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Dapp 30
Introduction
What this course will teach you?
Who is this course for?
How to use this course? (IMPORTANT!)
Supported operating systems
Installation of required tools & libraries
Support & Resources
Day 1 - Simple smart contract
Smart contract (13:45)
Tests (10:54)
Frontend (25:15)
Day 2 - Hello World
Smart contract (10:06)
Tests (5:03)
Frontend (11:30)
Day 3 - Simple storage
Smart contract - part I (11:58)
Smart contract - part II (5:54)
Tests (3:34)
Frontend (18:37)
Day 4 - Advanced storage
Smart contract (10:32)
Tests (12:16)
Frontend (39:36)
Day 5 - Crud
Smart contract - part I (9:11)
Smart contract - part II (4:52)
Smart contract - part III (4:36)
Smart contract - part IV (6:02)
Tests (15:51)
Frontend (59:45)
Day 6 - Ether Wallet
Smart contract - part I (4:18)
Smart contract - part II (5:54)
Smart contract - part III (6:46)
Tests (22:49)
Frontend
Day 7 - Split payment
Smart contract - part I (5:33)
Smart contract - part II (7:00)
Tests (15:21)
Frontend
Day 8: Deed
Smart contract (11:38)
Tests (11:39)
Frontend
Day 9: Deed multi-payouts
Smart contract - part I (4:29)
Smart contract - part II (4:10)
Smart contract - part III (6:15)
Smart contract - part IV (6:22)
Tests (11:45)
Frontend
Day 10: Escrow
Smart contract - part I (1:26)
Smart contract - part II (10:16)
Smart contract - part III (5:23)
Smart contract - part IV (5:15)
Tests (13:40)
Frontend (15:27)
Day 11: String manipulation
Smart contract (10:28)
Tests (2:57)
Frontend (13:02)
Day 12: Fibonacci
Smart contract (7:27)
Tests (2:08)
Frontend (0:40)
Day 13: Multisig wallet
Smart contract - part I (2:18)
Smart contract - part II (7:37)
Smart contract - part III (14:06)
Tests (12:39)
Frontend (21:33)
Day 14: Voting
Smart contract - part I (6:06)
Smart contract - part II (8:59)
Smart contract - part III (12:29)
Tests (16:19)
Frontend (32:03)
Day 15: DAO
Smart contract - part I (3:10)
Smart contract - part II (10:56)
Smart contract - part III (10:34)
Smart contract - part IV (14:50)
Smart contract - part V (16:52)
Tests (23:21)
Frontend (0:31)
Day 16: Loan state machine
Smart contract - part I (13:14)
Smart contract - part II (12:18)
Tests (0:35)
Frontend (0:49)
Day 17: Event organization
Smart contract - part I (14:46)
Smart contract - part II (9:07)
Tests (0:34)
Frontend (0:35)
Day 18: Lottery
Smart contract - part I (10:52)
Smart contract - part II (20:59)
Tests (1:26)
Frontend (1:21)
Day 19: Fomo3D
Smart contract - part I (15:07)
Smart contract - part II (16:08)
Tests (Unpublished)
Frontend (Unpublished)
Day 20: Rock paper scissors
Smart contract - part I (12:21)
Smart contract - part II (13:26)
Smart contract - part III (15:46)
Tests (0:36)
Frontend (2:11)
Day 21: ERC20 token
Smart contract (28:23)
Tests
Frontend (21:56)
Day 22: ICO
Smart contract (40:00)
Tests
Frontend (16:17)
Day 23: ERC721 token
Smart contract - part I (16:35)
Smart contract - part II (52:24)
Tests
Frontend (1:45)
Day 24: Crypto-kitties game
Smart contract (37:59)
Tests
Frontend (14:10)
Day 25: Twitter
Smart contract (42:02)
Tests
Frontend (Unpublished)
Day 26: Ebay
Smart contract (42:02)
Tests
Frontend (Unpublished)
Day 27: Tinder
Smart contract (44:52)
Tests (Unpublished)
Frontend (Unpublished)
Day 28: Arbitrage trading with Dex + Oracle Pattern
Smart contract (45:40)
Tests (Unpublished)
Frontend (Unpublished)
Day 29: Assembly
Smart contract - Beginner (25:44)
Smart contract - Advanced (12:35)
Day 30: Decentralized Exchange for ERC20 (Beta)
Introduction
Architecture of Decentralized Exchanges
Specifications of our Decentralized Exchange
Tech stack we will use
Smart contract - 1 - Token registry (4:01)
Smart contract - 2 - Wallet (6:57)
Smart contract - 3 - Integration with Dai (3:49)
Smart contract - 4 - ERC20 tokens Mocks (1:46)
Smart contract - 5 - Limit orders & orderbook (12:52)
Smart contract - 6 - Market orders & order matching algorithm (17:12)
Smart contract - 7 - Prevent integer overflow bug (8:13)
Smart contract - 8 - List orders
Smart contract - 9 - List tokens
Tests - 1 - Wallet
Tests - 2 - Limit orders
Tests - 3 - Market orders
Potential improvements & edge cases
Bonus 1: DeFi (Decentralized Finance) Programming
NOTE
Introduction to DeFi (12:07)
Building Blocks of DeFi (10:45)
Dai (28:28)
Uniswap (20:32)
Compound (29:02)
Gnosis (36:06)
Bonus 2: Smart contract security
1. Overflow / underflow - problem (7:23)
2. Overflow / underflow - solution (6:40)
3. Default function visibility - problem (3:35)
4. Default function visibility - solution (3:27)
5. Front-running - problem (5:52)
6. Front-running - solution (4:20)
7. Re-entrancy attack - problem (4:10)
8. Re-entrancy attack - solution (3:28)
Bonus 3: Smart contract debugging
1. Debugging Calls vs Transactions (1:42)
2. Syntax, runtime and logic errors (7:14)
3. Debugging with syntax highlighting (10:00)
4. Types of runtime errors (2:59)
5. Debugging out of gas errors (6:55)
6. Debugging revert and not-an-opcode errors (7:23)
7. Inspect storage with calls and returns (5:48)
8. Debugging with require revert (8:36)
9. Debugging with events (9:30)
10. Debugging with remix debugger (10:28)
11. Debugging with remix debugger advanced (7:55)
Bonus 4: Drizzle
Note
Introduction to Drizzle (48:07)
Advanced Drizzle (47:39)
Bonus 5: Find your first Blockchain Job
NOTE
Job boards for Blockchain jobs
Solidity Interview Preparation - Easy questions (15:50)
Solidity Interview Preparation - Intermediate questions (17:19)
Solidity Interview Preparation - Difficult questions (8:14)
Smart contract - part I
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