├── .gitignore ├── .DS_Store ├── img ├── blockchain1.png ├── ganache-windows.png └── hh-fcc-background.png ├── .github └── ISSUE_TEMPLATE │ ├── config.yml │ ├── repo_enhancement.yml │ ├── video_mistake.yml │ └── code_mistake.yml ├── how-to-answer-a-question.md ├── chronological-updates.md ├── how-to-ask-a-question.md └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | script.md 2 | -------------------------------------------------------------------------------- /.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/NFTMerchant/32hourcourse/HEAD/.DS_Store -------------------------------------------------------------------------------- /img/blockchain1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/NFTMerchant/32hourcourse/HEAD/img/blockchain1.png -------------------------------------------------------------------------------- /img/ganache-windows.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/NFTMerchant/32hourcourse/HEAD/img/ganache-windows.png -------------------------------------------------------------------------------- /img/hh-fcc-background.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/NFTMerchant/32hourcourse/HEAD/img/hh-fcc-background.png -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/config.yml: -------------------------------------------------------------------------------- 1 | blank_issues_enabled: true 2 | contact_links: 3 | - name: Anything Else 4 | url: https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions 5 | about: For anything else that is a question about the course, looking to show off something cool, connect with other developers, or looking for support, please head over to the discussions tab! 6 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/repo_enhancement.yml: -------------------------------------------------------------------------------- 1 | name: Repo Enhancement 2 | description: If you have a suggestion on how to make this repository better, please let us know! 3 | labels: ["enhancement"] 4 | body: 5 | - type: textarea 6 | attributes: 7 | label: Describe the enhancement 8 | description: The more information the better! Thanks for making this issue! 9 | validations: 10 | required: true 11 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/video_mistake.yml: -------------------------------------------------------------------------------- 1 | name: Video Mistake 2 | description: File an issue when Patrick made a mistake in the video. 3 | labels: ["video-bug"] 4 | body: 5 | - type: markdown 6 | attributes: 7 | value: | 8 | Please ensure that the bug has not already been filed in the issue tracker. 9 | 10 | Thanks for taking the time to report this bug! 11 | - type: dropdown 12 | attributes: 13 | label: Lesson 14 | description: Which lesson is this an issue for? 15 | multiple: false 16 | options: 17 | - Lesson 1 18 | - Lesson 2 19 | - Lesson 3 20 | - Lesson 4 21 | - Lesson 5 22 | - Lesson 6 23 | - Lesson 7 24 | - Lesson 8 25 | - Lesson 9 26 | - Lesson 10 27 | - Lesson 11 28 | - Lesson 12 29 | - Lesson 13 30 | - Lesson 14 31 | - Lesson 15 32 | - Lesson 16 33 | - Lesson 17 34 | - Lesson 18 35 | - Other (please describe) 36 | validations: 37 | required: true 38 | - type: input 39 | attributes: 40 | label: Could you please leave a link to the timestamp in the video where this error occurs? (You can right click a video and "copy video URL at current time") 41 | placeholder: "https://www.youtube.com/watch?v=M576WGiDBdQ&t=21247s" 42 | - type: textarea 43 | attributes: 44 | label: Describe the bug 45 | description: Please include relevant code snippets as well if relevant. Remember to format! 46 | validations: 47 | required: true 48 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/code_mistake.yml: -------------------------------------------------------------------------------- 1 | name: Code Mistake 2 | description: File an issue with one of the code repositories. 3 | labels: ["code-bug"] 4 | body: 5 | - type: markdown 6 | attributes: 7 | value: | 8 | Please ensure that the bug has not already been filed in the issue tracker. 9 | 10 | Thanks for taking the time to report this bug! 11 | - type: dropdown 12 | attributes: 13 | label: Lesson 14 | description: Which lesson is this an issue for? 15 | multiple: false 16 | options: 17 | - Lesson 1 18 | - Lesson 2 19 | - Lesson 3 20 | - Lesson 4 21 | - Lesson 5 22 | - Lesson 6 23 | - Lesson 7 24 | - Lesson 8 25 | - Lesson 9 26 | - Lesson 10 27 | - Lesson 11 28 | - Lesson 12 29 | - Lesson 13 30 | - Lesson 14 31 | - Lesson 15 32 | - Lesson 16 33 | - Lesson 17 34 | - Lesson 18 35 | - Other (please describe) 36 | validations: 37 | required: true 38 | - type: input 39 | attributes: 40 | label: Could you please leave a link to the timestamp in the video where this error occurs? (You can right click a video and "copy video URL at current time") 41 | placeholder: "https://www.youtube.com/watch?v=M576WGiDBdQ&t=21247s" 42 | - type: dropdown 43 | attributes: 44 | label: Operating System 45 | description: What operating system are you on? 46 | options: 47 | - Windows 48 | - macOS (Intel) 49 | - macOS (Apple Silicon) 50 | - Linux 51 | - type: textarea 52 | attributes: 53 | label: Describe the bug 54 | description: Please include relevant code snippets as well if relevant. Remember to format! 55 | validations: 56 | required: true 57 | -------------------------------------------------------------------------------- /how-to-answer-a-question.md: -------------------------------------------------------------------------------- 1 | # How to answer questions 2 | 3 | Thank you for wanting to answer questions! This is how we grow as a community :) 4 | 5 | 1. Make sure the question follows the "how-to-ask-a-good-question" guide 6 | 2. Make sure your answer unblocks the user 7 | 3. Remember, this is living documentation! 8 | 4. Format your answers, like in the `how-to-ask-a-question` guide. 9 | 10 | 11 | # 1. Make sure the question follows the "how-to-ask-a-good-question" guide 12 | 13 | If the question is poorly formatted and you know how to reformat it reformat it and ask them next time to format their code. 14 | 15 | If the question is posted in the wrong place (like a theoretical question posted on stackoverflow) kindly let them know that it's in the wrong place. 16 | 17 | If the question has already been asked and answered, answer with a link to the question that has already been asked and answered and ask if that solves the problem. 18 | 19 | If the problem has a poor title, doesn't make sense to others, etc, feel free to edit the question to what does if you can understand it. If not, you can answer saying "I don't quite understand what you're asking, could you reformat your question following the "how to ask a question" guide? 20 | 21 | If they used screenshots, feel free to ask them to copy-paste the code. 22 | 23 | Or, feel free to ignore it. This is a community run forum and no one is "entitled to" answers! Be nice, be respectful, and have fun. But if you do know how to help someone, a little "could you please refactor your question" can go a long way! 24 | 25 | ### Don't feel obliged to help right away if they are not asking well-formatted questions. Make them ask a well-formatted question first before you answer! 26 | 27 | But don't be a jerk about it. If they just need a little formatting touch up, just touch up their question for them. 28 | 29 | # 2. Make sure your answer unblocks them 30 | 31 | Often times, people will ask questions where the answer might be X, but they are trying to do Y. Try to anticipate what people are trying to do. Answer the question at face value, and then maybe give more information on where to go next. 32 | 33 | Often, giving a summary of your answer at the top with copy pasteable code, and then a "more information" is a best practice. 34 | 35 | # 3. Remember this is living documentation! 36 | 37 | Treat it as such. Go back and update answers if you find them! 38 | 39 | # 4. Format your answers, like in the `how-to-ask-a-question` guide. 40 | 41 | See that guide for more information. -------------------------------------------------------------------------------- /chronological-updates.md: -------------------------------------------------------------------------------- 1 | # Chronological Updates 2 | 3 | This file will contain all updates to sections. 4 | 5 | # Lesson 5 6 | ## Windows, WSL, & Ganache 7 | - Per [this question](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/34#discussioncomment-2846436), if you're using WSL, for the ganache UI you'll have to use a different endpoint. 8 | 9 | You have 4 options to fix this: 10 | 1. Use the WSL endpoint on the ganache UI (this sometimes doesn't work) 11 | 2. Use `ganache` from the command line 12 | 3. Use `ganache-cli` from the command line (not recommended) 13 | 4. Just use `hardhat` from the command line (you'll have to use hardhat at some point anyways!) 14 | 15 | ### Using the WSL Endpoint 16 | On the Ganache UI, you can select a different hostname and connect to whatever IP you see. In the example below, you'd connect to `172.24.224.1` 17 | 18 | ![img](./img/ganache-windows.png) 19 | 20 | You can also try to edit it by: 21 | 22 | 1. Inside Ganache in the top-right corner tap on the gear icon (settings). 23 | 2. Then in the server tab, change the HOSTNAME and select 0.0.0.0 - All Interfaces. 24 | 3. Now replace your RPC Server URL inside the code with this latest URL that will be something like: HTTP://0.0.0.0.7545. Recheck this from Ganache. 25 | 26 | ### Using `ganache` 27 | 28 | ``` 29 | yarn global add ganache 30 | ganache 31 | ``` 32 | 33 | Keep this running in it's own terminal, and use the endpoint it gives you. To kill it, press `CTRL` + `C`. 34 | 35 | [See the discussion here](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/34) 36 | 37 | ### Using `ganache-cli` from the command line. 38 | Or, optionally, you can install `ganache-cli` [as this user did](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/39#discussioncomment-2854165). 39 | 40 | ``` 41 | yarn global add ganache-cli 42 | ganache-cli 43 | ``` 44 | 45 | Keep this running in it's own terminal, and use the endpoint it gives you. To kill it, press `CTRL` + `C`. 46 | 47 | ### Using `hardhat` 48 | 49 | [See the discussion here](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/90#discussioncomment-2871657) 50 | 51 | ``` 52 | yarn add --dev hardhat 53 | yarn hardhat 54 | ``` 55 | 56 | Then select the `Create an empty hardhat.config.js` 57 | 58 | Then run: 59 | 60 | ``` 61 | yarn hardhat node 62 | ``` 63 | 64 | Keep this running in it's own terminal, and use the endpoint it gives you. To kill it, press `CTRL` + `C`. 65 | 66 | 67 | -------- 68 | 69 | # Lesson 6 70 | 71 | ## New Hardhat Setup 72 | 73 | As of `2.10.0` version of hardhat, when you first run `yarn hardhat` you'll get something like this instead: 74 | 75 | ```bash 76 | 888 888 888 888 888 77 | 888 888 888 888 888 78 | 888 888 888 888 888 79 | 8888888888 8888b. 888d888 .d88888 88888b. 8888b. 888888 80 | 888 888 "88b 888P" d88" 888 888 "88b "88b 888 81 | 888 888 .d888888 888 888 888 888 888 .d888888 888 82 | 888 888 888 888 888 Y88b 888 888 888 888 888 Y88b. 83 | 888 888 "Y888888 888 "Y88888 888 888 "Y888888 "Y888 84 | 85 | 👷 Welcome to Hardhat v2.10.0 👷‍ 86 | 87 | ? What do you want to do? … 88 | ❯ Create a JavaScript project 89 | Create a TypeScript project 90 | Create an empty hardhat.config.js 91 | Quit 92 | ``` 93 | 94 | It's _roughly_ similar to the options in our video, but you can just pick the `JavaScript project` whenever we don't pick the `empty hardhat.config.js`. 95 | 96 | [You can read more about the changes here.](https://twitter.com/HardhatHQ/status/1545124474470760449) 97 | 98 | # Lesson 9 99 | 100 | ## Keepers new UI 101 | 102 | Per [this conversation](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/606#discussioncomment-3037792), when you get to the new Keepers UI, select "Custom Logic" 103 | 104 | More information: https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/606#discussioncomment-3037792 105 | 106 | ## Keepers Not Kicking Off Troubleshooting 107 | 108 | If your keepers are not kicking off, run through this checklist to find out why. 109 | 110 | 1. Double check the subscription ID in your contract 111 | 2. Double check the subscription is funded with enough LINK 112 | 3. Is `checkUpkeep` returning true? 113 | 4. Can you call `performUpkeep` yourself? (If you can't the keeper can't!) 114 | 115 | 116 | ------- 117 | # Lesson 14 118 | 119 | ## Math on NFT Chance Array 120 | 121 | The ```getBreedFromModdedRng()``` function in RandomIpfsNft.sol gets the math wrong. 122 | 123 | line 104, 124 | ```solidity 125 | if (moddedRng >= cumulativeSum && moddedRng < cumulativeSum + chanceArray[i]) { 126 | return Breed(i); 127 | } 128 | cumulativeSum = cumulativeSum + chanceArray[i]; 129 | ``` 130 | needs to be changed to 131 | ```solidity 132 | if (moddedRng >= cumulativeSum && moddedRng < chanceArray[i]) { 133 | return Breed(i); 134 | } 135 | cumulativeSum = chanceArray[i]; 136 | ``` 137 | 138 | The chanceArray[] array already has a cumulative probability distribution, no need to keep adding cumulativeSum to it. 139 | 140 | According to the current algorithm: 141 | ``` 142 | moddedRng produced is between 0 and 99 143 | chanceArray=[10,30,100] 144 | ``` 145 | ``` 146 | PUG is produced if moddedRng is between [0,10) = span of 10 147 | SHIBA is produce if moddedRng is between [10,40) = span of 30 148 | BERNARD is produced if moddedRng is between [40,140] = span of 60 (since moddedRng<100) 149 | ``` 150 | So the actual probabilities according to the current algo is 151 | ``` [10%,30%,60%] ``` 152 | and not 153 | ``` [10%,20%,70%]``` 154 | as would be expected from a proper cumulative probability distribution function. 