfaucet.com/
- Counterparty Risk Removal
- Trust Minimized Agreements
## What have Smart Contracts done so far?
## What have Smart Contracts done so far?
*[⌨️ (00:36:36) What have Smart Contracts done so far?](https://youtu.be/gyMwXuJrbJQ?t=2196)*
- [DeFi](https://chain.link/education/defi)
- [Defi Llama](https://defillama.com/)
- [Why DeFi is Important](https://medium.com/the-capital/why-defi-1519cc4d4bd3)
@@ -575,41 +570,47 @@ Backup Faucet: https://rinkebyfaucet.com/
- [NFTs](https://www.youtube.com/watch?v=9yuHz6g_P50)
## Making Your First Transaction
*[⌨️ (00:39:17) Making Your First Transaction](https://youtu.be/gyMwXuJrbJQ?t=2357)*
- [Metamask Download Link](https://metamask.io/)
- [What is a Private Key?](https://www.coinbase.com/learn/crypto-basics/what-is-a-private-key)
- [What is a Secret Phrase?](https://metamask.zendesk.com/hc/en-us/articles/360060826432-What-is-a-Secret-Recovery-Phrase-and-how-to-keep-your-crypto-wallet-secure)
- [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!
- [Goerli Etherscan](https://goerli.etherscan.io/)
- Goerli Faucet (Check the [link token contracts page](https://docs.chain.link/docs/link-token-contracts/#goerli))
- 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/#goerli). If the faucet above is broken, check the chainlink documentation for the most up to date faucet.
- OR, use the [Goerli ETH Faucet](https://faucets.chain.link/), just be sure to swap your metamask to goerli!
## Gas I: Introduction to Gas
*[⌨️ (00:58:59) Gas I: Introduction to Gas](https://youtu.be/gyMwXuJrbJQ?t=3539)*
- [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?
*[⌨️ (01:05:32) How Do Blockchains Work](https://youtu.be/gyMwXuJrbJQ?t=3932)*
- [What is a hash?](https://techjury.net/blog/what-is-cryptographic-hash/)
- [Blockchain Demo](https://andersbrownworth.com/blockchain/)
- [Summary](https://ethereum.org/en/developers/docs/intro-to-ethereum/)
## Signing Transactions
*[⌨️ (01:22:55) Signing Transactions](https://youtu.be/gyMwXuJrbJQ?t=4975)*
- [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/)
## Gas II
*[⌨️ (01:30:22) Gas II: Block Rewards & EIP 1559](https://youtu.be/gyMwXuJrbJQ?t=5422)*
- [Block Rewards](https://www.investopedia.com/terms/b/block-reward.asp)
- Advanced Gas
- [EIP 1559](https://www.youtube.com/watch?v=MGemhK9t44Q)
- GWEI, WEI, and ETH
- [ETH Converter](https://eth-converter.com/)
## Gas II Summary
*[⌨️ (01:36:44) Gas II Summary](https://youtu.be/gyMwXuJrbJQ?t=5804)*
- [Run Your Own Ethereum Node](https://geth.ethereum.org/docs/getting-started)
## High-Level Blockchain Fundamentals
*[⌨️ (01:39:32) High-Level Blockchain Fundamentals]https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=5972s()*
- [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/)
@@ -627,7 +628,7 @@ Backup Faucet: https://rinkebyfaucet.com/
## Introduction
*[⌨️ (02:03:05) Introduction](https://youtu.be/gyMwXuJrbJQ?t=7385)*
- [Remix](https://remix.ethereum.org/)
- [Solidity Documentation](https://docs.soliditylang.org/en/v0.8.6/index.html)
- [Solidity Documentation](https://docs.soliditylang.org/en/latest/index.html)
## Setting Up Your First Contract
*[⌨️ (02:05:18) Setting Up Your First Contract](https://youtu.be/gyMwXuJrbJQ?t=7518)*
@@ -653,7 +654,7 @@ Backup Faucet: https://rinkebyfaucet.com/
- Deploying a Contract
- Smart Contracts have addresses just like our wallets
- Calling a public state-changing Function
- [Visibility](https://docs.soliditylang.org/en/v0.7.3/contracts.html#visibility-and-getters)
- [Visibility](https://docs.soliditylang.org/en/latest/contracts.html#visibility-and-getters)
- Gas III | An example
- Scope
- View & Pure Functions
@@ -690,7 +691,7 @@ Backup Faucet: https://rinkebyfaucet.com/
*[⌨️ (02:53:38) Deploying your First Contract](https://youtu.be/gyMwXuJrbJQ?t=10418)*
- A testnet or mainnet
- Connecting Metamask
- [Find a faucet here](https://docs.chain.link/docs/link-token-contracts/#rinkeby)
- [Find a faucet here](https://docs.chain.link/docs/link-token-contracts/#goerli)
- See the faucets at the top of this readme!
