Learn how to build on Ethereum; the superpowers and the gotchas.
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Watch this quick video as an Intro to Ethereum Development.
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Then use 🏗 Scaffold-ETH 2 to copy/paste each Solidity concept and tinker:
global units, primitives, mappings, structs, modifiers, events
inheritance, sending eth, and payable/fallback functions.
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Watch this getting started playlist to become a power user and eth scripter.
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When you are ready to test your knowledge, Speed Run Ethereum:
Challenge #0
🎟 Simple NFT Example
🎫 Create a simple NFT to learn basics of 🏗 scaffold-eth. You'll use 👷♀️ HardHat to compile and deploy smart contracts. Then, you'll use a template React app full of important Ethereum components and hooks. Finally, you'll deploy an NFT to a public network to share with friends! 🚀
🚩 Challenge 0: 🎟 Simple NFT Example
Challenge #1
🥩 Decentralized Staking App
🦸 A superpower of Ethereum is allowing you, the builder, to create a simple set of rules that an adversarial group of players can use to work together. In this challenge, you create a decentralized application where users can coordinate a group funding effort. The users only have to trust the code.
🚩 Challenge 1: 🥩 Decentralized Staking App
Challenge #2
🏵 Token Vendor
🤖 Smart contracts are kind of like "always on" vending machines that anyone can access. Let's make a decentralized, digital currency (an ERC20 token). Then, let's build an unstoppable vending machine that will buy and sell the currency. We'll learn about the "approve" pattern for ERC20s and how contract to contract interactions work.
🚩 Challenge 2: 🏵 Token Vendor
The BuidlGuidl is a curated group of Ethereum builders creating products, prototypes, and tutorials to enrich the web3 ecosystem. A place to show off your builds and meet other builders. Start crafting your Web3 portfolio by submitting your DEX, Multisig or SVG NFT build.
Challenge #3
🎲 Dice Game
🎰 Randomness is tricky on a public deterministic blockchain. The block hash is the result proof-of-work (for now) and some builders use this as a weak form of randomness. In this challenge you will take advantage of a Dice Game contract by predicting the randomness in order to only roll winning dice!
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🚩 Challenge 3: 🎲 Dice Game
Challenge #4
⚖️ Build a DEX
💵 Build an exchange that swaps ETH to tokens and tokens to ETH. 💰 This is possible because the smart contract holds reserves of both assets and has a price function based on the ratio of the reserves. Liquidity providers are issued a token that represents their share of the reserves and fees...
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🚩 Challenge 4: ⚖️ Build a DEX
Challenge #5
📺 A State Channel Application
🛣️ The Ethereum blockchain has great decentralization & security properties but these properties come at a price: transaction throughput is low, and transactions can be expensive. This makes many traditional web applications infeasible on a blockchain... or does it? State channels look to solve these problems by allowing participants to securely transact off-chain while keeping interaction with Ethereum Mainnet at a minimum.
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🚩 Challenge 5: 📺 A State Channel Application
Challenge #6
👛 Multisig Wallet Challenge
👩👩👧👧 Using a smart contract as a wallet we can secure assets by requiring multiple accounts to "vote" on transactions. The contract will keep track of transactions in an array of structs and owners will confirm or reject each one. Any transaction with enough confirmations can "execute".
👛 Multisig Wallet Challenge
Challenge #7
🎁 SVG NFT 🎫 Building Cohort Challenge
🧙 Tinker around with cutting edge smart contracts that render SVGs in Solidity. 🧫 We quickly discovered that the render function needs to be public... 🤔 This allows NFTs that own other NFTs to render their stash. Just wait until you see an Optimistic Loogie and a Fancy Loogie swimming around in the same Loogie Tank!
🎁 SVG NFT 🎫 Building Cohort Challenge