155 | 156 | ------- 157 | 158 | # Lesson 15 159 | 160 | ## Metamask Troubleshooting while using Gitpod 161 | 162 | - 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. 163 | 164 | 165 | -------- 166 | 167 | 168 | -------------------------------------------------------------------------------- /how-to-ask-a-question.md: -------------------------------------------------------------------------------- 1 | # How to ask a question 2 | 3 | > Note: Before reading this, you might want to read my guide on [top 6 tips to solve any software engineering error](https://medium.com/better-programming/top-6-tips-to-solve-any-software-engineering-error-a794a162fcaf). 4 | 5 | Also note, take this pledge: "I solemnly swear that after asking a question I will spend at least 5 minutes trying to answer someone else's question. I will consult the 'How to answer a question' page before I do so. " 6 | 7 | The internet is our documentation, and we want to treat is as such. **Every** *specific* question we have *should* be able to be found by typing it into a web search bar. 8 | 9 | Now, there are no "bad" questions, but there are poorly-formatted questions. A poorly formatted question has a low chance of being answered, poor chance of being discovered, and can "clutter up" forums and discussion boards. So let's make sure we strive for well-formatted questions! 10 | 11 | # Full Examples at the bottom! 12 | 13 | Here are the steps to ask a well-formatted question: 14 | 15 | 1. Search to see if the question has already been asked 16 | 2. Know where to post your question 17 | 3. Make a title that summarizes the problem 18 | 4. Introduce the problem before writing any code 19 | 5. Make sure you format code using backticks (```) and a language tag 20 | 6. Make sure you copy paste your code instead of using screenshots 21 | 7. Make sure your code is a minimal example 22 | 23 | 24 | # 1. Search to see if the question has already been asked 25 | 26 | ## Do not skip this step! 27 | 28 | We should think of the internet as one giant document. If a question has already been asked and you can find it on the first page of your search engine, it's good! Don't ask the question again! 29 | 30 | And if it's not on the first page of your search results, then **yes, you should 100% ask the question on a forum even if you know the answer.** 31 | 32 | We want every tech question ever to be: 33 | 34 | 1. Indexed by search engines 35 | 2. Easy to find 36 | 3. Easy to reproduce 37 | 38 | So that in 6 months when you forget the answer, you can just google it and it'll show up! 39 | 40 | We don't want there to be multiple questions, because that can fragment where people look! We want to add answers, comments, etc all in one place 41 | 42 | # 2. Know where to post your question 43 | 44 | I categorize questions into one of three: 45 | 46 | - Specific code based questions 47 | - Generic theoretical questions 48 | - "In the know", support, or emergency questions 49 | 50 | ## Specific code based questions 51 | 52 | These are what we strive for. These are reproducible questions that help the world. You'll want to put these questions in places like: 53 | 54 | - The "Q&A" discussions section of this course 55 | - stackoverflow 56 | - stack exchange ETH. 57 | 58 | These are questions that typically can have a "right" or "many right answers". Generally, these are not very opinionated questions. 59 | 60 | These are questions like "How to convert bytes32 to uint256". 61 | 62 | ## Generic Theoretical Questions 63 | 64 | These are questions that likely do not have a canonical answer. These are questions like "which blockchain should I deploy to?" or "How could I make a game that involves many random characters?". They belong in places like: 65 | 66 | - The "General" discussions section of this course 67 | - A generic forum like Reddit, Twitter 68 | - Discord (like some of the ones people have started here) 69 | 70 | Ideally, you put these on an indexed forum like reddit and the general discussions section instead of discord so others can do a web search for the problems. 71 | 72 | ## "In the know", support, or emergency questions 73 | 74 | These are very specific use cases and 99% of your questions will not be these kinds. These are questions like "we just got hacked, can you help us?", "Want to join my team", etc. They are questions that likely only apply to your situation and what you are doing. They belong in: 75 | 76 | - Discord DMs 77 | - Email 78 | - etc 79 | 80 | And should be used *very* sparingly. 81 | 82 | # 3. Make a title that summarizes the problem 83 | 84 | It should be minimal, searchable, indexable (by search engines). 85 | 86 | ## Examples: 87 | Bad: 88 | - I'm stuck, please help 89 | 90 | Good: 91 | - Could Not Detect Network using WSL & Ganache 92 | 93 | Bad: 94 | - hardhat error 95 | 96 | Good: 97 | - TypeError: Cannot read property 'length' of undefined - when deploying contract 98 | 99 | # 4. Introduce the problem before writing any code 100 | 101 | In the body of the question, say what you're trying to do, what you've done, and give a summary of your problem. 102 | 103 | With this course in the discussions tab, you may also give a timestamp of where you're getting the issue (in fact, please give a timestamp with a link to the location in the video). 104 | 105 | # 5. Make sure you format code using backticks (```) and a language tag 106 | 107 | You'll want to format your question so it's as easy as possible to read! Especially with your code snippets. 108 | 109 | Your code should show up like this: 110 | 111 | ```javascript 112 | // my code here 113 | ``` 114 | 115 | In your question, you'll type it like this: 116 | 117 | ```` 118 | ```javascript 119 | // my code here 120 | ``` 121 | ```` 122 | 123 | If it doesn't get formatted, you can edit your question (usually, you can click the three little dots at the top right of your question) to make it formatted nicely. 124 | 125 | # 6. Make sure you copy paste your code instead of using screenshots 126 | 127 | We want web crawlers to index every word you write, so even copy paste errors (and format them with 3 backticks!) 128 | 129 | 130 | # 7. Make sure your code is a minimal example 131 | 132 | There are two types of code questions: 133 | 134 | - Debug me 135 | - Specific questions 136 | 137 | Don't be a "Debug Me" 138 | 139 | ## Example of a poorly formatted question (a debug me question): 140 | 141 | Hi I'm confused my code isn't working here is all my code 142 | 143 | ```javascript 144 | // pretend I pasted like 300 lines of code here 145 | ``` 146 | 147 | ## Example of a much better question 148 | 149 | I'm getting `error x` on line 42 of my code: 150 | 151 | ```javascript 152 | const some_var = "dog" 153 | // this is the line that is erroring 154 | ``` 155 | 156 | [More information on reproducible code.](https://stackoverflow.com/help/minimal-reproducible-example) 157 | 158 | 159 | 160 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 | 3 | 10 | 11 | 12 | # Web3, Full Stack Solidity, Smart Contract & Blockchain - Beginner to Expert ULTIMATE Course | Javascript Edition 13 | 14 |
15 |

16 | 17 | Solidity, Blockchain, and Smart Contract Course – Beginner to Expert Javascript Tutorial 18 | 19 |

20 |
21 | 22 | Welcome to the repository for the Ultimate Web3, Full Stack Solidity, and Smart Contract - Beginner to Expert Full Course | Javascript Edition FreeCodeCamp Course! 23 | 24 | # Link to video: https://www.youtube.com/watch?v=gyMwXuJrbJQ 25 | 26 | All code references have both a javascript and a typescript edition. 27 | 28 | Recommended Testnet: Rinkeby 29 | 30 | # [Testnet Faucets](https://faucets.chain.link) 31 | Main Faucet: https://faucets.chain.link 32 | 33 | Backup Faucet: https://rinkebyfaucet.com/ 34 | 35 | > ⚠️ 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. 36 | 37 | # Resources For This Course 38 | 39 | ### Questions 40 | 41 | - [Github Discussions](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions) 42 | - Ask questions and chat about the course here! 43 | - [Stack Exchange Ethereum](https://ethereum.stackexchange.com/) 44 | - Great place for asking technical questions about Ethereum 45 | - [StackOverflow](https://stackoverflow.com/) 46 | - Great place for asking technical questions overall 47 | 48 | 49 | # Table of Contents 50 | 51 |
52 | Resources 53 |
    54 |
  1. Testnet Faucets
    2. 55 |
  2. Resources For This Course 58 |
    3. 59 |
  3. Table of Contents
    4. 60 |
61 |
62 |
63 | Lesson 0: The Edge of the Rabbit Hole 64 |
    65 |
  1. 66 | Welcome to the course! 67 |
    2. 68 |
  2. 69 | Best Practices 70 |
    3. 71 |
72 |
73 |
74 | Lesson 1: Blockchain Basics 75 |
    76 |
  1. 77 | What is a Blockchain? What does a blockchain do? 78 |
    2. 79 |
  2. The Purpose Of Smart Contracts
    3. 80 |
  3. Other Blockchain Benefits
    4. 81 |
  4. What have Smart Contracts done so far?
    5. 82 |
  5. Making Your First Transaction
    6. 83 |
  6. Gas I: Introduction to Gas
    7. 84 |
  7. How Do Blockchains Work?
    8. 85 |
  8. Signing Transactions
    9. 86 |
  9. Gas II
    10. 87 |
  10. High-Level Blockchain Fundamentals
    11. 88 |
89 |
90 |
91 | Lesson 2: Welcome to Remix! Simple Storage 92 |
    93 |
  1. Introduction
    2. 94 |
  2. Setting Up Your First Contract
    3. 95 |
  3. Basic Solidity: Types
    4. 96 |
  4. Basic Solidity: Functions
    5. 97 |
  5. Basic Solidity: Arrays & Structs
    6. 98 |
  6. Basic Solidity: Compiler Errors and Warnings
    7. 99 |
  7. Memory, Storage, Calldata (Intro)
    8. 100 |
  8. Mappings
    9. 101 |
  9. Deploying your First Contract
    10. 102 |
  10. The EVM & A Recap of Lesson 2
    11. 103 |
104 |
105 |
106 | Lesson 3: Remix Storage Factory 107 |
    108 |
  1. Introduction
    2. 109 |
  2. Basic Solidity: Importing Contracts into other Contracts
    3. 110 |
  3. Basic Solidity: Interacting with other Contracts
    4. 111 |
  4. Basic Solidity: Inheritance & Overrides
    5. 112 |
  5. Lesson 3 Recap
    6. 113 |
114 |
115 |
116 | Lesson 4: Remix Fund Me 117 |
    118 |
  1. Introduction
    2. 119 |
  2. Sending ETH Through a Function & Reverts
    3. 120 |
  3. Chainlink & Oracles
    4. 121 |
  4. Review of Sending ETH and working with Chainlink
    5. 122 |
  5. Interfaces & Price Feeds
    6. 123 |
  6. Importing from GitHub & NPM
    7. 124 |
  7. Floating Point Math in Solidity
    8. 125 |
  8. Basic Solidity: Arrays & Structs II
    9. 126 |
  9. Review of Interfacs, Importing from GitHub, & Math in Solidity
    10. 127 |
  10. Libraries
    11. 128 |
  11. SafeMath, Overflow Checking, and the "unchecked" keywork
    12. 129 |
  12. Basic Solidity: For Loop
    13. 130 |
  13. Basic Solidity: Resetting an Array
    14. 131 |
  14. Sending ETH from a Contract
    15. 132 |
  15. Basic Solidity: Constructor
    16. 133 |
  16. Basic Solidity: Modifiers
    17. 134 |
  17. Testnet Demo
    18. 135 |
  18. Advanced Solidity
141 |
142 |
143 | Lesson 5: Ethers.js Simple Storage 144 |
    145 |
  1. Effective Debugging Strategies & Getting Help 148 |
    2. 149 |
  2. Installation & Setup 154 |
    3. 155 |
  3. Local Development Introduction 158 |
    4. 159 |
  4. Tiny Javascript Refresher
    5. 160 |
  5. Asynchronous Programming in Javascript
    6. 161 |
  6. Compiling our Solidity
    7. 162 |
  7. Ganache & Networks
    8. 163 |
  8. Introduction to Ethers.js 166 |
    9. 167 |
  9. Adding Transaction Overrides
    10. 168 |
  10. Transaction Receipts
    11. 169 |
  11. Sending a "raw" Transaction in Ethersjs
    12. 170 |
  12. Interacting with Contracts in Ethersjs
    13. 171 |
  13. Environment Variables
    14. 172 |
  14. Better Private Key Management
    15. 173 |
  15. Optional Prettier Formatting
    16. 174 |
  16. Deploying to a Testnet or a Mainnet
    17. 175 |
  17. Verifying on Block Explorers from the UI
    18. 176 |
  18. Alchemy Dashboard & The Mempool
    19. 177 |
  19. Lesson 5 Recap 180 |
    20. 181 |
182 |
183 |
184 | Lesson 6: Hardhat Simple Storage 185 |
    186 |
  1. Introduction
    2. 187 |
  2. Hardhat Setup 190 |
    3. 191 |
  3. Hardhat Setup Continued
    4. 192 |
  4. Deploying SimpleStorage from Hardhat
    5. 193 |
  5. Networks in Hardhat
    6. 194 |
  6. Programatic Verification
    7. 195 |
  7. Interacting with Contracts in Hardhat
    8. 196 |
  8. Artifacts Troubleshooting
    9. 197 |
  9. Custom Hardhat Tasks
    10. 198 |
  10. Hardhat Localhost Node
    11. 199 |
  11. The Hardhat Console
    12. 200 |
  12. Hardhat Tests
    13. 201 |
  13. Hardhat Gas Reporter
    14. 202 |
  14. Solidity Coverage
    15. 203 |
  15. Hardhat Waffle
    16. 204 |
  16. Lesson 6 Recap 207 |
    17. 208 |
209 |
210 |
211 | Lesson 7: Hardhat Fund Me 212 |
    213 |
  1. Introduction
    2. 214 |
  2. Hardhat Setup - Fund Me
    3. 215 |
  3. Linting
    4. 216 |
  4. Hardhat Setup - Fund Me - Continued
    5. 217 |
  5. Importing from NPM
    6. 218 |
  6. Hardhat Deploy
    7. 219 |
  7. Mocking
    8. 220 |
  8. Utils Folder
    9. 221 |
  9. Testnet Demo - Hardhat Fund Me
    10. 222 |
  10. Solidity Style Guide
    11. 223 |
  11. Testing Fund Me
    12. 224 |
  12. Breakpoints & Debugging
    13. 225 |
  13. Gas III:
    14. 226 |
  14. console.log & Debugging
    15. 227 |
  15. Testing Fund Me II
    16. 228 |
  16. Storage in Solidity
    17. 229 |
  17. Gas Optimizations using Storage Knowledge
    18. 230 |
  18. Solidity Chainlink Style Guide
    19. 231 |
  19. Storage Review
    20. 232 |
  20. Staging Tests
    21. 233 |
  21. Running Scripts on a Local Node
    22. 234 |
  22. Adding Scripts to your package.json
    23. 235 |
  23. Pushing to GitHub
    24. 236 |
  24. 🐸🐦 Tweet Me (add your repo in)!