- Interacting with Deployed Contracts
@@ -709,16 +710,16 @@ Backup Faucet: https://rinkebyfaucet.com/
## Basic Solidity: Importing Contracts into other Contracts
- [Composibility](https://chain.link/techtalks/defi-composability)
- [Solidity new keyword](https://docs.soliditylang.org/en/v0.8.14/control-structures.html?highlight=new#creating-contracts-via-new)
- [Solidity new keyword](https://docs.soliditylang.org/en/latest/control-structures.html?highlight=new#creating-contracts-via-new)
- [Importing Code in solidity](https://solidity-by-example.org/import)
## Basic Solidity: Interacting with other Contracts
- To interact, you always need: ABI + Address
- [ABI](https://docs.soliditylang.org/en/v0.8.14/abi-spec.html?highlight=abi)
- [ABI](https://docs.soliditylang.org/en/latest/abi-spec.html?highlight=abi)
## Basic Solidity: Inheritance & Overrides
- [Inheritance](https://solidity-by-example.org/inheritance)
- [Override & Virtual Keyword](https://docs.soliditylang.org/en/v0.8.14/contracts.html?highlight=override#function-overriding)
- [Override & Virtual Keyword](https://docs.soliditylang.org/en/latest/contracts.html?highlight=override#function-overriding)
## Lesson 3 Recap
@@ -734,7 +735,7 @@ Backup Faucet: https://rinkebyfaucet.com/
- [Fields in a Transaction](https://ethereum.org/en/developers/docs/transactions/)
- [More on v,r,s](https://ethereum.stackexchange.com/questions/15766/what-does-v-r-s-in-eth-gettransactionbyhash-mean)
- [payable](https://solidity-by-example.org/payable)
- [msg.value & Other global keywords](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=cheatsheet#global-variables)
- [msg.value & Other global keywords](https://docs.soliditylang.org/en/latest/cheatsheet.html?highlight=cheatsheet#global-variables)
- [require](https://codedamn.com/news/solidity/what-is-require-in-solidity)
- [revert](https://medium.com/blockchannel/the-use-of-revert-assert-and-require-in-solidity-and-the-new-revert-opcode-in-the-evm-1a3a7990e06e)
@@ -760,15 +761,15 @@ Backup Faucet: https://rinkebyfaucet.com/
## Importing from GitHub & NPM
- [Chainlink NPM Package](https://www.npmjs.com/package/@chainlink/contracts)
## Floating Point Math in Solidtiy
- [tuple](https://docs.soliditylang.org/en/v0.8.14/abi-spec.html?highlight=tuple#handling-tuple-types)
## Floating Point Math in Solidity
- [tuple](https://docs.soliditylang.org/en/latest/abi-spec.html?highlight=tuple#handling-tuple-types)
- [Floating Point Numbers in Solidity](https://stackoverflow.com/questions/58277234/does-solidity-supports-floating-point-number)
- [Type Casting](https://ethereum.stackexchange.com/questions/6891/type-casting-in-solidity)
- Gas Estimation Failed
- Someone should make an article explaining this error
## Basic Solidity: Arrays & Structs II
- [msg.sender](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=msg.sender)
- [msg.sender](https://docs.soliditylang.org/en/latest/cheatsheet.html?highlight=msg.sender)
