Solidity, Blockchain, and Smart Contract Course – Beginner to Expert Python Tutorial

This course will give you a full introduction into all of the core concepts in blockchain, smart contracts, solidity, NFTs/ERC721s, ERC20s, Coding Decentralized Finance (DeFi), python and solidity, Chainlink, Ethereum, upgradable smart contracts, and full stack blockchain development.

Follow along with the videos and you'll be a blockchain wizard in no time!

Please reference the repo for anything you need, and feel free to leave issues, jump into the discussions, and more.

⭐️ Course Contents ⭐
⌨️ (00:00:00) Introduction
⌨️ (00:06:33) Lesson 0: Welcome To Blockchain
⌨️ (01:31:00) Lesson 1: Welcome to Remix! Simple Storage
⌨️ (02:09:32) Lesson 2: Storage Factory
⌨️ (02:26:35) Lesson 3: Fund Me
⌨️ (04:27:55) Lesson 5: Brownie Simple Storage
⌨️ (05:06:34) Lesson 6: Brownie Fund Me
⌨️ (06:11:38) Lesson 7: SmartContract Lottery
⌨️ (08:21:02) Lesson 8: Chainlink Mix
⌨️ (08:23:25) Lesson 9: ERC20s, EIPs, and Token Standards
⌨️ (08:34:53) Lesson 10: Defi & Aave
⌨️ (09:50:20) Lesson 11: NFTs
⌨️ (11:49:15) Lesson 12: Upgrades
⌨️ (12:48:06) Lesson 13: Full Stack Defi
⌨️ (16:14:16) Closing and Summary

Follow Patrick!

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🎉 Thanks to our Champion and Sponsor supporters:
👾 Wong Voon jinq
👾 hexploitation
👾 Katia Moran
👾 BlckPhantom
👾 Nick Raker
👾 Otis Morgan
👾 DeezMaster
👾 AppWrite

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[PatrickAlphaC]

Good luck everyone! Hope to see you in the community!

[skarthi]

