Prince Barney | Blockchain Engineer ⚙️

Lost in blockchain,but loving every minute of it😊

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@barn35098 @CyfrinUpdraft Thanks🙂

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🦖
✅Day 140 Mastering Blockchain💯

Spent few hours updating obsolete drivers but progress is progress🙂

Built Price Feed Handler: BarneyStableCoin
Lesson:
Handlers need flexibility to explore more protocol states & uncover hidden bugs

Reviewed:
.Tx type 1(0x0)-EIP 2929 & 2930

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@barn35098 @CyfrinUpdraft Thank you mate!!

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@barn35098 True💯

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

✅Day 139 Mastering Blockchain🔥
Learned ghost variables in Foundry invariant tests
-Great for spotting hidden bugs.

Also found out depth in foundry.toml controls call execution limits.
Wi-Fi fought me today, but still showed up ⚒️

Still pushing 😮‍💨
#Web3 #Solidity

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

Chainlink Data Streams:
•off-Chain aggregation -> Data Decentralized Oracle Networks (DONs).
•DON-signed reports sent to Data Streams Aggregator Networks.(off-Chain).
•on-chain verification before consumption by Chainlink Verifier Contract.

Makes Financial tools work better💪

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🐳
✅ Day 138 of Mastering Blockchain 💯
Worked on invariant test handlers for my BarneyStableCoin:
-redeemCollateral handler
-mintBSC handler

Big lesson:
Always prank external calls in handlers. Miss it, and tests fail for reasons that aren't immediately obvious.

Thread🧵👇

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🙂

Still building.

Today was light—mostly reviewing my BarneyStableCoin code and regaining momentum after a few off days.

Not every day is heavy development. Some days are just reset + clarity.

Back tomorrow with deeper work.

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@rosarioborgesi @Uniswap This is great mate! 🙂

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@timsilva112 That's great man! Keep moving. You're doing it right

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@CcAkachi You can follow up the progress on GitHub link below. I updated it frequently. Honestly follow me I'll follow back.
https://t.co/BTzrDe9p6m

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🐉
✅Day 135 Mastering Blockchain💯
Built the liquidation logic for my BarneyStableCoin protocol.

Had to refactor collateral redemption into layered internal/public functions to support liquidation flow correctly

Big lesson today:
stablecoins survive on collateral health

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@TammyBuilds @chainlink @CyfrinUpdraft @solidity_lang Yes I concur with you 💯And that's how to morph into a gigachad dev successfully 🙂

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🦖
✅Day 131 Mastering Blockchain💯

BarneyStableCoin(BSC):
-DeployBSC & HelperConfig for the coin
-used ERC20Mocks for Anvil config
-Learnt that privatekeys are just uint256 types

Chainlink Functions:
-Built structure for designing Functions consumer contracts
-test quiz done💪

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@CcAkachi @CyfrinUpdraft 😂thanks mate 😁

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🐍
✅Day 136 Mastering Blockchain💯
Unit tests for BarneyStableCoin engine DONE!

Revisited signature mechanics:
•r, s, v components
•vm.sign in Foundry tests
cast wallet sign for signing messages

Reviewed how airdrops use signatures + incentives to drive protocol adoption

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@vanebuilds_ Keep going 💪 you're doing it right mate! 💪

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@vanebuilds_ I show up even when I don't feel it. If I slip I practice humility to myself 🙂and reset

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🦎
✅Day 137 Mastering Blockchain💯
Learned the difference between:
•Stateless fuzzing
•Stateful fuzzing(invariant tests)

Chainlink Data Streams:
•DONs aggregate data off-chain
•cheaper + faster retrieval
•optimized for high-frequency markets

Airdrop contract review DONE💪

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@CcAkachi Yees😆the way it should be 💯

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

@vanebuilds_ @CyfrinUpdraft @solidity_lang Thanks aton😃

[Prince Barney | Blockchain Engineer ⚙️ @BarneyChainDev]

🐢
Day 134 Mastering Blockchain💯
BarneyStableCoin logic:
•burnBSC
•redeemCollateral(tricky)
•redeemBSCForCollateral(still refactoring flow)

nascentxyz audit repo review→audit-ready contracts readiness(devs)

Chainlink VRF:
•rollDice randomness contract
.Nailed VRF quiz✅