## Review of Interfaces, Importing from GitHub, & Math in Solidity
@@ -778,7 +779,7 @@ Backup Faucet: https://rinkebyfaucet.com/
## SafeMath, Overflow Checking, and the "unchecked" keyword
- [Openzeppelin Safemath](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeMath.sol)
- [unchecked vs. checked](https://docs.soliditylang.org/en/v0.8.0/control-structures.html#checked-or-unchecked-arithmetic)
- [unchecked vs. checked](https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic)
## Basic Solidity: For Loop
- [For Loop](https://solidity-by-example.org/loop)
@@ -813,9 +814,9 @@ Backup Faucet: https://rinkebyfaucet.com/
- [Custom Errors Introduction](https://blog.soliditylang.org/2021/04/21/custom-errors/)
### Receive & Fallback Functions
- [Solidity Docs Special Functions](https://docs.soliditylang.org/en/v0.8.14/contracts.html?highlight=fallback#special-functions)
- [Solidity Docs Special Functions](https://docs.soliditylang.org/en/latest/contracts.html?highlight=fallback#special-functions)
- [Fallback](https://solidity-by-example.org/fallback)
- [Receive](https://docs.soliditylang.org/en/v0.8.14/contracts.html?highlight=fallback#receive-ether-function)
- [Receive](https://docs.soliditylang.org/en/latest/contracts.html?highlight=fallback#receive-ether-function)
## Lesson 4 Recap
@@ -1040,10 +1041,13 @@ yarn add --dev @typechain/ethers-v5 @typechain/hardhat @types/chai @types/node @
## Testnet Demo - Hardhat Fund Me
*[⌨️ (10:55:45) Testnet Demo - Hardhat Fund Me](https://youtu.be/gyMwXuJrbJQ?t=39345)*
- Hardhat Deploy Block Confirmations
### TypeScript
- [Code file](https://github.com/PatrickAlphaC/hardhat-fund-me-fcc/blob/84271e7002e55d86c90b26466ff27bc067f25de0/deploy/01-deploy-fund-me.ts#L29) (TypeScript edition)
- Define blockConfirmations in the `helper-hardhat-config.ts` file instead of `hardhat-config.js`.
## Solidity Style Guide
*[⌨️ (11:00:10) Solidity Style Guide](https://youtu.be/gyMwXuJrbJQ?t=39610)*
- [Style Guide](https://docs.soliditylang.org/en/v0.8.15/style-guide.html)
- [NatSpec](https://docs.soliditylang.org/en/v0.8.15/natspec-format.html)
- [Style Guide](https://docs.soliditylang.org/en/latest/style-guide.html)
- [NatSpec](https://docs.soliditylang.org/en/latest/natspec-format.html)
## Testing Fund Me
*[⌨️ (11:08:36) Testing Fund Me](https://youtu.be/gyMwXuJrbJQ?t=40116)*
- [Unit Testing](https://en.wikipedia.org/wiki/Unit_testing)
@@ -1066,7 +1070,7 @@ yarn add --dev @typechain/ethers-v5 @typechain/hardhat @types/chai @types/node @
*[⌨️ (11:37:31) Testing Fund Me II](https://youtu.be/gyMwXuJrbJQ?t=41851)*
## Storage in Solidity
*[⌨️ (11:44:34) Storage in Solidity](https://youtu.be/gyMwXuJrbJQ?t=42274)*
- [Storage Layout](https://docs.soliditylang.org/en/v0.8.13/internals/layout_in_storage.html)
- [Storage Layout](https://docs.soliditylang.org/en/latest/internals/layout_in_storage.html)
- [Purpose of the memory keyword](https://stackoverflow.com/questions/33839154/in-ethereum-solidity-what-is-the-purpose-of-the-memory-keyword)
- [getStorageAt](https://docs.ethers.io/v5/api/providers/provider/#Provider-getStorageAt)