    25. 237 |
238 |
239 |
240 | Lesson 8: HTML / Javascript Fund Me (Full Stack / Front End) 241 |
    242 |
  1. Introduction
    2. 243 |
  2. How Websites work with Web3 Wallets
    3. 244 |
  3. HTML Setup
    4. 245 |
  4. Connecting HTML to Metamask
    5. 246 |
  5. Javascript in it's own file
    6. 247 |
  6. ES6 vs Nodejs
    7. 248 |
  7. Sending a transaction from a Website
    8. 249 |
  8. Resetting an Account in Metamask
    9. 250 |
  9. Listening for Events and Completed Transactions
    10. 251 |
  10. Input Forms
    11. 252 |
  11. Reading from the Blockchain
    12. 253 |
  12. Withdraw Function
    13. 254 |
  13. Lesson 8 Recap 257 |
    14. 258 |
259 |
260 |
261 | Lesson 9: Hardhat Smart Contract Lottery 262 |
    263 |
  1. Introduction
    2. 264 |
  2. Hardhat Setup - Smart Contract Lottery
    3. 265 |
  3. Raffle.sol Setup
    4. 266 |
  4. Introduction to Events
    5. 267 |
  5. Events in Raffle.sol
    6. 268 |
  6. Introduction to Chainlink VRF 271 |
    7. 272 |
  7. Implementing Chainlink VRF - Introduction 275 |
    8. 276 |
  8. Implementing Chainlink VRF - The Request
    9. 277 |
  9. Implementing Chainlink VRF - The FulFill 280 |
    10. 281 |
  10. Introduction to Chainlink Keepers
    11. 282 |
  11. Implementing Chainlink Keepers - checkUpkeep 285 |
    12. 286 |
  12. Implementing Chainlink Keepers - checkUpkeep continued
    13. 287 |
  13. Implementing Chainlink Keepers - performUpkeep
    14. 288 |
  14. Code Cleanup
    15. 289 |
  15. Deploying Raffle.sol 293 |
    16. 294 |
  16. Raffle.sol Unit Tests 298 |
    17. 299 |
  17. Hardhat Methods & Time Travel 302 |
    18. 303 |
  18. Callstatic 308 |
    19. 309 |
  19. Raffle.sol Staging Tests
    20. 310 |
  20. Testing on a Testnet 313 |
    21. 314 |
  21. Conclusion
    22. 315 |
  22. Typescript - Smart Contract Lottery
    23. 316 |
317 |
318 |
319 | Lesson 10: NextJS Smart Contract Lottery (Full Stack / Front End) 320 |
    321 |
  1. Introduction 324 |
    2. 325 |
  2. NextJS Setup
    3. 326 |
  3. Manual Header I 329 |
    4. 330 |
  4. Manual Header II
    5. 331 |
  5. useEffect Hook
    6. 332 |
  6. Local Storage
    7. 333 |
  7. isWeb3EnabledLoading
    8. 334 |
  8. web3uikit
    9. 335 |
  9. Introduction to Calling Functions in Nextjs 339 |
    10. 340 |
  10. useState
    11. 341 |
  11. Calling Functions in NextJS
    12. 342 |
  12. useNotification
    13. 343 |
  13. Reading & Displaying Contract Data
    14. 344 |
  14. A Note about onSuccess
    15. 345 |
  15. A Challenge to You
    16. 346 |
  16. Tailwind & Styling
    17. 347 |
  17. Introduction to Hosting your Site
    18. 348 |
  18. IPFS
    19. 349 |
  19. Hosting on IPFS
    20. 350 |
  20. Hosting on IPFS & Filecoin using Fleek
    21. 351 |
  21. Filecoin Overview
    22. 352 |
  22. Lesson 10 Recap
    23. 353 |
354 |
355 |
356 | Lesson 11: Hardhat Starter Kit 357 |
    358 |
359 |
360 | Lesson 12: Hardhat ERC20s 361 |
    362 |
  1. What is an ERC? What is an EIP?
    2. 363 |
  2. What is an ERC20?
    3. 364 |
  3. Manually Creating an ERC20 Token
    4. 365 |
  4. Creating an ERC20 Token with Openzeppelin
    5. 366 |
  5. Lesson 12 Recap
    6. 367 | 368 |
369 |
370 |
371 | Lesson 13: Hardhat DeFi & Aave 372 |
    373 |
  1. What is DeFi?
    2. 374 |
  2. What is Aave?
    3. 375 |
  3. Programatic Borrowing & Lending
    4. 376 |
  4. WETH - Wrapped ETH
    5. 377 |
  5. Forking Mainnet
    6. 378 |
  6. Depositing into Aave
    7. 379 |
  7. Borrowing from Aave
    8. 380 |
  8. Repaying with Aave
    9. 381 |
  9. Visualizing the Transactions
    10. 382 |
  10. Lesson 13 Recap
    11. 383 |
  11. Happy Bow-Tie Friday with Austin Griffith 386 |
    12. 387 | 388 |
389 |
390 |
391 | Lesson 14: Hardhat NFTs (EVERYTHING you need to know about NFTs) 392 |
    393 |
  1. What is an NFT?
    2. 394 |
  2. Code Overview
    3. 395 |
  3. Hardhat Setup
    4. 396 |
  4. Basic NFT 399 |
    5. 400 |
  5. Random IPFS NFT 411 |
    6. 412 |
  6. Dynamic SVG On-Chain NFT 417 |
    7. 418 |
  7. Advanced: EVM Opcodes, Encoding, and Calling 427 |
    8. 428 |
  8. Deploying the NFTs to a Testnet
    9. 429 |
  9. Lesson 14 Recap
    10. 430 | 431 |
432 |
433 |
434 | Lesson 15: NextJS NFT Marketplace (If you finish this lesson, you are a full-stack MONSTER!) 435 |
    436 |
  1. Introduction
    2. 437 |
  2. Part I: NFT Marketplace Contracts 441 |
    3. 442 |
  3. Reentrancy 448 |
    4. 449 |
  4. Part II: Moralis Front End 470 |
    5. 471 |
  5. Part III: TheGraph Front End 479 |
    6. 480 | 481 |
482 |
483 |
484 | Lesson 16: Hardhat Upgrades 485 |
    486 |
  1. Upgradeable Smart Contracts Overview
    2. 487 |
  2. Types of Upgrades
    3. 488 |
  3. Delegatecall
    4. 489 |
  4. Small Proxy Example
    5. 490 |
  5. Transparent Upgradeable Smart Contract
    6. 491 | 492 |
493 |
494 |
495 | Lesson 17: Hardhat DAOs 496 |
    497 |
  1. Introduction
    2. 498 |
  2. What is a DAO?
    3. 499 |
  3. How to build a DAO
    4. 500 |
501 |
502 |
503 | Lesson 18: Security & Auditing 504 |
    505 |
  1. Introduction
    2. 506 |
  2. Slither
    3. 507 |
  3. Fuzzing and Eth Security Toolbox
    4. 508 |
  4. Closing Thoughts
    5. 509 |
510 |
511 |
512 | More Resources 513 | 524 | 525 |
526 | 527 | # Lesson 0: The Edge of the Rabbit Hole 528 | ## Welcome to the course! 529 | *[⌨️ (00:00:00) Lesson 0: Welcome To Blockchain](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=0s)* 530 | ## Best Practices 531 | - **Follow the repository:** While going through the course be 100% certain to follow along with the github repository. If you run into in an issue check the chronological-updates in the repo. 532 | - **Be Active in the community:** Ask questions and engage with other developers going through the course in the discussions tab, be sure to go and say hello or gm! This space is different from the other industries, you don't have to be secretive; communicate, network and learn with others :) 533 | - **Learn at your own pace:** It doesn't matter if it takes you a day, a week, a month or even a year. Progress >>> Perfection 534 | - **Take Breaks:** You will exhaust your mind and recall less if you go all out and watch the entire course in one sitting. 535 | **Suggested Strategy** every 25 minutes take a 5 min break, and every 2 hours take a longer 30 min break 536 | - **Refer to Documentation:** Things are constantly being updated, so whenever Patrick opens up some documentation, open it your end and maybe even have the code sample next to you. 537 | 538 | # Lesson 1: Blockchain Basics 539 | *[⌨️ (00:09:05) Lesson 1: Blockchain Basics](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=545s)* 540 | ## What is a Blockchain? What does a blockchain do? 541 | - [Bitcoin Whitepaper](https://bitcoin.org/bitcoin.pdf) 542 | - [Satoshi Nakamoto](https://en.wikipedia.org/wiki/Satoshi_Nakamoto) 543 | - [Ethereum Whitepaper](https://ethereum.org/en/whitepaper/) 544 | - [Vitalik Buterin](https://en.wikipedia.org/wiki/Vitalik_Buterin) 545 | - [What is a Smart Contract?](https://chain.link/education/smart-contracts) 546 | - [Nick Szabo](https://en.wikipedia.org/wiki/Nick_Szabo) 547 | - [Hybrid Smart Contracts](https://blog.chain.link/hybrid-smart-contracts-explained/) 548 | - [Blockchain Oracles](https://betterprogramming.pub/what-is-a-blockchain-oracle-f5ccab8dbd72?source=friends_link&sk=d921a38466df8a9176ed8dd767d8c77d) 549 | - [Terminology](https://connect.comptia.org/content/articles/blockchain-terminology) 550 | - [Web3](https://en.wikipedia.org/wiki/Web3) 551 | - [What is a blockchain](https://www.investopedia.com/terms/b/blockchain.asp) 552 | 553 | ## The Purpose Of Smart Contracts 554 | - 🎥 [Original Video](https://www.youtube.com/watch?v=_JeRq7Gwj5Y&feature=youtu.be) 555 | - 🦬 [My ETH Denver Talk](https://www.youtube.com/watch?v=06hXCX_jj2E) 556 | - 🍔 [McDonalds Scandal](https://www.chicagotribune.com/sns-mcdonalds-story.html) 557 | - ⛓ [More on the evolution of agreements](https://www.youtube.com/watch?v=ufVyX7JDCgg) 558 | - ✍️ [What is a Smart Contract?](https://www.youtube.com/watch?v=ZE2HxTmxfrI) 559 | - 🧱 [How does a blockchain work?](https://www.youtube.com/watch?v=SSo_EIwHSd4) 560 | - 🔮 [Chainlink & Oracles](https://www.youtube.com/watch?v=tIUHQ7sDoaU) 561 | 562 | ## Other Blockchain Benefits 563 | - Decentralized 564 | - Transparency & Flexibility 565 | - Speed & Efficiency 566 | - Security & Immutability 567 | - Counterparty Risk Removal 568 | - Trust Minimized Agreements 569 | 570 | ## What have Smart Contracts done so far? 571 | - [DeFi](https://chain.link/education/defi) 572 | - [Defi Llama](https://defillama.com/) 573 | - [Why DeFi is Important](https://medium.com/the-capital/why-defi-1519cc4d4bd3) 574 | - [DAOs](https://betterprogramming.pub/what-is-a-dao-what-is-the-architecture-of-a-dao-how-to-build-a-dao-high-level-d096a97162cc) 575 | - [NFTs](https://www.youtube.com/watch?v=9yuHz6g_P50) 576 | 577 | ## Making Your First Transaction 578 | - [Metamask Download Link](https://metamask.io/) 579 | - [What is a Private Key?](https://www.coinbase.com/learn/crypto-basics/what-is-a-private-key) 580 | - [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) 581 | - [Etherscan](https://etherscan.io/) 582 | - [Rinkeby Etherscan](https://rinkeby.etherscan.io/) 583 | - [Kovan Etherscan](https://kovan.etherscan.io/) 584 | - Rinkeby Faucet (Check the [link token contracts page](https://docs.chain.link/docs/link-token-contracts/#rinkeby)) 585 | - 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. 586 | - OR, use the [Kovan ETH Faucet](https://faucets.chain.link/), just be sure to swap your metamask to kovan! 587 | 588 | ## Gas I: Introduction to Gas 589 | - [Gas and Gas Fees](https://ethereum.org/en/developers/docs/gas/) 590 | - [Wei, Gwei, and Ether Converter](https://eth-converter.com/) 591 | - [ETH Gas Station](https://ethgasstation.info/) 592 | 593 | ## How Do Blockchains Work? 594 | - [What is a hash?](https://techjury.net/blog/what-is-cryptographic-hash/) 595 | - [Blockchain Demo](https://andersbrownworth.com/blockchain/) 596 | - [Summary](https://ethereum.org/en/developers/docs/intro-to-ethereum/) 597 | 598 | ## Signing Transactions 599 | - [Public / Private Keys](https://andersbrownworth.com/blockchain/public-private-keys/keys) 600 | - [Layer 2 and Rollups](https://ethereum.org/en/developers/docs/scaling/layer-2-rollups/) 601 | - [Decentralized Blockchain Oracles](https://blog.chain.link/what-is-the-blockchain-oracle-problem/) 602 | 603 | ## Gas II 604 | - [Block Rewards](https://www.investopedia.com/terms/b/block-reward.asp) 605 | - Advanced Gas 606 | - [EIP 1559](https://www.youtube.com/watch?v=MGemhK9t44Q) 607 | - GWEI, WEI, and ETH 608 | - [ETH Converter](https://eth-converter.com/) 609 | ## Gas II Summary 610 | - [Run Your Own Ethereum Node](https://geth.ethereum.org/docs/getting-started) 611 | 612 | ## High-Level Blockchain Fundamentals 613 | - [Consensus](https://wiki.polkadot.network/docs/learn-consensus) 614 | - [Proof of Stake](https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/) 615 | - [Proof of Work](https://ethereum.org/en/developers/docs/consensus-mechanisms/pow/) 616 | - [Nakamoto Consensus](https://blockonomi.com/nakamoto-consensus/) 617 | - [Ethereum 2 (the merge)](https://ethereum.org/en/eth2/) 618 | 619 | 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 Completed Blockchain Basics! 