Introduction
•Course Goals and Curriculum Overview
•Build a Blockchain with Python in 13 Minutes Lightning Version
•Python Fundamentals
•Section Preview: Python Fundamentals
•Set up Python and other Software Installations (Mac, Linux, and Windows)
•Python Interpreter and Fundamentals
•Strings and Variables
•Functions
•Control Flow: Booleans, Comparison Operators, and If Statements
•Loops: While and For
•Data Structures: Lists, Sets, and Dictionaries
•Overview: Classes and Object-Oriented Programming
•Code: Classes and Object-Oriented Programming
•Section Summary: Python Fundamentals
•Start the Blockchain Application
•Section Preview: Start the Blockchain Application
•The Blockchain and Cryptocurrencies – What, Why, and How
•The Blockchain and Block class
•Course Repository
•Modules and __main_
•Mining Blocks and the Genesis Block
•Update add_block and Static Methods
•The Hashing Algorithm Part 1
•Hashing and SHA-256
•Encoding and Decoding in UTF-8 An Overview
•The Hashing Algorithm Part 2, and Lambda Functions
•Section Summary: Start the Blockchain Application
•Test the Application
•Section Preview: Test the Application
•Virtual Environments, Pip, and Pytest
•Organize the Application into Packages
•Test the Blockchain
•Section Summary: Test the Application
•Proof of work
•Section Preview: Proof of Work
•Proof of Work and the 51% Attack
•Difficulty and the Nonce Value
•Dynamic Difficulty and the Mine Rate
•Test Adjust Difficulty
•Proof of Work System Average Work Script
•Hex to Binary Conversion
•Test hex_to_binary
•Section Summary: Proof of Work
•Preparing the Blockchain for Collaboration
•Section Preview: Preparing the Blockchain for Collaboration
•Chain Validation and Replacement Overview
•Validate a Block
•Test is_valid_block
•Chain Validation
•Chain Replacement
•Section Summary: Preparing the Blockchain for Collaboration
•The Blockchain Network – Flask API and Pub/Sub
•Section Preview: The Blockchain Network
•APIs, HTTP, and Flask Overview
•Set Up Flask
•GET the Blockchain Data
•Respond with the blockchain as JSON
•Mine Block Request
•Real-Time Messaging Network through Pub/Sub
•Set up PubNub
•PubSub Class
•Peer Instances
•Broadcast Blocks
•Add Received Blocks
•Synchronize a Peer on Startup
•Section Summary: The Blockchain Network
•The Cryptocurrency: Wallets, Keys, and Transactions
•Section Preview: The Cryptocurrency
•Wallets, Keys, and Transactions Overview
•Wallets and Cryptography Module
•Sign Data
•Verify Signatures
•Test the Wallet
•Transactions
•Test Transactions
•Transaction Updates
•Test Transaction Updates
•Validate Transactions
•Section Summary: The Cryptocurrency
•Transactions on the Network
•Section Preview: Transactions on the Network
•Download Postman
•Transact Endpoint
•Serialize the Wallet Public Key
•Encode the Signature and a Successful POST Transact
•Transaction Pool: Overview
•Transaction Pool: Code
•Broadcast Transactions
•Transaction Updates in the API and Truthy/Falsy values
•Section Summary: Transactions on the Network
•Connect the Blockchain and Cryptocurrency
•Section Preview: Connect the Blockchain and Cryptocurrency
•Mine Transactions
•Test App Script
•Clear Blockchain Transactions
•Calculate Wallet Balances: Overview
•Calculate Wallet Balances: Code
•Test Calculate Wallet Balance
•Balance Property and Wallet Info Endpoint
•Mining Reward
•Validate Mining Rewards
•Transaction Chain Validations
•Test Transaction Chain Validations
•Check Historic Balances
•Section Summary: Connect the Blockchain and Cryptocurrency
•The Backend Review and Frontend Preview
•From Python to JavaScript
•Section Preview: From Python to JavaScript
•From Python to JavaScript Part 1
•From Python to JavaScript Part 2
•Section Summary: From Python to JavaScript
•Introduction to Web Development, React, and React Hooks
•Section Preview: Introduction to Web Development, React, and React Hooks
•A 7m Introduction to Web Development (and its relationship to React)
•The Core Concepts of React
•Install Node.js and Npx
•Set Up the Application
•UseState
•UseEffect
•The React Runtime and How React Applies Hooks
•UseState Under the Hood
•Section Summary: Introduction to Web Development, React, and React Hooks
•Frontend Blockchain
•Section Preview: Frontend Blockchain
•Wallet Info Display
•Backend Interlude: Cors
•Blockchain Component
•Block Component and Props
•Transaction Component
•Toggle the Transaction Data
•Backend Interlude: Seed the Backend with Data
•Backend Interlude: Blockchain Pagination Endpoints
•Paginated Blockchain in the Frontend
•Section Summary: Frontend Blockchain
•Frontend Cryptocurrency
•Section Preview: Frontend Cryptocurrency
•Conduct Transaction Component
•React Router and History
•Known addresses: Backend and UI
•Transaction Pool: Backend and UI
•Navigate to transaction-pool and Poll Transactions
•Mine Transactions Frontend
•Section Summary: Frontend Cryptocurrency
•Conclusion
•Conclusion and Congratulations
•Bonus Lecture: More Material!
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