## Gas Optimizations using Storage Knowledge
@@ -1177,13 +1181,13 @@ yarn add --dev @nomiclabs/hardhat-ethers@npm:hardhat-deploy-ethers ethers @nomic
## Implementing Chainlink VRF - The Request
## Implementing Chainlink VRF - The FulFill
### Modulo
- [Modulo](https://docs.soliditylang.org/en/v0.8.13/types.html?highlight=modulo#modulo)
- [Modulo](https://docs.soliditylang.org/en/latest/types.html?highlight=modulo#modulo)
## Introduction to Chainlink Keepers
- [Chainlink Keepers Docs](https://docs.chain.link/docs/chainlink-keepers/introduction/)
- [Chainlink Keepers Walkthrough](https://www.youtube.com/watch?v=-Wkw5JVQGUo)
## Implementing Chainlink Keepers - checkUpkeep
### Enums
- [Enum](https://docs.soliditylang.org/en/v0.8.13/structure-of-a-contract.html?highlight=enum#enum-types)
- [Enum](https://docs.soliditylang.org/en/latest/structure-of-a-contract.html?highlight=enum#enum-types)
## Implementing Chainlink Keepers - checkUpkeep continued
- block.timestamp
## Implementing Chainlink Keepers - performUpkeep
@@ -1208,7 +1212,7 @@ yarn add --dev @nomiclabs/hardhat-ethers@npm:hardhat-deploy-ethers ethers @nomic
### Continued IV
## Raffle.sol Staging Tests
## Testing on a Testnet
### Recommended LINK amounts for Rinkeby Staging Test:
### Recommended LINK amounts for Goerli Staging Test:
- Chainlink VRF: 2 LINK
- Chainlink Keepers: 8 LINK
## Conclusion
@@ -1363,7 +1367,7 @@ yarn create next-app .
- [DAI](https://makerdao.com/en/)
- [Uniswap](https://app.uniswap.org/)
## WETH - Wrapped ETH
- [WETH Token Rinkeby Etherscan](https://rinkeby.etherscan.io/token/0xc778417e063141139fce010982780140aa0cd5ab#writeContract)
- [WETH Token Goerli Etherscan](https://goerli.etherscan.io/token/0x8b7fb00abb67ba04ce894b9e2769fe24a8409a6a)
- [WETH Token Mainnet](https://etherscan.io/token/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2)
## Forking Mainnet
- [Mainnet Forking](https://hardhat.org/hardhat-network/guides/mainnet-forking.html)
@@ -1428,14 +1432,14 @@ yarn create next-app .
- [base64-sol](https://www.npmjs.com/package/base64-sol/v/1.0.1)
## Advanced: EVM Opcodes, Encoding, and Calling
### abi.encode & abi.encodePacked
- [abi.encode](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=cheatsheet#global-variables)
- [abi.encodePacked](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=cheatsheet#global-variables)
- [abi.encode](https://docs.soliditylang.org/en/latest/cheatsheet.html?highlight=cheatsheet#global-variables)
- [abi.encodePacked](https://docs.soliditylang.org/en/latest/cheatsheet.html?highlight=cheatsheet#global-variables)
Thanks to [Alex Roan](https://twitter.com/alexroan) for his help on this session!
- [Example Contract Creation Transaction](https://rinkeby.etherscan.io/tx/0x924f592458b0e37ee17024f9c826b97697455cd97f6946b802bc42296e77ae43)
- [Example Contract Creation Transaction](https://etherscan.io/tx/0x112133a0a74af775234c077c397c8b75850ceb61840b33b23ae06b753da40490)
What REALLY is the ABI?