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 620 | 621 | # Lesson 2: [Welcome to Remix! Simple Storage](https://github.com/PatrickAlphaC/simple-storage-fcc) 622 | 623 | *[⌨️ (02:01:16) Lesson 2: Welcome to Remix! Simple Storage](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=7276s)* 624 | 625 | 💻 Code: https://github.com/PatrickAlphaC/simple-storage-fcc 626 | 627 | ## Introduction 628 | - [Remix](https://remix.ethereum.org/) 629 | - [Solidity Documentation](https://docs.soliditylang.org/en/v0.8.6/index.html) 630 | 631 | ## Setting Up Your First Contract 632 | - Versioning 633 | - Take notes in your code! 634 | - [What is a software license](https://snyk.io/learn/what-is-a-software-license/) 635 | - SPDX License 636 | - Compiling 637 | - Contract Declaration 638 | 639 | ## Basic Solidity: Types 640 | - [Types & Declaring Variables](https://docs.soliditylang.org/en/v0.8.13/) 641 | - `uint256`, `int256`, `bool`, `string`, `address`, `bytes32` 642 | - [Solidity Types](https://docs.soliditylang.org/en/latest/types.html) 643 | - [Bits and Bytes](https://www.youtube.com/watch?v=Dnd28lQHquU) 644 | - Default Initializations 645 | - Comments 646 | 647 | ## Basic Solidity: Functions 648 | - Functions 649 | - Deploying a Contract 650 | - Smart Contracts have addresses just like our wallets 651 | - Calling a public state-changing Function 652 | - [Visibility](https://docs.soliditylang.org/en/v0.7.3/contracts.html#visibility-and-getters) 653 | - Gas III | An example 654 | - Scope 655 | - View & Pure Functions 656 | 657 | ## Basic Solidity: Arrays & Structs 658 | - Structs 659 | - Intro to Storage 660 | - Arrays 661 | - Dynamic & Fixed Sized 662 | - `push` array function 663 | 664 | 665 | ## Basic Solidity: Compiler Errors and Warnings 666 | - Yellow: Warnings are Ok 667 | - Red: Errors are not Ok 668 | 669 | ## Memory, Storage, Calldata (Intro) 670 | - 6 Places you can store and access data 671 | - calldata 672 | - memory 673 | - storage 674 | - code 675 | - logs 676 | - stack 677 | 678 | ## Mappings 679 | - [Mappings](https://solidity-by-example.org/mapping) 680 | 681 | ## Deploying your First Contract 682 | - A testnet or mainnet 683 | - Connecting Metamask 684 | - [Find a faucet here](https://docs.chain.link/docs/link-token-contracts/#rinkeby) 685 | - See the faucets at the top of this readme! 686 | - Interacting with Deployed Contracts 687 | 688 | ## The EVM & A Recap of Lesson 2 689 | - The EVM 690 | 691 | # Lesson 3: Remix Storage Factory 692 | 693 | *[⌨️ (03:05:34) Lesson 3: Remix Storage Factory](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=11134s)* 694 | 695 | 💻 Code: https://github.com/PatrickAlphaC/storage-factory-fcc 696 | 697 | ## Introduction 698 | - [Factory Pattern](https://betterprogramming.pub/learn-solidity-the-factory-pattern-75d11c3e7d29) 699 | 700 | ## Basic Solidity: Importing Contracts into other Contracts 701 | - [Composibility](https://chain.link/techtalks/defi-composability) 702 | - [Solidity new keyword](https://docs.soliditylang.org/en/v0.8.14/control-structures.html?highlight=new#creating-contracts-via-new) 703 | - [Importing Code in solidity](https://solidity-by-example.org/import) 704 | 705 | ## Basic Solidity: Interacting with other Contracts 706 | - To interact, you always need: ABI + Address 707 | - [ABI](https://docs.soliditylang.org/en/v0.8.14/abi-spec.html?highlight=abi) 708 | 709 | ## Basic Solidity: Inheritance & Overrides 710 | - [Inheritance](https://solidity-by-example.org/inheritance) 711 | - [Override & Virtual Keyword](https://docs.soliditylang.org/en/v0.8.14/contracts.html?highlight=override#function-overriding) 712 | 713 | ## Lesson 3 Recap 714 | 715 | # Lesson 4: Remix Fund Me 716 | 717 | *[⌨️ (03:31:55) Lesson 4: Remix Fund Me](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=12715s)* 718 | 719 | 💻 Code: https://github.com/PatrickAlphaC/fund-me-fcc 720 | 721 | ## Introduction 722 | 723 | ## Sending ETH Through a Function & Reverts 724 | - [Fields in a Transaction](https://ethereum.org/en/developers/docs/transactions/) 725 | - [More on v,r,s](https://ethereum.stackexchange.com/questions/15766/what-does-v-r-s-in-eth-gettransactionbyhash-mean) 726 | - [payable](https://solidity-by-example.org/payable) 727 | - [msg.value & Other global keywords](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=cheatsheet#global-variables) 728 | - [require](https://codedamn.com/news/solidity/what-is-require-in-solidity) 729 | - [revert](https://medium.com/blockchannel/the-use-of-revert-assert-and-require-in-solidity-and-the-new-revert-opcode-in-the-evm-1a3a7990e06e) 730 | 731 | ## Chainlink & Oracles 732 | - [What is a blockchain oracle?](https://chain.link/education/blockchain-oracles) 733 | - [What is the oracle problem?](https://blog.chain.link/what-is-the-blockchain-oracle-problem/) 734 | - [Chainlink](https://chain.link/) 735 | - [Chainlink Price Feeds (Data Feeds)](https://docs.chain.link/docs/get-the-latest-price/) 736 | - [data.chain.link](https://data.chain.link/) 737 | - [Chainlink VRF](https://docs.chain.link/docs/chainlink-vrf/) 738 | - [Chainlink Keepers](https://docs.chain.link/docs/chainlink-keepers/introduction/) 739 | - [Chainlink API Calls](https://docs.chain.link/docs/request-and-receive-data/) 740 | - [Importing Tokens into your Metamask](https://consensys.net/blog/metamask/how-to-add-your-custom-tokens-in-metamask/) 741 | - [Request and Receive Chainlink Model](https://docs.chain.link/docs/architecture-request-model/) 742 | 743 | ## Review of Sending ETH and working with Chainlink 744 | 745 | ## Interfaces & Price Feeds 746 | - [Chainlink Price Feeds (Data Feeds)](https://docs.chain.link/docs/get-the-latest-price/) 747 | - [Chainlink GitHub](https://github.com/smartcontractkit/chainlink) 748 | - [Interface](https://solidity-by-example.org/interface) 749 | 750 | ## Importing from GitHub & NPM 751 | - [Chainlink NPM Package](https://www.npmjs.com/package/@chainlink/contracts) 752 | 753 | ## Floating Point Math in Solidtiy 754 | - [tuple](https://docs.soliditylang.org/en/v0.8.14/abi-spec.html?highlight=tuple#handling-tuple-types) 755 | - [Floating Point Numbers in Solidity](https://stackoverflow.com/questions/58277234/does-solidity-supports-floating-point-number) 756 | - [Type Casting](https://ethereum.stackexchange.com/questions/6891/type-casting-in-solidity) 757 | - Gas Estimation Failed 758 | - Someone should make an article explaining this error 759 | 760 | ## Basic Solidity: Arrays & Structs II 761 | - [msg.sender](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=msg.sender) 762 | 763 | ## Review of Interfaces, Importing from GitHub, & Math in Solidity 764 | 765 | ## Libraries 766 | - [Library](https://docs.soliditylang.org/en/v0.8.14/contracts.html?highlight=library#libraries) 767 | - [Solidity-by-example Library](https://solidity-by-example.org/library) 768 | 769 | ## SafeMath, Overflow Checking, and the "unchecked" keyword 770 | - [Openzeppelin Safemath](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeMath.sol) 771 | - [unchecked vs. checked](https://docs.soliditylang.org/en/v0.8.0/control-structures.html#checked-or-unchecked-arithmetic) 772 | 773 | ## Basic Solidity: For Loop 774 | - [For Loop](https://solidity-by-example.org/loop) 775 | - `/* */` is another way to make comments 776 | 777 | ## Basic Solidity: Resetting an Array 778 | 779 | ## Sending ETH from a Contract 780 | - [Transfer, Send, Call](https://solidity-by-example.org/sending-ether/) 781 | - [this keyword](https://ethereum.stackexchange.com/questions/1781/what-is-the-this-keyword-in-solidity) 782 | 783 | ## Basic Solidity: Constructor 784 | - [Constructor](https://solidity-by-example.org/constructor) 785 | 786 | ## Basic Solidity: Modifiers 787 | - [Double equals](https://www.geeksforgeeks.org/solidity-operators/) 788 | - [Modifier](https://solidity-by-example.org/function-modifier) 789 | 790 | ## Testnet Demo 791 | - [Disconnecting Metamask](https://help.1inch.io/en/articles/4666771-metamask-how-to-connect-disconnect-and-switch-accounts-with-metamask-on-1inch-network) 792 | 793 | ## Advanced Solidity 794 | ### Immutable & Constant 795 | - [Immutable](https://solidity-by-example.org/immutable) 796 | - [Constant](https://solidity-by-example.org/constants) 797 | - [Current ETH Gas Prices](https://etherscan.io/gastracker) 798 | - Don't stress about gas optimizations! (yet) 799 | - Naming Conventions 800 | - [Someone make this!](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/issues/13) 801 | 802 | ### Custom Errors 803 | - [Custom Errors Introduction](https://blog.soliditylang.org/2021/04/21/custom-errors/) 804 | 805 | ### Receive & Fallback Functions 806 | - [Solidity Docs Special Functions](https://docs.soliditylang.org/en/v0.8.14/contracts.html?highlight=fallback#special-functions) 807 | - [Fallback](https://solidity-by-example.org/fallback) 808 | - [Receive](https://docs.soliditylang.org/en/v0.8.14/contracts.html?highlight=fallback#receive-ether-function) 809 | 810 | ## Lesson 4 Recap 811 | 812 | 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 Completed Solidity Basics! 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 813 | 814 | # Lesson 5: Ethers.js Simple Storage 815 | 816 | *[⌨️ (05:30:42) Lesson 5: Ethers.js Simple Storage](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=19842s)* 817 | 818 | 💻 Code: https://github.com/PatrickAlphaC/ethers-simple-storage-fcc 819 | 820 | 🧪 [Alchemy: https://alchemy.com/?a=673c802981](https://alchemy.com/?a=673c802981) 821 | 822 | ## Effective Debugging Strategies & Getting Help 823 | *[⌨️ (5:30:46) Effective Debugging Stategies & Getting Help](https://youtu.be/gyMwXuJrbJQ?t=19846)* 824 | 1. Tinker and isolate problem 825 | 1. For this course, take at LEAST 15 minutes to figure out a bug. 826 | 2. Google / Web Search the Exact problem 827 | 1. Go to this GitHub Repo / Discussions 828 | 3. Ask a question on a Forum like Stack Exchange Ethereum or Stack Overflow 829 | 1. Format your questions!! 830 | 2. Use [Markdown](https://www.markdowntutorial.com/) 831 | 832 | ### How to Debug Anything Video 833 | - [Patrick's Original Video](https://www.youtube.com/watch?v=XT8STflvwNo) 834 | 835 | ## Installation & Setup 836 | - [Visual Studio Code](https://code.visualstudio.com/) 837 | - [Crash Course](https://www.youtube.com/watch?v=WPqXP_kLzpo) 838 | - [NodeJS](https://nodejs.org/en/) 839 | - [VSCode Keybindings](https://code.visualstudio.com/docs/getstarted/keybindings) 840 | - [Git](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git) 841 | - [What is a terminal?](https://code.visualstudio.com/docs/editor/integrated-terminal) 842 | 843 | ### Mac & Linux Setup 844 | 845 | ### Windows Setup 846 | - [WSL](https://docs.microsoft.com/en-us/windows/wsl/install) 847 | - When working in WSL, use Linux commands instead of Windows commands 848 | - [TroubleShooting](https://docs.microsoft.com/en-us/windows/wsl/troubleshooting) 849 | - `curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash` 850 | 851 | > ⚠️ Please use Gitpod as an absolute last resort 852 | ### Gitpod 853 | - [Gitpod](https://www.gitpod.io/) 854 | - **If using this, NEVER share a private key with real money on Gitpod** 855 | - Ideally you figure out the MacOS, Linux, or Windows install though 856 | 857 | ## Local Development Introduction 858 | - `CMD + K` or `CTRL + K` clears the terminal 859 | - `mkdir ethers-simple-storage-fcc` 860 | - `code .