00:00:00 - *Introduction*
00:00:51 - Author
00:02:04 - prerequisites
00:03:00 - Resources
00:03:57 - learn at your own Pace
00:05:00 - Community
00:05:58 - *Blockchain*
00:06:25 - Bitcoin
00:07:27 - Ethereum
00:08:14 - Smart Contracts
00:09:07 - Bitcoin vs Ethereum
00:09:43 - Oracle problem & Solution
00:10:28 - Hybrid Smart Contracts
00:11:01 - Chainlink
00:12:47 - Importance of Ethereum
00:13:33 - Chainlink features
00:13:50 - summary
00:15:04 -*Features & Advantages of Smart contracts and Blockchain*
00:15:15 - Decentralized
00:16:55 - Transparency & Flexibility
00:17:35 - Speed & Efficiency
00:18:11 - Security & Immutability
00:19:34 - Removal of Counterparty risks
00:21:13 - Trust Minimized Agreements
00:23:21 - Summary
00:24:46 -*DAOs*
00:25:15 -*Ethereum Transaction On a Live Blockchain*
00:25:57 - Wallet Creation
00:29:30 - Etherscan
00:30:03 - Multiple Accounts
00:30:28 - Mnemonic, Public & Private keys
00:31:34 - Mnemonic vs Private vs Public keys
00:32:02 - Mainnet & Testnets
00:33:39 - Initiating our first Transaction
00:35:55 - Transaction details
00:36:50 - Gas fees, Transaction fees, Gas limit, Gas price ....
00:39:36 - Gas vs Gas price vs Gas Limit vs Transaction fee
00:40:40 - Gas estimator
00:43:46 -*How Blockchain works/whats going on Inside the Blockchain*
00:44:26 - Hash or Hashing or SHA256
00:46:35 - Block
00:49:37 - Blockchain
00:53:18 - Decentralized/Distributed Blockchain
00:57:19 - Tokens/Transaction History
00:59:55 - Recap/summary
01:01:34 -*Signing and Verifying a Transaction*
01:01:45 - Public & Private Keys
01:03:29 - Signatures
01:05:05 - Transactions
01:07:39 - Recap/summary
01:09:00 -*Concepts are same*
01:10:03 - Nodes
01:10:40 - Anyone can Become a Node
01:11:02 - Centralized entity vs Decentralized Blockchain
01:11:55 - Transactions are Listed
01:12:27 - Consensus, Proof of Work, Proof of Stake
01:12:35 - Consensus
01:13:21 - proof of work/Sybil resistance mechanism
01:14:56 - Blocktime
01:15:32 - Chain selection rule
01:15:50 - Nakamoto consensus
01:16:15 - Block Confirmations
01:17:00 - Block rewards & transaction fees
01:19:34 - Sybil attack
01:19:52 - 51% attack
01:21:41 - Drawbacks of pow
01:21:53 - proof of stake/sybil resistance mechanism
01:23:14 - Validators
01:24:27 - pros & cons of pos
01:25:27 - Scalability problem & Sharding solution
01:26:40 - Layer 1 & Layer 2
01:27:22 - Rollups
01:28:15 - Recap/Summary
01:29:28 -*Solidity*
01:30:47 - *Lesson 1 - Remix IDE & its features*
01:33:32 - Solidity version
01:35:29 - Defining a Contract
01:36:08 - Variable types & Declaration
01:38:45 - Solidity Documentation
01:39:01 - Initializing
01:39:55 - Functions or methods
01:40:54 - Deploying a Contract
01:42:05 - Public, Internal, private, External Visibility
01:44:54 - Modifying a Variable
01:45:49 - Scope
01:47:10 - View functions
01:48:51 - Pure function
01:50:57 - Structs
01:52:42 - Intro to storage
01:53:22 - Arrays
01:54:27 - Dynamic array
01:54:41 - Fixed array
01:54:54 - Adding to an array
01:56:12 - Compiler Errors
01:57:27 - Memory Keyword
01:57:48 - Storage keyword
01:59:44 - Mappings Datastructure
02:01:53 - SPDX license
02:02:37 - Deploying to a live network
02:06:16 - Interacting with deployed contracts
02:07:35 - EVM
02:08:13 - 💪🏻
02:08:31 - Recap/summary
02:09:20 - *Lesson 2 - StorageFactory*
02:09:44 - Factory pattern
02:10:21 - New contract StorageFactory
02:11:36 - Import 1 contract into another
02:13:01 - Deploy a Contract from a Contract
02:14:43 - Track simple storage contracts
02:16:34 - Interacting with Contract deployed Contract
02:16:43 - Calling Store & Retrieve Functions from SF
02:17:43 - Address & ABI
02:19:15 - Compiling & storing in SS through SF
02:20:00 - Adding Retrieve Function
02:21:50 - Compiling
02:22:27 - Making the Code lil bit Simpler
02:23:32 - Additional Note
02:23:58 - Inheritance
02:25:53 - Recap
02:26:23 - *Lesson 3 - Fund me*
02:27:12 - purpose of this contract
02:27:21 - Payable function, wei, gwei & ether
02:28:30 - Mapping, msg. sender, msg.value
02:30:23 - Funding
02:31:48 - ETH -> USD /conversion
02:32:38 - Deterministic problem & Oracle solution
02:34:15 - Centralized Oracles
02:34:52 - Decentralized Oracle Networks
02:35:23 - Chainlink Datafeeds
02:36:50 - Chainlink Code documentation on ETH/USD
02:40:17 - Importing Datafeed code from Chainlink NPM package
02:41:31 - Interfaces
02:42:55 - ABI/Application Binary Interface
02:43:43 - Interacting with an Interface Contract
02:45:06 - Finding the Pricefeed Address
02:46:13 - Deploying
