Joined June 2022
- Tweets 399
- Following 193
- Followers 250
- Likes 1,175
109 Photos and videos
May 8
Big session today. Three things shipped 🧵👇
1. readContract — fetched ERC20 allowance inside handleSubmit using wagmi core (not the hook). Know when to use each. Hook = reactive UI. Core = you control when it fires.
🔥#Web3 #wagmi #BuildInPublic #LearningInPublic @CyfrinUpdraft
ALT My Airdrop file
ALT My unit tests
ALT Difference between readContract & useReadContract
ALT A very clear explanation
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May 8
2. useMemo — runs calculateTotal live as user types amounts. Only re-runs when input changes.
3. 9 unit tests with Vitest — commas ✓ newlines ✓ decimals ✓ empty strings ✓ non-numbers ✓ Why test so thoroughly? Because calculateTotal determines how many tokens go on-chain.
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May 7
Built the airdrop form today with AI
✅ Simple UI? Let AI draft it. Review it. Ship it.
⚠️ Complex logic blockchain?
What I built:
→ Reusable InputField component (AI)
→ AirdropForm with 3 useState hooks (me)
→ tokenAddress recipients amounts — all controlled inputs
ALT A snippet of my code
ALT Input field
ALT Building my frontend to work with the backend
ALT We bomb tomorrow🔥😁
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May 7
Send button exists. Only console.log's for now 😂
Tomorrow: wagmi writeContract. Real transaction. Real chain. 🔥
#Web3 #BuildInPublic #React #AI #LearningInPublic #CyfrinUpdraft
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May 5
Today's Progress:
Wrote zero code today. Spent the whole day on ONE bug.
#Web3 #BuildInPublic #Debugging #NextJS #LearningInPublic @CyfrinUpdraft
ALT I wrote no code
ALT Spent time with a bugg
ALT Fixed the bug and learnt my lesson
ALT Back to building...
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May 3
Added RainbowKit to my Web3 dApp today 🌈
Key lesson: it's not just about the connect button
→ Wrap app in WagmiProvider
→ QueryClientProvider
→ RainbowKitProvider
→ Configure your chains
→ Store your projectId in .env
@CyfrinUpdraft #BuildInPublic #RainbowKit #Web3
ALT My RainbowKit Config
ALT Chain
ALT One wallet, Access everywhere
ALT Wrap everything in the provider
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May 1
In building full-stack web3 projects, most people want to start coding immediately.
Follow along if you're learning Web3. We're just getting started. ⚡
I've learned to read the contract first. Here's why 🧵👇
#Web3 #BuildInPublic #ERC20 @CyfrinUpdraft
ALT The smart contract
ALT My README.md file
ALT Cyfrin Updraft
ALT What I am doing next... It's coming out tomorrow.
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May 1
4/ This is the part they don't tell beginners about Web3 frontend dev — you're not just building UI. You're building a bridge between users and a blockchain.
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May 1
5/ Stack for this project: → Next.js → TypeScript → Tailwind CSS → Wagmi
All set up and ready. Tomorrow we go into the real deal. 👀
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I'm Toby✨ retweeted
Apr 14
Yeppp, this is what I do.
I build websites & mobile applications for businesses — turning ideas into fast, functional, and beautiful digital products.
Got a design? I collaborate with UI/UX designers to bring your vision to life, pixel-perfect, using clean code.
ALT I BUILD WEBSITES AND MOBILE APPLICATIONS
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Apr 30
Web3 dev log — Section 2 done ✅
Highlights from today:
→ Hit a real bug: MetaMask kept connecting to Ethereum instead of my local Anvil chain — no funds, no transactions. Fixed it by switching networks manually and using Anvil's test accounts
#Web3 @CyfrinUpdraft
ALT Sending Transaction..
ALT My Withdrawal function
ALT I completed the Buy Me Coffee Section
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Apr 30
→ Built get balance withdraw functions using viem's PublicClient
→ Fund, getBalance & withdraw all follow the same pattern once it clicks → Migrated the whole project from JS to TypeScript with Vite
Debugging is part of the process.
Section 3 next⚡
#LearningInPublic #Web3
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Apr 28
Web3 dev log 🧵
Today I learned:
→ Always detect the user's chain before sending any transaction
→ Simulate transactions with viem before executing —catch errors before they cost gas
→ Use Anvil as a local blockchain to test your frontend
#Web3 #LearningInPublic #Blockchain
ALT My codes
ALT My dummy anvil account balance
ALT A.
ALT Learning from Cyfrin Updraft
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Apr 24
I built a Web3 app today. The button said "Connected" ✅ MetaMask had no idea I existed 💀
One missing line of JavaScript.
This is what learning blockchain actually looks like 🧵
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Apr 24
I called requestAddresses() to trigger the MetaMask popup.
It worked. I clicked "Connect."
But I never saved what it returned.
So my app knew MetaMask existed... but had zero idea WHICH wallet just connected 🫠
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Apr 24
The broken code:
await walletClient.requestAddresses()
The fixed code:
const [address] = await walletClient.requestAddresses()
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Apr 22
Just finished a project with some amazing teammate, we built a clock-in device (hardware software).
I handled the software, building an interface that communicates directly with an ESP32. First time doing hardware-software integration
A video on the full journey is coming.🔧
ALT The Software home interface
ALT The records tabs
ALT The 3D design
ALT The electronic components
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