` to open VSCode in a new VSCode window 861 | ### Optional Javascript Crash Courses 862 | - [NodeJS Course](https://www.youtube.com/watch?v=RLtyhwFtXQA) 863 | - [Javascript Course](https://www.youtube.com/watch?v=jS4aFq5-91M) 864 | - Import your `SimpleStorage.sol` 865 | - [Solidity + Hardhat VSCode Extension](https://marketplace.visualstudio.com/items?itemName=NomicFoundation.hardhat-solidity) 866 | 867 | - Format your solidity code with: 868 | ``` 869 | "[solidity]": { 870 | "editor.defaultFormatter": "NomicFoundation.hardhat-solidity" 871 | }, 872 | "[javascript]":{ 873 | "editor.defaultFormatter": "esbenp.prettier-vscode" 874 | } 875 | ``` 876 | In your `.vscode/settings.json` file. 877 | - [Prettier Extension](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode) 878 | ## Tiny Javascript Refresher 879 | - [Javascript Tips](https://www.freecodecamp.org/news/learn-javascript-free-js-courses-for-beginners/) 880 | ## Asynchronous Programming in Javascript 881 | - [Asynchronous Programming](https://www.bmc.com/blogs/asynchronous-programming/) 882 | - [async keyword](https://www.w3schools.com/JS//js_async.asp) 883 | - [Promise in Javascript](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) 884 | - [await keyword](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/await) 885 | ## Compiling our Solidity 886 | - [Yarn Install](https://yarnpkg.com/getting-started/install) 887 | - [solc-js](https://github.com/ethereum/solc-js) 888 | - `yarn add solc@0.8.7-fixed` 889 | - [yarn scripts](https://classic.yarnpkg.com/lang/en/docs/cli/run/) 890 | ## Ganache & Networks 891 | - [Ganache](https://trufflesuite.com/ganache/) 892 | - Networks in Metamask 893 | - RPC URL 894 | - [Geth](https://github.com/ethereum/go-ethereum) 895 | - [JSON RPC Spec Playground](https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/execution-apis/assembled-spec/openrpc.json&uiSchema%5BappBar%5D%5Bui:splitView%5D=false&uiSchema%5BappBar%5D%5Bui:input%5D=false&uiSchema%5BappBar%5D%5Bui:examplesDropdown%5D=false) 896 | ## Introduction to Ethers.js 897 | - [Ethers.js](https://docs.ethers.io/v5/getting-started/) 898 | - [prettier-plugin-solidity](https://github.com/prettier-solidity/prettier-plugin-solidity) 899 | ### A Note on the await Keyword 900 | ## Adding Transaction Overrides 901 | ## Transaction Receipts 902 | ## Sending a "raw" Transaction in Ethers.js 903 | ## Interacting with Contracts in Ethers.js 904 | - [EVM Decompiler](https://ethervm.io/decompile) 905 | - [BigNumber](https://docs.ethers.io/v5/api/utils/bignumber/) 906 | ## Environment Variables 907 | - [dotenv](https://www.npmjs.com/package/dotenv) 908 | - [.gitignore](https://www.atlassian.com/git/tutorials/saving-changes/gitignore) 909 | ## Better Private Key Management 910 | - [wallet.encrypt](https://docs.ethers.io/v5/api/signer/#Wallet-encrypt) 911 | - [THE .ENV PLEDGE](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/5) 912 | ## Optional Prettier Formatting 913 | - [Prettier](https://prettier.io/docs/en/index.html) 914 | - [Best README Template](https://github.com/othneildrew/Best-README-Template) 915 | ## Deploying to a Testnet or a Mainnet 916 | - [Alchemy](https://alchemy.com/?a=673c802981) 917 | - [Getting your private key from Metamask](https://metamask.zendesk.com/hc/en-us/articles/360015289632-How-to-Export-an-Account-Private-Key) 918 | - `CTRL + C` stops any terminal command 919 | ## Verifying on Block Explorers from the UI 920 | ## Alchemy Dashboard & The Mempool 921 | - [Special Guest Albert Hu](https://twitter.com/thatguyintech) 922 | - [Mempool](https://ethereum.org/en/developers/tutorials/sending-transactions-using-web3-and-alchemy/#see-your-transaction-in-the-mempool) 923 | ## Lesson 5 Recap 924 | ### Typescript Ethers Simple Storage 925 | 926 | # Lesson 6: Hardhat Simple Storage 927 | 928 | *[⌨️ (08:20:17) Lesson 6: Hardhat Simple Storage](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=30017s)* 929 | 930 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-simple-storage-fcc 931 | 932 | ## Introduction 933 | *[⌨️ (08:20:19) Introduction](https://youtu.be/gyMwXuJrbJQ?t=30019)* 934 | ## Hardhat Setup 935 | *[⌨️ (08:22:47) Hardhat Setup](https://youtu.be/gyMwXuJrbJQ?t=30167)* 936 | - [Hardhat Documentation](https://hardhat.org/) 937 | - [DevDependencies vs Dependencies](https://stackoverflow.com/questions/18875674/whats-the-difference-between-dependencies-devdependencies-and-peerdependencies) 938 | - [@ Sign node modules](https://stackoverflow.com/questions/36667258/what-is-the-meaning-of-the-at-prefix-on-npm-packages) 939 | 940 | ### Troubleshooting Hardhat Setup 941 | *[⌨️ (08:29:43) Troubleshooting Hardhat Setup](https://youtu.be/gyMwXuJrbJQ?t=30583)* 942 | - [Special Guest Cami Ramos Garzon](https://twitter.com/camiinthisthang) 943 | ## Hardhat Setup Continued 944 | *[⌨️ (08:31:48) Hardhat Setup Continued](https://youtu.be/gyMwXuJrbJQ?t=30708)* 945 | ## Deploying SimpleStorage from Hardhat 946 | *[⌨️ (08:33:10) Deploying SimpleStorage from Hardhat](https://youtu.be/gyMwXuJrbJQ?t=30790)* 947 | ## Networks in Hardhat 948 | *[⌨️ (08:41:44) Networks in Hardhat](https://youtu.be/gyMwXuJrbJQ?t=31304)* 949 | - [The Hardhat Network](https://hardhat.org/hardhat-network/) 950 | - [Hardhat configuration](https://hardhat.org/config/#configuration) 951 | - [Chain ID List](https://chainlist.org/) 952 | ## Programmatic Verification 953 | *[⌨️ (08:51:16) Programmatic Verification](https://youtu.be/gyMwXuJrbJQ?t=31876)* 954 | - [Etherscan Verify Tutorial](https://docs.etherscan.io/tutorials/verifying-contracts-programmatically) 955 | - [Etherscan Docs](https://docs.etherscan.io/) 956 | - [Hardhat-Etherscan](https://hardhat.org/plugins/nomiclabs-hardhat-etherscan.html) 957 | - [Etherscan API Keys](https://info.etherscan.com/api-keys/) 958 | - [Javascript == vs ===](https://stackoverflow.com/questions/359494/which-equals-operator-vs-should-be-used-in-javascript-comparisons) 959 | ## Interacting with Contracts in Hardhat 960 | *[⌨️ (09:06:37) Interacting with Contracts in Hardhat](https://youtu.be/gyMwXuJrbJQ?t=32797)* 961 | ## Artifacts Troubleshooting 962 | *[⌨️ (09:09:42) Artifacts Troubleshooting](https://youtu.be/gyMwXuJrbJQ?t=32982)* 963 | ## Custom Hardhat Tasks 964 | *[⌨️ (09:10:52) Custom Hardhat Tasks](https://youtu.be/gyMwXuJrbJQ?t=33052)* 965 | - [Hardhat Tasks](https://hardhat.org/guides/create-task.html) 966 | - [Javascript Arrow Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions) 967 | ## Hardhat Localhost Node 968 | *[⌨️ (09:18:12) Hardhat Localhost Node](https://youtu.be/gyMwXuJrbJQ?t=33492)* 969 | ## The Hardhat Console 970 | *[⌨️ (09:23:11) The Hardhat Console](https://youtu.be/gyMwXuJrbJQ?t=33791)* 971 | - [Hardhat Console](https://hardhat.org/guides/hardhat-console.html) 972 | ## Hardhat Tests 973 | *[⌨️ (09:26:13) Hardhat Tests](https://youtu.be/gyMwXuJrbJQ?t=33973)* 974 | - [Hardhat Tests](https://hardhat.org/tutorial/testing-contracts.html#_5-testing-contracts) 975 | - [Mocha Style Tests](https://mochajs.org/) 976 | - [Chai](https://www.npmjs.com/package/chai) 977 | - [Waffle Tests](https://ethereum-waffle.readthedocs.io/en/latest/) 978 | ## Hardhat Gas Reporter 979 | *[⌨️ (09:38:10) Hardhat Gas Reporter](https://youtu.be/gyMwXuJrbJQ?t=34690)* 980 | - [Hardhat Gas Reporter](https://www.npmjs.com/package/hardhat-gas-reporter) 981 | - [Coinmarketcap API](https://coinmarketcap.com/api/) 982 | ## Solidity Coverage 983 | *[⌨️ (09:44:40) Solidity Coverage](https://youtu.be/gyMwXuJrbJQ?t=35080)* 984 | - [Solidity Coverage](https://github.com/sc-forks/solidity-coverage) 985 | ## Hardhat Waffle 986 | *[⌨️ (09:47:02) Hardhat Waffle](https://youtu.be/gyMwXuJrbJQ?t=35222)* 987 | - [Hardhat-Waffle](https://npm.io/package/@nomiclabs/hardhat-waffle) 988 | ## Lesson 6 Recap 989 | *[⌨️ (09:47:37) Lesson 6 Recap](https://youtu.be/gyMwXuJrbJQ?t=35257)* 990 | ### Typescript Hardhat Simple Storage 991 | *[⌨️ (09:52:15) Typescript Hardhat Simple Storage](https://youtu.be/gyMwXuJrbJQ?t=35535)* 992 | - [Typechain](https://github.com/dethcrypto/TypeChain) 993 | 994 | ``` 995 | yarn add --dev @typechain/ethers-v5 @typechain/hardhat @types/chai @types/node @types/mocha ts-node typechain typescript 996 | ``` 997 | 998 | # Lesson 7: Hardhat Fund Me 999 | 1000 | *[⌨️ (10:00:48) Lesson 7: Hardhat Fund Me](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=36048s)* 1001 | 1002 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-fund-me-fcc 1003 | 1004 | ## Introduction 1005 | *[⌨️ (10:00:50) Introduction](https://youtu.be/gyMwXuJrbJQ?t=36050)* 1006 | ## Hardhat Setup - Fund Me 1007 | *[⌨️ (10:03:41) Hardhat Setup - Fund Me](https://youtu.be/gyMwXuJrbJQ?t=36221)* 1008 | ## Linting 1009 | *[⌨️ (10:06:20) Linting](https://youtu.be/gyMwXuJrbJQ?t=36380)* 1010 | - [Eslint](https://eslint.org/) 1011 | - [Solhint](https://github.com/protofire/solhint) 1012 | - [Linting Code](https://www.perforce.com/blog/qac/what-lint-code-and-why-linting-important) 1013 | ## Hardhat Setup - Fund Me - Continued 1014 | *[⌨️ (10:07:47) Hardhat Setup - Fund Me - Continued](https://youtu.be/gyMwXuJrbJQ?t=36467)* 1015 | ## Importing from NPM 1016 | *[⌨️ (10:09:38) Importing from NPM](https://youtu.be/gyMwXuJrbJQ?t=36578)* 1017 | - [@chainlink/contracts](https://www.npmjs.com/package/@chainlink/contracts) 1018 | ## Hardhat Deploy 1019 | *[⌨️ (10:10:43) Hardhat Deploy](https://youtu.be/gyMwXuJrbJQ?t=36643)* 1020 | - [Hardhat Deploy](https://github.com/wighawag/hardhat-deploy) 1021 | ## Mocking 1022 | *[⌨️ (10:21:05) Mocking](https://youtu.be/gyMwXuJrbJQ?t=37265)* 1023 | - [Mocking](https://stackoverflow.com/questions/2665812/what-is-mocking) 1024 | - [Aave Github](https://github.com/aave/aave-v3-core) 1025 | - [Chainlink Github](https://github.com/smartcontractkit/chainlink) 1026 | - Multiple Versions of Solidity 1027 | - Tags in hardhat 1028 | ## Utils Folder 1029 | *[⌨️ (10:52:51) Utils Folder](https://youtu.be/gyMwXuJrbJQ?t=39171)* 1030 | ## Testnet Demo - Hardhat Fund Me 1031 | *[⌨️ (10:55:45) Testnet Demo - Hardhat Fund Me](https://youtu.be/gyMwXuJrbJQ?t=39345)* 1032 | - Hardhat Deploy Block Confirmations 1033 | ## Solidity Style Guide 1034 | *[⌨️ (11:00:10) Solidity Style Guide](https://youtu.be/gyMwXuJrbJQ?t=39610)* 1035 | - [Style Guide](https://docs.soliditylang.org/en/v0.8.15/style-guide.html) 1036 | - [NatSpec](https://docs.soliditylang.org/en/v0.8.15/natspec-format.html) 1037 | ## Testing Fund Me 1038 | *[⌨️ (11:08:36) Testing Fund Me](https://youtu.be/gyMwXuJrbJQ?t=40116)* 1039 | - [Unit Testing](https://en.wikipedia.org/wiki/Unit_testing) 1040 | - [Hardhat Deploy Fixtures](https://github.com/wighawag/hardhat-deploy#creating-fixtures) 1041 | - [ethers.getContract](https://github.com/wighawag/hardhat-deploy-ethers) 1042 | - [expect](https://ethereum-waffle.readthedocs.io/en/latest/matchers.html) 1043 | - [ethers.utils.parseUnits](https://docs.ethers.io/v5/api/utils/display-logic/#utils-parseUnits) 1044 | - [Waffle Chai Matchers](https://ethereum-waffle.readthedocs.io/en/latest/matchers.html) 1045 | ## Breakpoints & Debugging 1046 | *[⌨️ (11:30:39) Breakpoints & Debugging](https://youtu.be/gyMwXuJrbJQ?t=41439)* 1047 | - [VSCode Breakpoints](https://code.visualstudio.com/Docs/editor/debugging) 1048 | ## Gas III 1049 | *[⌨️ (11:33:40) Gas III](https://youtu.be/gyMwXuJrbJQ?t=41620)* 1050 | - [Transaction Response](https://docs.ethers.io/v5/api/providers/types/#providers-TransactionResponse) 1051 | - [Transaction Receipt](https://docs.ethers.io/v5/api/providers/types/#providers-TransactionReceipt) 1052 | ## console.log & Debugging 1053 | *[⌨️ (11:36:35) console.log & Debugging](https://youtu.be/gyMwXuJrbJQ?t=41795)* 1054 | - [Hardhat console.log](https://hardhat.org/hardhat-network/reference/#console-log) 1055 | ## Testing Fund Me II 1056 | *[⌨️ (11:37:31) Testing Fund Me II](https://youtu.be/gyMwXuJrbJQ?t=41851)* 1057 | ## Storage in Solidity 1058 | *[⌨️ (11:44:34) Storage in Solidity](https://youtu.be/gyMwXuJrbJQ?t=42274)* 1059 | - [Storage Layout](https://docs.soliditylang.org/en/v0.8.13/internals/layout_in_storage.html) 1060 | - [Purpose of the memory keyword](https://stackoverflow.com/questions/33839154/in-ethereum-solidity-what-is-the-purpose-of-the-memory-keyword) 1061 | - [getStorageAt](https://docs.ethers.io/v5/api/providers/provider/#Provider-getStorageAt) 