- [EVM Opcodes](https://www.evm.codes/)
- [More EVM Opcodes](https://github.com/crytic/evm-opcodes)
- [Solidity Cheatsheet](https://docs.soliditylang.org/en/v0.8.13/cheatsheet.html?highlight=encodewithsignature)
- [Solidity Cheatsheet](https://docs.soliditylang.org/en/latest/cheatsheet.html?highlight=encodewithsignature)
- [abi.encode vs abi.encodePacked](https://ethereum.stackexchange.com/questions/91826/why-are-there-two-methods-encoding-arguments-abi-encode-and-abi-encodepacked)
### Introduction to Encoding Function Calls Directly
### Introduction to Encoding Function Calls Recap
@@ -1458,6 +1462,15 @@ Extra credit:
*[⌨️ (23:37:03) Lesson 15: NextJS NFT Marketplace (Full Stack / Front End)](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=85023s)*
## Large Update, please read
Moralis has recently updated to a self-hosted server over their own server. For this, you can do one of the following:
- [Learn how to run one yourself](https://www.youtube.com/watch?v=9GtysZs-FrA)
- Follow along to learn the concepts of this more interactive app, without actually coding along
- Skip to the section where we interact with the graph
TL;DR: TheGraph code should work exactly the same as the video, however the Moralis code will not.
💻 Code:
- Backend (Contracts): https://github.com/PatrickAlphaC/hardhat-nft-marketplace-fcc
- Frontend (Moralis Indexer): https://github.com/PatrickAlphaC/nextjs-nft-marketplace-moralis-fcc
@@ -1612,7 +1625,7 @@ Special thanks to [Matt Durkin](https://twitter.com/mdurkin92) for help with thi
- [Eth-Security-ToolBox](https://github.com/trailofbits/eth-security-toolbox)
## Closing Thoughts
- [Best Practices](https://consensys.github.io/smart-contract-best-practices/)
- [Attacks](https://consensys.github.io/smart-contract-best-practices/known_attacks/)
- [Attacks](https://consensys.github.io/smart-contract-best-practices/attacks/)
- [Oracle Attacks](https://hackernoon.com/how-dollar100m-got-stolen-from-defi-in-2021-price-oracle-manipulation-and-flash-loan-attacks-explained-3n6q33r1)
- [Re-entrancy Attacks](https://quantstamp.com/blog/what-is-a-re-entrancy-attack)
- [Damn Vulnerable Defi](https://www.damnvulnerabledefi.xyz/)
@@ -1647,7 +1660,8 @@ Special thanks to [Matt Durkin](https://twitter.com/mdurkin92) for help with thi
### Community
- [Twitter](https://twitter.com/PatrickAlphaC)
- [Hardhat Discord](https://discord.gg/9zk7snTfWe)
- [Hardhat Discord](https://hardhat.org/discord)
- [Ethereum Python Community Discord](https://discord.gg/9zk7snTfWe)
- [Chainlink Discord](https://discord.gg/2YHSAey)
- [Ethereum Discord](https://ethereum.org/en/)
- [Reddit ethdev](https://www.reddit.com/r/ethdev/)

20
chronological-updates.md
View File

@@ -95,6 +95,18 @@ It's _roughly_ similar to the options in our video, but you can just pick the `J
[You can read more about the changes here.](https://twitter.com/HardhatHQ/status/1545124474470760449)
----------
# Lesson 7
## New Hardhat Setup
As the previous section has highlighted, changes in the hardhat version changed the hardhat startup menu. You can choose to go with the new menu but if you feel lost and still want to access the old one used in the video, you can do so by installing `hardhat v2.9.3`
Run `yarn add --dev hardhat@2.9.3`
---------
# Lesson 9
## Keepers new UI
@@ -161,6 +173,14 @@ and not
- Remember if you are using gitpod then you cannot connect your local hardhat node with metamask. To resolve this you can use vs code or testnets instead of local node.
# Large Update, please read
Moralis has recently updated to a self-hosted server over their own server. For this, you can do one of the following:
- Learn how to run one yourself
- Follow along to learn the concepts of this more interactive app, without actually coding along
- Skip to the section where we interact with the graph
TL;DR: TheGraph code should work exactly the same as the video, however the Moralis code will not.
--------