Commit-by-commit breakdown of "Build a Blockchain & Cryptocurrency | Full-Stack Edition"

This is a commit-by-commit breakdown of "Build a Blockchain & Cryptocurrency | Full-Stack Edition". This will help anyone stuck on a particular lecture. Compare your code to the relevant commit here.

References:

• Course link, Build a Blockchain & Cryptocurrency | Full-Stack Edition
• original repository

Commits

• Section 2: Blocks | The Blockchain Backend
• Section 3: The Chain | the Blockchain Backend
• Section 4: Proof of Work | the Blockchain Backend
• Section 5: API and Network | the Blockchain Backend
• Section 6: Wallets, Keys, and Transactions | the Blockchain Backend
• Section 7: Transaction Pool | The Blockchain and Cryptocurrency Backend
• Section 8: Mine Transactions | The Blockchain and Cryptocurrency Backend
• Section 10: The Frontend Blockchain
• Section 11: The Frontend Cryptocurrency
• Section 12: Deploying to Production and Full-Stack Improvements

Section 2: Blocks | The Blockchain Backend

• Set Up the Blockchain Application
• Create the Block Class
• Create the Block Class | TDD Style
• The Genesis Block | Tests
• The Genesis Block | Code
• Mine Blocks
• Crypto Hash and SHA-256
• Hash in MineBlock

Section 3: The Chain | the Blockchain Backend

• The Blockchain Class
• Chain Validation | Tests
• Chain Validation | Code
• Chain Replacement
• Stub Console Output in Tests

Section 4: Proof of Work | the Blockchain Backend

• Difficulty and the Nonce Value | Tests
• Difficulty and the Nonce Value | Code
• Dynamic Difficulty and the Mine Rate
• Adjust the Difficulty in MineBlock
• Improve the Proof of Work System | Average Work Script
• Improve the Proof of Work System | Binary hashes
• Prevent Difficulty Jumps

Section 5: API and Network | the Blockchain Backend

• Setup Express API
• Post Request to Mine a Block
• Redis Publisher/Subscriber Class
• PubNub: a Non-Redis Pub/Sub Alternative
• Broadcast Chain
• Start Peers and Broadcast Chain on API Mine
• Sync Chain on Connect
• Avoid Redundant Interactions

Section 6: Wallets, Keys, and Transactions | the Blockchain Backend

• Code Organization
• Create and Test Wallet Class
• Key Pair and Public Key Addresses
• Sign Data and Verifying Signatures
• Transaction Objects and the Output Map | Tests
• Transaction Objects and the OutputMap | Code
• Transaction Inputs
• Cohesive Utility
• Validate Transaction
• Wallet Create Transaction
• Update Transactions with Multiple Outputs
• Improve the CryptoHash
• Transaction Update Edge Cases

Section 7: Transaction Pool | The Blockchain and Cryptocurrency Backend

• Create the Transaction Pool and Set Transactions
• API Transactions and Main Transaction Pool
• Handle Invalid Transactions
• Transaction Updates in the API
• Broadcast Transaction
• Sync Transaction Pool Map on Connect

Section 8: Mine Transactions | The Blockchain and Cryptocurrency Backend

• Transaction Miner Class
• Grab Valid Transactions
• Reward Transaction
• Clear Blockchain Transactions
• Mine Transactions Endpoint
• Clear Recorded Transactions on Successful Replace
• Calculate the Wallet Balance
• Calculate the Balance before each Transaction
• Wallet Balance from Recent Transaction
• Wallet-Info Request
• Valid Transaction Data | Tests
• Valid Transaction Data | Code
• Validate Input Balances
• Prevent Duplicate Transactions in Block
• Validate Transaction Chain

Section 10: The Frontend Blockchain

• Serve a Frontend Page
• Add JavaScript to the Frontend
• Build React into the Frontend
• Frontend Development Workflow
• App component
• Fetch and Display Wallet-Info
• Visualize the Blocks
• Seed the Backend with Data
• Stylize the Application
• Make a Block Component with Props

Section 11: The Frontend Cryptocurrency

• Toggle Transaction Displays
• Transaction Component
• React Router
• Conduct Transaction Component
• Post Transaction with Component
• Transaction Pool Component
• Poll the Transaction Pool
• Mine a Block of Transactions through the Frontend

Section 12: Deploying to Production and Full-Stack Improvements

• Configure Production Code
• Known Adresses | Backend
• Known Adresses | Frontend
• Blocks Pagination | Backend
• Blocks Pagination | Frontend