1062 | ## Gas Optimizations using Storage Knowledge 1063 | *[⌨️ (11:52:38) Gas Optimizations using Storage Knowledge](https://youtu.be/gyMwXuJrbJQ?t=42758)* 1064 | - [Opcodes](https://ethereum.org/en/developers/docs/evm/opcodes/) 1065 | - [Opcodes by Gas](https://github.com/crytic/evm-opcodes) 1066 | - [Opcodes by Gas](https://evm.codes/) 1067 | - Append `s_` to storage variables 1068 | - Append `i_` to immutable variables 1069 | - Caps lock and underscore constant variables 1070 | ## Solidity Chainlink Style Guide 1071 | *[⌨️ (12:05:29) Solidity Chainlink Style Guide](https://youtu.be/gyMwXuJrbJQ?t=43529)* 1072 | - [Chainlink Solidity Style Guide](https://github.com/smartcontractkit/full-blockchain-solidity-course-js/issues/13) 1073 | ## Storage Review 1074 | *[⌨️ (12:09:59) Storage Review](https://youtu.be/gyMwXuJrbJQ?t=43799)* 1075 | ## Staging Tests 1076 | *[⌨️ (12:11:43) Staging Tests](https://youtu.be/gyMwXuJrbJQ?t=43903)* 1077 | - [Ternary](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Conditional_Operator) 1078 | ## Running Scripts on a Local Node 1079 | *[⌨️ (12:17:58) Running Scripts on a Local Node](https://youtu.be/gyMwXuJrbJQ?t=44278)* 1080 | ## Adding Scripts to your package.json 1081 | *[⌨️ (12:22:00) Adding Scripts to your package.json](https://youtu.be/gyMwXuJrbJQ?t=44520)* 1082 | ## Pushing to GitHub 1083 | *[⌨️ (12:25:17) Pushing to GitHub](https://youtu.be/gyMwXuJrbJQ?t=44717)* 1084 | - [Github Quickstart](https://docs.github.com/en/get-started/quickstart) 1085 | - [What is Git?](https://www.git-scm.com/book/en/v2/Getting-Started-What-is-Git%3F) 1086 | - [The quickstart that we follow in the video](https://docs.github.com/en/get-started/importing-your-projects-to-github/importing-source-code-to-github/adding-locally-hosted-code-to-github#adding-a-local-repository-to-github-using-git) 1087 | - [Learn about git and GitHub](https://www.youtube.com/watch?v=RGOj5yH7evk) 1088 | ## 🐸🐦 [Tweet Me (add your repo in)!](https://twitter.com/intent/tweet?text=I%20just%20made%20my%20first%20Smart%20Contract%20repo%20using%20@solidity_lang,%20@HardhatHQ,%20@chainlink,%20@AlchemyPlatform,%20and%20more!%0a%0aThanks%20@PatrickAlphaC!!) 1089 | 1090 | # Lesson 8: HTML / Javascript Fund Me (Full Stack / Front End) 1091 | 1092 | *[⌨️ (12:32:57) Lesson 8: HTML / Javascript Fund Me (Full Stack / Front End)](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=45177s)* 1093 | 1094 | 💻 Code: https://github.com/PatrickAlphaC/html-fund-me-fcc 1095 | 1096 | ## Introduction 1097 | ## How Websites work with Web3 Wallets 1098 | - [How to Connect your Smart Contracts to Metamask](https://www.youtube.com/watch?v=pdsYCkUWrgQ) 1099 | - 💻 Code from Video: https://github.com/PatrickAlphaC/full-stack-web3-metamask-connectors 1100 | - ✍️ Article from Video: https://betterprogramming.pub/everything-you-need-to-know-about-fullstack-web3-94c0f1b18019?sk=a2764bcbdae98bf05e1052931de77982 1101 | ## HTML Setup 1102 | - Live Server: ExtensionID: ritwickdey.LiveServer 1103 | ## Connecting HTML to Metamask 1104 | - [Metamask Docs](https://docs.metamask.io/guide/) 1105 | ## Javascript in it's own file 1106 | ## ES6 vs Nodejs 1107 | - [ES6 vs Nodesjs](https://stackoverflow.com/questions/31354559/using-node-js-require-vs-es6-import-export#31367852) 1108 | - [Ethers docs for web browser](https://docs.ethers.io/v5/getting-started/#getting-started--importing--web-browser) 1109 | - [module vs text/javascript](https://stackoverflow.com/questions/51418964/script-type-text-javascript-vs-script-type-module) 1110 | ## Sending a transaction from a Website 1111 | - [Web3Provider](https://docs.ethers.io/v5/api/providers/other/#Web3Provider) 1112 | - [Adding a network to metamask](https://metamask.zendesk.com/hc/en-us/articles/360043227612-How-to-add-a-custom-network-RPC) 1113 | ## Resetting an Account in Metamask 1114 | ``` 1115 | MetaMask - RPC Error: 1116 | [ethjs-query] while formatting ouputs from RPC '{"value":{"code":-32603,"data":{"code":-32000,"message":"Nonce too high. Expected nonce to be 2 but got 4. Note that transactions can't be queued when automining."}}}' 1117 | ``` 1118 | ## Listening for Events and Completed Transactions 1119 | - [provider.once](https://docs.ethers.io/v5/api/providers/provider/#Provider-once) 1120 | - [Anonymous function](https://www.geeksforgeeks.org/javascript-anonymous-functions/) 1121 | - [Javascript Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) 1122 | ## Input Forms 1123 | ## Reading from the Blockchain 1124 | ## Withdraw Function 1125 | ## Lesson 8 Recap 1126 | ### Optional Links: 1127 | - [Browserify](https://browserify.org/) 1128 | - [Watchify](https://www.npmjs.com/package/watchify) 1129 | 1130 | # Lesson 9: Hardhat Smart Contract Lottery 1131 | 1132 | *[⌨️ (13:41:02) Lesson 9: Hardhat Smart Contract Lottery](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=49262s)* 1133 | 1134 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-smartcontract-lottery-fcc 1135 | 1136 | ## Introduction 1137 | ## Hardhat Setup - Smart Contract Lottery 1138 | *[⌨️ (13:43:43) Hardhat Setup](https://youtu.be/gyMwXuJrbJQ?t=49423)* 1139 | - Install dependencies: 1140 | ```bash 1141 | yarn add --dev @nomiclabs/hardhat-ethers@npm:hardhat-deploy-ethers ethers @nomiclabs/hardhat-etherscan @nomiclabs/hardhat-waffle chai ethereum-waffle hardhat hardhat-contract-sizer hardhat-deploy hardhat-gas-reporter prettier prettier-plugin-solidity solhint solidity-coverage dotenv 1142 | ``` 1143 | - Install dependencies (Typescript version): 1144 | ```bash 1145 | yarn add --dev @nomiclabs/hardhat-ethers@npm:hardhat-deploy-ethers ethers @nomiclabs/hardhat-etherscan @nomiclabs/hardhat-waffle chai ethereum-waffle hardhat hardhat-contract-sizer hardhat-deploy hardhat-gas-reporter prettier prettier-plugin-solidity solhint solidity-coverage dotenv @typechain/ethers-v5 @typechain/hardhat @types/chai @types/node ts-node typechain typescript 1146 | ``` 1147 | ## Raffle.sol Setup 1148 | *[⌨️ (13:46:55) Raffle.sol Setup](https://youtu.be/gyMwXuJrbJQ?t=49615)* 1149 | - [Custom Errors in Solidity](https://blog.soliditylang.org/2021/04/21/custom-errors/) 1150 | ## Introduction to Events 1151 | *[⌨️ (13:54:02) Introduction to Events](https://youtu.be/gyMwXuJrbJQ?t=50042)* 1152 | - [Events & Logging Video](https://www.youtube.com/watch?v=KDYJC85eS5M) 1153 | - [Events & Logging in Hardhat](https://github.com/PatrickAlphaC/hardhat-events-logs) 1154 | ## Events in Raffle.sol 1155 | *[⌨️ (14:00:47) Events in Raffle.sol](https://youtu.be/gyMwXuJrbJQ?t=50447)* 1156 | ## Introduction to Chainlink VRF 1157 | *[⌨️ (14:02:30) Introduction to Chainlink VRF](https://youtu.be/gyMwXuJrbJQ?t=50550)* 1158 | - [Special Guest Stephen Fluin](https://twitter.com/stephenfluin) 1159 | ### Sub-Lesson: Chainlink VRF 1160 | > - [Chainlink VRFv2 Docs](https://docs.chain.link/docs/get-a-random-number/) 1161 | > - [Chainlink VRFv2 Walkthrough](https://www.youtube.com/watch?v=rdJ5d8j1RCg) 1162 | > - [Chainlink Contracts](https://github.com/smartcontractkit/chainlink/blob/develop/contracts/src/v0.8/VRFConsumerBase.sol) 1163 | ## Implementing Chainlink VRF - Introduction 1164 | *[⌨️ (14:09:53) Implementing Chainlink VRF](https://youtu.be/gyMwXuJrbJQ?t=50993)* 1165 | ### Hardhat Shorthand 1166 | - [Hardhat Shorthand](https://hardhat.org/guides/shorthand.html) 1167 | ## Implementing Chainlink VRF - The Request 1168 | ## Implementing Chainlink VRF - The FulFill 1169 | ### Modulo 1170 | - [Modulo](https://docs.soliditylang.org/en/v0.8.13/types.html?highlight=modulo#modulo) 1171 | ## Introduction to Chainlink Keepers 1172 | - [Chainlink Keepers Docs](https://docs.chain.link/docs/chainlink-keepers/introduction/) 1173 | - [Chainlink Keepers Walkthrough](https://www.youtube.com/watch?v=-Wkw5JVQGUo) 1174 | ## Implementing Chainlink Keepers - checkUpkeep 1175 | ### Enums 1176 | - [Enum](https://docs.soliditylang.org/en/v0.8.13/structure-of-a-contract.html?highlight=enum#enum-types) 1177 | ## Implementing Chainlink Keepers - checkUpkeep continued 1178 | - block.timestamp 1179 | ## Implementing Chainlink Keepers - performUpkeep 1180 | ## Code Cleanup 1181 | ## Deploying Raffle.sol 1182 | ### Mock Chainlink VRF Coordinator 1183 | ### Continued 1184 | - [LINK Token](https://docs.chain.link/docs/link-token-contracts/) 1185 | ## Raffle.sol Unit Tests 1186 | - We use `async function` in the describe blocks at the start, but we correctly take them out later. 1187 | ### Testing Events & Chai Matchers 1188 | - [Emit Chai Matcher](https://ethereum-waffle.readthedocs.io/en/latest/matchers.html#emitting-events) 1189 | ### Continued I 1190 | ## Hardhat Methods & Time Travel 1191 | - [Make Hardhat do whatever you want it to](https://hardhat.org/hardhat-network/reference/) 1192 | - [Special debugging hardhat methods](https://hardhat.org/hardhat-network/reference/#special-testing-debugging-methods) 1193 | ### Continued II 1194 | ## Callstatic 1195 | - [Callstatic](https://docs.ethers.io/v5/api/contract/contract/#contract-callStatic) 1196 | ### Continued III 1197 | ### Massive Promise Test 1198 | ### Continued IV 1199 | ## Raffle.sol Staging Tests 1200 | ## Testing on a Testnet 1201 | ### Recommended LINK amounts for Rinkeby Staging Test: 1202 | - Chainlink VRF: 2 LINK 1203 | - Chainlink Keepers: 8 LINK 1204 | ## Conclusion 1205 | ## Typescript - Smart Contract Lottery 1206 | 1207 | 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 Completed Hardhat Basics! 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 1208 | 1209 | # Lesson 10: NextJS Smart Contract Lottery (Full Stack / Front End) 1210 | 1211 | *[⌨️ (16:34:07) Lesson 10: NextJS Smart Contract Lottery (Full Stack / Front End)](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=59647s)* 1212 | 1213 | 💻 Code: https://github.com/PatrickAlphaC/nextjs-smartcontract-lottery-fcc 1214 | 1215 | ⚡️⚡️ Live Demo IPFS: ipfs://QmXwACyjcS8tL7UkYwimpqMqW9sKzSHUjE4uSZBSyQVuEH 1216 | 1217 | ⚡️⚡️ Live Demo Fleek: https://fancy-dream-3458.on.fleek.co/ 1218 | 1219 | ## Introduction 1220 | We move into using [NextJS](https://nextjs.org/) for our front end. NextJS is a [React framework](https://reactjs.org/) for building websites. 1221 | 1222 | ### Optional Sub-Lesson: Full Stack Development & Other Libraries 1223 | - [6 Ways to connect your dapp to a wallet](https://www.youtube.com/watch?v=pdsYCkUWrgQ) 1224 | - [NextJS Crash Course](https://www.youtube.com/watch?v=mTz0GXj8NN0) 1225 | - Other React libraries: 1226 | - [Web3React](https://github.com/NoahZinsmeister/web3-react) 1227 | - [wagmi](https://github.com/tmm/wagmi) 1228 | - [react-moralis](https://www.npmjs.com/package/react-moralis) 1229 | - [useDapp](https://github.com/TrueFiEng/useDApp) 1230 | - [Web3Modal](https://github.com/Web3Modal/web3modal) 1231 | - [useMetamask](https://github.com/mdtanrikulu/use-metamask) 1232 | - Other Full Stack Web3 Templates 1233 | - [scaffold-eth](https://github.com/scaffold-eth/scaffold-eth) 1234 | - [ethereum-boilerplate](https://github.com/ethereum-boilerplate/ethereum-boilerplate) 1235 | - [create-eth-app](https://github.com/paulrberg/create-eth-app) 1236 | - [React being quite popular](https://insights.stackoverflow.com/survey/2021#section-most-popular-technologies-web-frameworks) 1237 | - [Why use react?](https://www.freecodecamp.org/news/why-use-react-for-web-development/) 1238 | 1239 | ## NextJS Setup 1240 | - [NextJS Documentation](https://nextjs.org/learn/basics/create-nextjs-app) 1241 | - [NextJS Minimal Ethers Example For Lottery](https://github.com/PatrickAlphaC/nextjs-ethers-introduction) 1242 | 1243 | ``` 1244 | yarn create next-app . 