Smart Contracts & DApps Build, Ship, Stay Safe
From Solidity basics to real DApp patterns, common risks, and professional testing workflows.
1) Solidity Basics
Understand state, functions, events, errors, and secure patterns (CEI, access control, pull payments). Start with audited libraries.
2) Real-World DApps
Front-end + wallet + RPC + contracts + indexers. Walk through token swaps, NFT mints, escrow crowdfunding, and multisig UX.
3) Smart Contract Risks
Re-entrancy, oracle manipulation, access control pitfalls, MEV. Prevent with CEI, guards, robust pricing, and strict roles.
4) Auditing & Testing
Foundry/Hardhat for unit/integration tests, fuzzing & invariants, Slither static analysis, coverage, and pre-launch audit checklist.
Further Learning
✅ Ready to test yourself? Scroll to the quiz below.
Smart Contracts & DApps Quick Check
Answer 5 random questions each round. No repeats this session.