02:47:58 - Getprice function
02:48:29 - Tuples
02:49:57 - Typecasting
02:50:30 - deploying
02:51:46 - Clearing unused Tuple Variables & Deploying
02:52:53 - Making the contract look Clean
02:53:50 - Wei/Gwei Standard (Matching Units)
02:54:45 - getting the price using Get conversion rate
02:57:32 - deploying
02:58:29 - Safemath & Integer Overflow
03:02:35 - Libraries
03:03:30 - Setting Threshold
03:04:26 - Require statement
03:05:18 - Revert
03:06:05 - Deplying & Transaction
03:08:26 - Withdraw Function
03:09:09 - Transfer, Balance, This
03:10:21 - Deploying
03:11:08 - Owner, Constructor Function
03:13:17 - Deploying
03:15:51 - Modifiers
03:17:42 - Deploying
03:18:05 - Resetting the Funders Balances to Zero
03:19:37 - For loop
03:21:39 - Summary
03:22:27 - Deploying & Transaction
03:25:00 - Forcing a Trasacttion
03:26:35-*Python*
03:26:35 -*Lesson 4 - Web3. py SimpleStorage*
03:27:06 - Limitations of Remix
03:28:10 - VScode, Python, Solidity Setup
03:30:31 - VScode features
03:30:58 - Testing python install & Troubleshooting
03:32:32 - Creating a new folder
03:32:59 - SimpleStorage. sol
03:34:40 - Remember to save
03:35:26 - VScode Solidity Settings
03:36:57 - Python Formatter & settings
03:37:56 - Author's recommended Settings
03:38:09 - working with python
03:38:51 - Reading our solidity file in python
03:40:19 - Running in Python
03:40:40 - Keyboard Shortcuts
03:40:56 - Py-Solc-x
03:41:43 - Importing solcx
03:42:01 - Compiled_sol
03:42:51 - Bracket pair colorized
03:43:56 - pysolcx documentation
03:44:25 - Printing Compiled_sol
03:44:47 - Comparison wih remix (Lowlevelstuffs, ABI)
03:46:29 - Saving Compiled Code/writing
03:46:56 - import Json
03:47:32 - Json formatting/settings
03:48:28 - Deploying in Python (Bytecode, ABI)
03:50:54 - Which Blockchain/Where to deploy
03:51:25 - Ganache Chain
03:52:27 - Ganache UI
03:53:27 - Introduction to Web3. py
03:53:32 - pip install web3
03:53:40 - import web3
03:53:52 - Http/Rpc provider
03:54:23 - Connecting to Ganache(RPC server, Documentation, Chain ID, address, Privatekey)
03:56:14 - Deploy to Ganache
03:57:03 - Building a Transaction
03:57:22 - Nonce
03:58:14 - Getting Nonce
03:59:00 - Create a Transaction
03:59:42 - Transaction Parameters
04:00:55 - Signing Our Transaction(signed_txn)
04:01:52 - Never Hardcode your Private keys
04:02:09 - Environment Variables
04:02:27 - Setting Environment variables
04:03:00 - Limitations of Exporting Environment Variables
04:03:27 - Private key PSA
04:03:53 - Accessing Environment Variables
04:04:20 - .env file, .gitignore, pip install python-dotenv
04:05:49 - load_dotenv()
04:07:03 - Sending the signed Transaction
04:07:47 - Deployment
04:08:31 - Block
04:09:05 - interact/work with thee contract
04:09:27 - Address & ABI
04:10:28 - Retrieve(), Call & Transact
04:12:38 - Store function
04:13:58 - Creating
04:15:14 - Signing
04:15:42 - Sending Transaction(send_store_tx, tx_receipt)
04:16:47 - Deployment
04:17:42 - some nice syntax & deployment
04:18:48 - ganache-cli
04:19:10 - install Nodejs
04:19:40 - install yarn
04:20:38 - Run ganache cli, ganache documentation
04:21:44 - update privatekeys, addresses, http provider
04:22:13 - open new terminal & deploy
04:23:00 - deploy to testnet/mainnet
04:23:55 - Infura, Alchemy
04:24:34 - Create project
04:25:05 - update the rinkeby url, Chain id, address & private key
04:26:20 - Deploying
04:27:21 - summary/recap
04:27:40 -*Lesson 5 - Brownie Simple Storage*
04:27:53 - Brownie Intro & Features
04:28:44 - create new directory
04:29:39 - install Brownie
04:30:41 - 1st brownie simplestorage project
04:31:08 - Brownie Folders
04:32:25 - copying simplestorage.sol
04:32:44 - brownie compile & store
04:33:22 - brownie deploy
04:33:44 - brownie commands
04:34:22 - brownie runscripts/deploy. py & default brownie network
04:35:10 - brownie Advantages over web3. py in deploying
04:35:38 - getting address & private key using Accounts package
04:36:00 - add default ganache account using index
04:36:58 - add accounts using Commandline
04:37:50 - remove accounts & terminal tips
04:38:17 - getting freecodecamp-account
04:39:15 - add accounts using env variables
04:40:01 - create .env file, brownie-config. yaml
04:40:51 - getting . env
04:41:17 - adding wallets in yaml file and updating in account
04:42:47 - importing contract simplestorage
04:43:09 - importing & deploying in brownie vs web3. py
04:44:27 - running
04:44:46 - recreating web3 .py script in brownie
04:46:20 - running
04:46:48 - tests
04:47:43 - test SS