1245 | ``` 1246 | ## Manual Header I 1247 | - [What is a component?](https://www.w3schools.com/react/react_components.asp) 1248 | - [jsx](https://reactjs.org/docs/introducing-jsx.html) 1249 | - [Moralis](https://moralis.io/) 1250 | - [React Moralis](https://github.com/MoralisWeb3/react-moralis) 1251 | ### React Hooks 1252 | - [What is a react hook?](https://reactjs.org/docs/hooks-overview.html) 1253 | ## Manual Header II 1254 | ## useEffect Hook 1255 | - [useEffect Hook](https://reactjs.org/docs/hooks-effect.html) 1256 | - [More on useEffect](https://blog.logrocket.com/guide-to-react-useeffect-hook/) 1257 | - [React Context](https://www.freecodecamp.org/news/react-context-for-beginners/) 1258 | - [useEffect Firing Twice](https://stackoverflow.com/questions/60618844/react-hooks-useeffect-is-called-twice-even-if-an-empty-array-is-used-as-an-ar) 1259 | ## Local Storage 1260 | - [Local Storage](https://codinglead.co/javascript/what-is-localstorage) 1261 | ## isWeb3EnabledLoading 1262 | ## web3uikit 1263 | - [web3uikit](https://github.com/web3ui/web3uikit) 1264 | - [web3uikit interactive docs](https://web3ui.github.io/web3uikit/?path=/story/1-web3-blockie--custom-seed) 1265 | - [web3uikit connect button](https://web3ui.github.io/web3uikit/?path=/story/1-web3-connectbutton--default) 1266 | ## Introduction to Calling Functions in Nextjs 1267 | - [useWeb3Contract](https://github.com/MoralisWeb3/react-moralis#useweb3contract) 1268 | ### Automatic Constant Value UI Updater 1269 | - [ethers.utils.FormatTypes](https://docs.ethers.io/v5/api/utils/abi/fragments/#fragments--formats) 1270 | ### runContractFunction 1271 | - [Moralis Provider](https://github.com/MoralisWeb3/react-moralis#wrap-your-app-in-a-moralisprovider) 1272 | - [useMoralis](https://github.com/MoralisWeb3/react-moralis#usemoralis) 1273 | - [parseInt](https://www.w3schools.com/JSREF/jsref_parseint.asp) 1274 | ## useState 1275 | - [useState Hook](https://reactjs.org/docs/hooks-state.html) 1276 | ## Calling Functions in NextJS 1277 | ## useNotification 1278 | - Add `onError` to all your `runContractFunction` calls 1279 | ## Reading & Displaying Contract Data 1280 | ## A Note about `onSuccess` 1281 | - `onSuccess` just checks to see if MetaMask sends the transaction, not 1282 | ## A Challenge to You 1283 | ## Tailwind & Styling 1284 | - [Learn CSS](https://www.w3schools.com/css/) 1285 | - [Tailwindcss](https://tailwindcss.com/) 1286 | - [PostCSS Extension](https://marketplace.visualstudio.com/items?itemName=csstools.postcss) 1287 | - [Tailwind Extension](https://marketplace.visualstudio.com/items?itemName=bradlc.vscode-tailwindcss) 1288 | - [Install Tailwind into NextJS](https://tailwindcss.com/docs/guides/nextjs) 1289 | ## Introduction to Hosting your Site 1290 | *[⌨️ (18:12:50) Introdunction to Hosting your Site](https://youtu.be/gyMwXuJrbJQ?t=65570)* 1291 | - [Vercel](https://vercel.com/) 1292 | - [Moralis](https://moralis.io/) 1293 | - [Netilfy](https://www.netlify.com/) 1294 | - [IPFS](https://ipfs.io/) 1295 | ## IPFS 1296 | *[⌨️ (18:15:14) IPFS](https://youtu.be/gyMwXuJrbJQ?t=65714)* 1297 | - [What is IPFS](https://www.youtube.com/watch?v=5Uj6uR3fp-U) 1298 | - [IPFS](https://ipfs.io/) 1299 | ## Hosting on IPFS 1300 | *[⌨️ (18:18:51) Hosting on IPFS](https://youtu.be/gyMwXuJrbJQ?t=65931)* 1301 | - [IPFS Companion](https://chrome.google.com/webstore/detail/ipfs-companion/nibjojkomfdiaoajekhjakgkdhaomnch) 1302 | - [Brave Browser](https://brave.com/) 1303 | - `yarn build && yarn next export` 1304 | ## Hosting on IPFS & Filecoin using Fleek 1305 | *[⌨️ (18:25:45) Hosting on IPFS & Filecoin using Fleek](https://youtu.be/gyMwXuJrbJQ?t=66345)* 1306 | - [Fleek](https://fleek.co/) 1307 | ## Filecoin Overview 1308 | *[⌨️ (18:31:28) Filecoin Overview](https://youtu.be/gyMwXuJrbJQ?t=66688)* 1309 | - [Special Guest Ally Haire](https://twitter.com/DeveloperAlly) 1310 | - [IPFS URL of Ally's Video](ipfs://bafybeiasd6oxqiefoxgtskrokomexnb4zcq3fhwlcbyplx2paw65zmq2du) 1311 | ## Lesson 10 Recap 1312 | 1313 | # Lesson 11: Hardhat Starter Kit 1314 | 1315 | *[⌨️ (18:51:36) Lesson 11: Hardhat Starter Kit](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=67896s)* 1316 | 1317 | 💻 Code: https://github.com/smartcontractkit/hardhat-starter-kit 1318 | 1319 | # Lesson 12: Hardhat ERC20s 1320 | 1321 | *[⌨️ (18:59:24) Lesson 12: Hardhat ERC20s](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=68364s)* 1322 | 1323 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-erc20-fcc 1324 | 1325 | ## What is an ERC? What is an EIP? 1326 | - [What is an EIP?](https://eips.ethereum.org/) 1327 | - [EIPs codebase](https://github.com/ethereum/EIPs) 1328 | ## What is an ERC20? 1329 | - [Video (using brownie/python)](https://youtu.be/8rpir_ZSK1g?t=39) 1330 | - [EIP-20](https://eips.ethereum.org/EIPS/eip-20) 1331 | - [ERC-677](https://github.com/ethereum/EIPs/issues/677) 1332 | - [EIP-777](https://eips.ethereum.org/EIPS/eip-777) 1333 | ## Manually Creating an ERC20 Token 1334 | ## Creating an ERC20 Token with Openzeppelin 1335 | - [Openzeppelin](https://openzeppelin.com/) 1336 | - [Openzeppelin Contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) 1337 | - [Solmate (Openzeppelin alternative)](https://github.com/Rari-Capital/solmate) 1338 | ## Lesson 12 Recap 1339 | 1340 | # Lesson 13: Hardhat DeFi & Aave 1341 | 1342 | *[⌨️ (19:16:13) Lesson 13: Hardhat DeFi & Aave](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=69373s)* 1343 | 1344 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-defi-fcc 1345 | 1346 | ## What is DeFi? 1347 | - [What is DeFi?](https://chain.link/education/defi) 1348 | - [DefiLlama](https://defillama.com/) 1349 | ## What is Aave? 1350 | - [Aave](https://aave.com/) 1351 | - [My Previous Aave Video on Shorting Assets](https://www.youtube.com/watch?v=TmNGAvI-RUA) 1352 | ## Programmatic Borrowing & Lending 1353 | - [DAI](https://makerdao.com/en/) 1354 | - [Uniswap](https://app.uniswap.org/) 1355 | ## WETH - Wrapped ETH 1356 | - [WETH Token Rinkeby Etherscan](https://rinkeby.etherscan.io/token/0xc778417e063141139fce010982780140aa0cd5ab#writeContract) 1357 | - [WETH Token Mainnet](https://etherscan.io/token/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2) 1358 | ## Forking Mainnet 1359 | - [Mainnet Forking](https://hardhat.org/hardhat-network/guides/mainnet-forking.html) 1360 | ## Depositing into Aave 1361 | - [Aave V2 Docs](https://docs.aave.com/developers/v/2.0/) 1362 | - [Aave NPM](https://www.npmjs.com/package/@aave/protocol-v2) 1363 | ## Borrowing from Aave 1364 | - [Aave Borrowing FAQs](https://docs.aave.com/faq/borrowing) 1365 | - [Health Factor](https://docs.aave.com/faq/borrowing#what-is-the-health-factor) 1366 | - [Aave Risk Parameters](https://docs.aave.com/risk/asset-risk/risk-parameters) 1367 | ## Repaying with Aave 1368 | ## Visualizing the Transactions 1369 | - [aTokens](https://docs.aave.com/developers/v/1.0/developing-on-aave/the-protocol/atokens) 1370 | ## Lesson 13 Recap 1371 | ## Happy Bow-Tie Friday with Austin Griffith 1372 | - [Special Guest Austin Griffith](https://twitter.com/austingriffith)! 1373 | - [Speed Run Ethereum](https://speedrunethereum.com/) 1374 | ### More DeFi Learnings: 1375 | - [Defi-Minimal](https://github.com/smartcontractkit/defi-minimal/tree/main/contracts) 1376 | - [Defi Dad](https://www.youtube.com/channel/UCatItl6C7wJp9txFMbXbSTg) 1377 | 1378 | 1379 | # Lesson 14: Hardhat NFTs (EVERYTHING you need to know about NFTs) 1380 | 1381 | *[⌨️ (20:28:51) Lesson 14: Hardhat NFTs ](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=73731s)* 1382 | 1383 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-nft-fcc 1384 | 1385 | ## What is an NFT? 1386 | - [Video](https://www.youtube.com/watch?v=9yuHz6g_P50) 1387 | - [Optional: All on Chain SVG NFT](https://www.youtube.com/watch?v=9oERTH9Bkw0) 1388 | - [EIP-721](https://eips.ethereum.org/EIPS/eip-721) 1389 | ## Code Overview 1390 | - [Opensea Testnet](https://testnets.opensea.io/) 1391 | ## Hardhat Setup 1392 | ## Basic NFT 1393 | ### Write Tests 1394 | - [Openzeppelin NFT](https://docs.openzeppelin.com/contracts/4.x/) 1395 | ## Random IPFS NFT 1396 | ### Mapping Chainlink VRF Requests 1397 | ### Creating Rare NFTs 1398 | ### Setting the NFT Image 1399 | ### Setting an NFT Mint Price 1400 | ### Deploy Script 1401 | ### Uploading Token Images with Pinata 1402 | - [Pinata](https://pinata.cloud) 1403 | - [nft.storage](https://nft.storage) 1404 | - [Pinata NPM](https://www.npmjs.com/package/@pinata/sdk) 1405 | - [Pinata Docs](https://docs.pinata.cloud/) 1406 | ### Uploading Token URIs (metadata) with Pinata 1407 | ### Deploying 1408 | ### Tests 1409 | ## Dynamic SVG On-Chain NFT 1410 | - [Patrick's Original Video](https://www.youtube.com/watch?v=9oERTH9Bkw0) 1411 | ### What is an SVG? 1412 | - [SVG Tutorial](https://www.w3schools.com/graphics/svg_intro.asp) 1413 | - [On-Chain SVG Example](https://opensea.io/assets/matic/0x291ff90b9c410f56e047599bfee6b585c0c484d7/2) 1414 | ### Initial Code 1415 | ### Base64 Encoding 1416 | - [Base64 Encoding](https://en.wikipedia.org/wiki/Base64) 1417 | - [Example Encoder](https://base64.guru/converter/encode/image/svg) 1418 | - [base64-sol](https://www.npmjs.com/package/base64-sol/v/1.0.1) 1419 | ## Advanced: EVM Opcodes, Encoding, and Calling 1420 | ### abi.encode & abi.encodePacked 1421 | - [abi.encode](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=cheatsheet#global-variables) 1422 | - [abi.encodePacked](https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=cheatsheet#global-variables) 1423 | Thanks to [Alex Roan](https://twitter.com/alexroan) for his help on this session! 1424 | - [Example Contract Creation Transaction](https://rinkeby.etherscan.io/tx/0x924f592458b0e37ee17024f9c826b97697455cd97f6946b802bc42296e77ae43) 1425 | What REALLY is the ABI? 1426 | - [EVM Opcodes](https://www.evm.codes/) 1427 | - [More EVM Opcodes](https://github.com/crytic/evm-opcodes) 1428 | - [Solidity Cheatsheet](https://docs.soliditylang.org/en/v0.8.13/cheatsheet.html?highlight=encodewithsignature) 1429 | - [abi.encode vs abi.encodePacked](https://ethereum.stackexchange.com/questions/91826/why-are-there-two-methods-encoding-arguments-abi-encode-and-abi-encodepacked) 1430 | ### Introduction to Encoding Function Calls Directly 1431 | ### Introduction to Encoding Function Calls Recap 1432 | ### Encoding Function Calls Directly 1433 | - [Function Selector](https://blog.openzeppelin.com/deconstructing-a-solidity-contract-part-iii-the-function-selector-6a9b6886ea49/) 1434 | - [Function Signature](https://twitter.com/PatrickAlphaC/status/1517156225670078465) 1435 | ### Creating an NFT TokenURI on-Chain 1436 | ### Making the NFT Dynamic 1437 | ### Deploy Script 1438 | ## Deploying the NFTs to a Testnet 1439 | ## Lesson 14 Recap 1440 | 1441 | 1442 | Extra credit: 1443 | - [Deconstructing Solidity](https://blog.openzeppelin.com/deconstructing-a-solidity-contract-part-ii-creation-vs-runtime-6b9d60ecb44c/) 1444 | - [Knowing and controlling your Smart Contract Address](https://www.youtube.com/watch?v=56K0FdosZ8g) 1445 | - [From Solidity to byte code](https://www.youtube.com/watch?v=RxL_1AfV7N4) 1446 | 1447 | # Lesson 15: NextJS NFT Marketplace (If you finish this lesson, you are a full-stack MONSTER!) 1448 | 1449 | *[⌨️ (23:37:03) Lesson 15: NextJS NFT Marketplace (Full Stack / Front End)](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=85023s)* 1450 | 1451 | 💻 Code: 1452 | - Backend (Contracts): https://github.com/PatrickAlphaC/hardhat-nft-marketplace-fcc 1453 | - Frontend (Moralis Indexer): https://github.com/PatrickAlphaC/nextjs-nft-marketplace-moralis-fcc 1454 | - Frontend (TheGraph Indexer): https://github.com/PatrickAlphaC/nextjs-nft-marketplace-thegraph-fcc 1455 | - The Graph: https://github.com/PatrickAlphaC/graph-nft-marketplace-fcc 1456 | 1457 | Special thanks to [Matt Durkin](https://twitter.com/mdurkin92) for help with this section. 1458 | 1459 | ## Introduction 1460 | - [Opensea](https://opensea.io/) 1461 | - [Artion](https://github.com/Fantom-foundation/Artion-Contracts) 1462 | ## Part I: NFT Marketplace Contracts 1463 | ### Hardhat Setup 1464 | ### NftMarketplace.sol 1465 | - [Pull Over Push](https://fravoll.github.io/solidity-patterns/pull_over_push.html) 1466 | ## Reentrancy 1467 | - [Reentrancy](https://solidity-by-example.org/hacks/re-entrancy) 1468 | - [Rekt.news](https://rekt.news/leaderboard/) 1469 | - [Openzeppelin NonReentrant](https://docs.openzeppelin.com/contracts/4.x/api/security#ReentrancyGuard) 1470 | ### NftMarketplace.sol - Continued 1471 | ### NftMarketplace.sol - Deploy Script 1472 | ### NftMarketplace.sol - Tests 1473 | ### NftMarketplace.sol - Scripts 1474 | 1475 | ## Part II: Moralis Front End 1476 | ### What is Moralis? 1477 | - [Special Guest Ivan Liljeqvist](https://twitter.com/IvanOnTech) 1478 | ### NextJS Setup 1479 | - [Link NextJS](https://nextjs.org/docs/api-reference/next/link) 1480 | ### Adding Tailwind 1481 | - [Tailwind with NextJS](https://tailwindcss.com/docs/guides/nextjs) 1482 | ### Introduction to Indexing in Web3 1483 | - [TheGraph](https://thegraph.com/en/) 1484 | - [Moralis](https://moralis.io/) 1485 | ### Connecting Moralis to our Local Hardhat Node 1486 | - [NextJS Environment Variables](https://nextjs.org/docs/basic-features/environment-variables) 1487 | - [Reverse Proxy FRP](https://github.com/fatedier/frp/releases) 1488 | - [Docs](https://docs.moralis.io/moralis-dapp/web3/setting-up-ganache) 1489 | - [Trouble Shooting](https://docs.moralis.io/faq#frpc) 1490 | - [Moralis Forum](https://forum.moralis.io/) 1491 | - [Moralis Admin CLI](https://docs.moralis.io/moralis-dapp/tools/moralis-admin-cli) 1492 | ### Moralis Event Sync 1493 | - [Moralis Add Event Sync From Code](https://docs.moralis.io/moralis-dapp/connect-the-sdk/connect-using-node#add-new-event-sync-from-code) 1494 | #### Reset Local Chain 1495 | ### Moralis Cloud Functions 1496 | - [Moralis Cloud Functions](https://docs.moralis.io/moralis-dapp/cloud-code/cloud-functions) 1497 | - [Moralis Logging](https://docs.moralis.io/moralis-dapp/tools/moralis-admin-cli#get-logs) 1498 | - [Hardhat Network Reference](https://hardhat.org/hardhat-network/reference/) 1499 | - Moralis Database only confirms a transaction with a block confirmation - so we need to move blocks on our hardhat local node. 1500 | - [Moralis Triggers](https://docs.moralis.io/moralis-dapp/cloud-code/triggers) 1501 | #### Practice Resetting the Local Chain 1502 | ### Moralis Cloud Functions II 1503 | ### Querying the Moralis Database 1504 | - [Moralis Queries](https://docs.moralis.io/moralis-dapp/database/queries) 1505 | ### Rendering the NFT Images 1506 | - [useNFTBalance](https://github.com/MoralisWeb3/react-moralis#usenftbalances) 1507 | - [fetch](https://www.npmjs.com/package/node-fetch) 1508 | - [next/image](https://nextjs.org/docs/api-reference/next/image#loader-configuration) 1509 | ### Update Listing Modal 1510 | ### Buy NFT Listing 1511 | ### Listing NFTs for Sale 1512 | - [web3uikit Form](https://web3uikit.com/) 1513 | 1514 | ## Part III: TheGraph Front End 1515 | ### Introduction 1516 | ### What is The Graph? 1517 | - [Special Guest Nader Dabit](https://twitter.com/dabit3) 1518 | ### Building a Subgraph 1519 | - [Example Subgraphs](https://thegraph.com/explorer/) 1520 | - [The Graph Studio](https://thegraph.com/studio/) 1521 | - [GraphQL VSCode Extension](https://marketplace.visualstudio.com/items?itemName=GraphQL.vscode-graphql) 1522 | - [GraphQL](https://graphql.org/) 1523 | ### Deploying our Subgraph 1524 | - [GraphQL Queries](https://www.tutorialspoint.com/graphql/graphql_query.htm) 1525 | ### Reading from The Graph 1526 | - [@apollo/client](https://www.npmjs.com/package/@apollo/client) 1527 | - [gql](https://www.npmjs.com/package/gql) 1528 | - [The Graph Docs](https://thegraph.com/docs/en/) 1529 | ### Hosting our Dapp 1530 | 1531 | 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 Completed Front End Basics! 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 1532 | 1533 | # Lesson 16: Hardhat Upgrades 1534 | 1535 | *[⌨️ (28:53:11) Lesson 16: Hardhat Upgrades](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=103991s)* 1536 | 1537 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-upgrades-fcc 1538 | 1539 | ## Upgradable Smart Contracts Overview 1540 | - [Optional Video](https://www.youtube.com/watch?v=bdXJmWajZRY) 1541 | - [Links from Video] 1542 | ## Types of Upgrades 1543 | 1. Parameter 1544 | 2. Social Migrate 1545 | 3. Proxy 1546 | 1. Proxy Gotchas 1547 | 1. [Function Collisions](https://blog.openzeppelin.com/the-state-of-smart-contract-upgrades/#diamonds) 1548 | 2. [Storage Collisions](https://blog.openzeppelin.com/the-state-of-smart-contract-upgrades/#diamonds) 1549 | 2. [Metamorphic Upgrades](https://github.com/PatrickAlphaC/hardhat-metamorphic-upgrades-fcc) 1550 | 3. [Transparent](https://blog.openzeppelin.com/the-transparent-proxy-pattern/) 1551 | 4. [UUPS](https://forum.openzeppelin.com/t/uups-proxies-tutorial-solidity-javascript/7786) 1552 | 5. [Diamond](https://eips.ethereum.org/EIPS/eip-2535) 1553 | ## Delegatecall 1554 | - [delegatecall (solidity-by-example)](https://solidity-by-example.org/delegatecall) 1555 | - [Yul](https://docs.soliditylang.org/en/latest/yul.html) 1556 | ## Small Proxy Example 1557 | - [EIP 1967](https://eips.ethereum.org/EIPS/eip-1967) 1558 | ## Transparent Upgradable Smart Contract 1559 | - [Hardhat-deploy Proxies](https://github.com/wighawag/hardhat-deploy#deploying-and-upgrading-proxies) 1560 | - [Openzeppelin Upgrades Plugin](https://docs.openzeppelin.com/upgrades-plugins/1.x/) 1561 | - [Openzeppelin upgrades tutorial](https://forum.openzeppelin.com/t/openzeppelin-upgrades-step-by-step-tutorial-for-hardhat/3580) 1562 | - [hardhat deploy upgrades examples](https://github.com/wighawag/template-ethereum-contracts/tree/examples/openzeppelin-proxies/deploy) 1563 | 1564 | 1565 | # Lesson 17: Hardhat DAOs 1566 | 1567 | *[⌨️ (29:45:24) Lesson 17: Hardhat DAOs](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=107124s)* 1568 | 1569 | ⬆️ Up-to-date code: https://github.com/PatrickAlphaC/dao-template 1570 | 1571 | 💻 Code from video: https://github.com/PatrickAlphaC/hardhat-dao-fcc 1572 | 1573 | ## Introduction 1574 | ## What is a DAO? 1575 | - [What is a DAO?](https://www.youtube.com/watch?v=X_QKZzd68ro) 1576 | ## How to build a DAO 1577 | - [How to build a DAO](https://www.youtube.com/watch?v=AhJtmUqhAqg) 1578 | - That's Patrick 1579 | - [PY Code](https://github.com/brownie-mix/dao-mix) 1580 | - [Python Video](https://www.youtube.com/watch?v=rD8AxZ_wBA4) 1581 | - [Openzeppelin Governance](https://docs.openzeppelin.com/contracts/4.x/api/governance) 1582 | - [Compound Governance](https://compound.finance/governance) 1583 | - [Contract Wizard](https://docs.openzeppelin.com/contracts/4.x/wizard) 1584 | - [CastVoteBySig](https://forum.openzeppelin.com/t/what-is-votecastbysig/17069/2) 1585 | 1586 | # Lesson 18: Security & Auditing 1587 | 1588 | *[⌨️ (31:28:32) Lesson 18: Security & Auditing ](https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=113312s)* 1589 | 1590 | 💻 Code: https://github.com/PatrickAlphaC/hardhat-security-fcc 1591 | 1592 | ## Introduction 1593 | - [Readiness Guide](https://learn.openzeppelin.com/security-audits/readiness-guide) 1594 | ## Slither 1595 | - [Install python](https://www.python.org/downloads/) 1596 | - [Slither](https://github.com/crytic/slither#how-to-install) 1597 | - [solc-select](https://github.com/crytic/solc-select) 1598 | - [Fuzz testing](https://en.wikipedia.org/wiki/Fuzzing) 1599 | ## Fuzzing and Eth Security Toolbox 1600 | - [Echidna](https://github.com/crytic/echidna) 1601 | - [Docker Install](https://docs.docker.com/get-docker/) 1602 | - [Eth-Security-ToolBox](https://github.com/trailofbits/eth-security-toolbox) 1603 | ## Closing Thoughts 1604 | - [Best Practices](https://consensys.github.io/smart-contract-best-practices/) 1605 | - [Attacks](https://consensys.github.io/smart-contract-best-practices/known_attacks/) 1606 | - [Oracle Attacks](https://hackernoon.com/how-dollar100m-got-stolen-from-defi-in-2021-price-oracle-manipulation-and-flash-loan-attacks-explained-3n6q33r1) 1607 | - [Re-entrancy Attacks](https://quantstamp.com/blog/what-is-a-re-entrancy-attack) 1608 | - [Damn Vulnerable Defi](https://www.damnvulnerabledefi.xyz/) 1609 | - [Ethernaut](https://ethernaut.openzeppelin.com/) 1610 | - Some Auditors: 1611 | - [OpenZeppelin](https://openzeppelin.com/) 1612 | - [SigmaPrime](https://sigmaprime.io/) 1613 | - [Trail of Bits](https://www.trailofbits.com/) 1614 | 1615 | # Congratulations 1616 | 1617 | 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 Completed The Course! 🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊🎊 1618 | 1619 | ## Where do I go now? 1620 | 1621 | ### Learning More 1622 | 1623 | - [CryptoZombies](https://cryptozombies.io/) 1624 | - [Patrick Collins](https://www.youtube.com/channel/UCn-3f8tw_E1jZvhuHatROwA) 1625 | - [Dapp University](https://www.youtube.com/channel/UCY0xL8V6NzzFcwzHCgB8orQ) 1626 | - [ChainShot](https://www.chainshot.com/courses) 1627 | - [Cami Ramos Garzon](https://twitter.com/camiinthisthang) 1628 | - [Albert Hu](https://twitter.com/thatguyintech) 1629 | - [Ivan Liljeqvist](https://twitter.com/IvanOnTech) 1630 | - [Ally Haire](https://twitter.com/DeveloperAlly) 1631 | - [Stephen Fluin](https://twitter.com/stephenfluin) 1632 | - [Eat the Blocks](https://www.youtube.com/channel/UCZM8XQjNOyG2ElPpEUtNasA) 1633 | - [Austin Griffith](https://www.youtube.com/channel/UC_HI2i2peo1A-STdG22GFsA) 1634 | - [Nader Dabit](https://www.youtube.com/user/boyindasouth) 1635 | - [Ethereum.org](https://ethereum.org/en/) 1636 | 1637 | ### Community 1638 | 1639 | - [Twitter](https://twitter.com/PatrickAlphaC) 1640 | - [Hardhat Discord](https://discord.gg/9zk7snTfWe) 1641 | - [Chainlink Discord](https://discord.gg/2YHSAey) 1642 | - [Ethereum Discord](https://ethereum.org/en/) 1643 | - [Reddit ethdev](https://www.reddit.com/r/ethdev/) 1644 | 1645 | ### Hackathons 1646 | 1647 | - [CL Hackathon](https://chain.link/hackathon) 1648 | - [ETH Global](https://ethglobal.co/) 1649 | - [ETH India](https://twitter.com/ETHIndiaco) 1650 | 1651 | Be sure to check out project grant programs! 1652 | 1653 | And make today an amazing day! 1654 | 1655 | # Thank you 1656 | 1657 | Thanks to everyone who is taking, participating in, and working on this course. It's been a passion project and a data dump of everything I've learnt in the web3 space to get you up to speed quickly. Also, a big thank you to Chainlink Labs for encouraging this course to come to light-and to the many Chainlink Labs team members who helped with various assets! 1658 | 1659 | [![Patrick Collins Twitter](https://img.shields.io/badge/Twitter-1DA1F2?style=for-the-badge&logo=twitter&logoColor=white)](https://twitter.com/PatrickAlphaC) 1660 | [![Patrick Collins YouTube](https://img.shields.io/badge/YouTube-FF0000?style=for-the-badge&logo=youtube&logoColor=white)](https://www.youtube.com/channel/UCn-3f8tw_E1jZvhuHatROwA) 1661 | [![Patrick Collins Linkedin](https://img.shields.io/badge/LinkedIn-0077B5?style=for-the-badge&logo=linkedin&logoColor=white)](https://www.linkedin.com/in/patrickalphac/) 1662 | [![Patrick Collins Medium](https://img.shields.io/badge/Medium-000000?style=for-the-badge&logo=medium&logoColor=white)](https://medium.com/@patrick.collins_58673/) 1663 | 1664 | 1665 | --------------------------------------------------------------------------------