[laurabacinich]

*Finally someone who is willing to teach us younger guys instead of pushing some bs course on us. Appreciate it*

[sougatanayak]

*There are so many ways to get something like this done, what’s really important is finding the right person for it, I hope everyone reading this in the future becomes successful*

[davidgaines]

*I am extremely glad I was able to join in when I did, basically the best decision I ever made this year, never been so happy*

[angelabellagill]

*As a computer programmer for the last 10 years, i'm certain that we'll look back at Ethereum as the start of something truly revolutionary. The blockchain and decentralized applications are only beginning to be recognized for the benefits they offer.*

[jamesmurphy]

Successful people don't become that way overnight. What most people see at a glance- wealth, a great career, purpose-is the result of hard work and hustle over time. I pray that anyone who reads this will be successful in life..

[aldobladimirrodriguezgalle]

Couldn't agree more with the sentiment here. Clarity is key, and Forbidden Crypto Hacks book seems to provide just that. Can't wait to dive in!

[vhphan]

6 hours into this...and I must say I've learned more from this than any other free/paid courses I've taken.
One thing though, huge numbers like can be written as 20_000_000_000 in python to improve readability. 😃

[monalinde]

INVESTING IN CRYPTOCURRENCY NOW IS VERY COOL EXPECIALLY WITH THE CURRENT RISE IN THE MARKET, AT NOW.

[Sonjastojkova]

*I urge everyone to start somewhere now no matter how small, this is literally the time for that, forget material things, don’t get tempted*

[MikeChristian-wzvc]

im in the medical field and you can ask me anything medical and id break it down for you. Crypto, however, is a different monster on its own and ive been watching videos for the past year now to increase my knowledge. I love other youtubers like Coin Burea, Invest Answers and so on but i gotta say, you take the cake in explaining in laymans terms. You are much appreciated! Please continue to make these simplified videos for dummies in this space such as myself! and *FutureimperativeCorps* is always a good option for beginner and pro investors.

[johnpatrick]

STARTING EARLY IS THE BEST WAY OF GETTING AHEAD TO BUILD WEALTH, INVESTING REMAINS A PRIORITY. THE STOCK MARKET HAS PLENTY OF OPPORTUNITIES TO EARN A DECENT PAYOUTS, WITH THE RIGHT SKILLS AND PROPER UNDERSTANDING OF THE MARKET WORKS.

[DatriellHarris]

The regular lending rates on FTX are quite good compared to most banks, but they fluctuate by the hour (and also intra-hour, but you're generally not paid for that). Meanwhile staking is a set yearly amount that seldom changes, but then you have to find a good entry and bare the risk that entails. On the other hand, I consider the opportunity cost of not owning crypto these days to be much of a much higher risk. That is to say, I think _not _owning crypto is far more risky than owning it, due to various things not limited to stupid fiscal policies and Fed money printing. So the best is owing it, trading and investing with it, I learned that from a crypto expert from *Linux Tech Corps* I've made tons of profits btw

[syllight]

I can't believe that giga chads like you guys give these content for programmers FOR FREE!

[vivekk]

I love this video because he gives real strategies for growth of your holdings during unstable market times or even downward market periods. However his explanation for why crypto is staked is let’s say imperfect. Staking is a replacement and upgrade to traditional mining and less energy intensive. It returns value similar to mining. Without having a server/GPU farm. Proof of stake is the next generation of coin creation and value creation. Bur before then, I've been trading with *Linux Tech Corps* and it's very profitable

[toddarmstrong]

After being in crypto for 5 years i'm finally teaching myself solidity. what great timing this course was.

[smokey]

At 3:44:35:
He forgot to install the solidity compiler first! You can do so with:

from solcx import compile_standard, install_solc

install_solc("0.6.0")

... in the deploy.py file. He corrected it on the github page. In case you got stuck here like me :)

[InJesterr]

For the best teacher on earth, I don't have a single collage degree just but I always knew that I had to find the right person to teach me stuff.
For me that was you Patrick <3

[angelabellagill]

I started to look into NFTs to build more my knowledge. Your video was simple and very enjoyable to watch so thank you for publishing this content. I personally think this revolutionary way of buying /selling art or actually anything that can be classified as a virtual asset will need to be watched very closely. The sector is still widely unregulated and those activities can conceal massive risks of money laundering and financial crime at many levels. There was no case of money laundering or any suspicious activities when I made the decision to join *Linux Tech Corps*