Shravanth Gowda (@codenegatives) 's Twitter Profile
Shravanth Gowda

@codenegatives

Passionate about coding, crypto, and creating cool stuff.

ID: 1738240146464739328

calendar_today22-12-2023 16:49:01

13 Tweet

3 Followers

252 Following

Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

Day 1 – #ContractConquerorChallenge Kicked off my smart contract journey by building a custom #ERC20 token in #Solidity from scratch no OpenZeppelin! ✅transfer, approve, transferFrom ✅ balances & allowances logic ✅ Events: Transfer, Approval #Web3 #CryptoDev #BuildInPublic

Day 1 – #ContractConquerorChallenge

Kicked off my smart contract journey by building a custom #ERC20 token in #Solidity from scratch no OpenZeppelin!

✅transfer, approve, transferFrom
✅ balances & allowances logic
✅ Events: Transfer, Approval

#Web3 #CryptoDev #BuildInPublic
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

✅ Day 2 of #ContractConquerorChallenge Built advanced ERC20 features from scratch: 🪙 Mintable 🔥 Burnable ⏸ Pausable 🎯 Capped ⏳ Timelock 🔐 Custom Access Control (onlyOwner) All in Solidity, no OpenZeppelin. 📸 Attached: Working contract & tx logs #Web3 #Solidity #CryptoDev

✅ Day 2 of #ContractConquerorChallenge
Built advanced ERC20 features from scratch:
🪙 Mintable
🔥 Burnable
⏸ Pausable
🎯 Capped
⏳ Timelock
🔐 Custom Access Control (onlyOwner)

All in Solidity, no OpenZeppelin.
📸 Attached: Working contract & tx logs
#Web3 #Solidity #CryptoDev
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

Day 3 of #ConquerorChallenge Built a full ERC20 token using OpenZeppelin — secure & gas-optimized! Features: Minting (Capped) 🔥 Burning ⏸ Pausable 👑 Ownership ⏳ Custom Timelock ⚡ Gas Optimized 🛡 OpenZeppelin Safe #Solidity #Web3 #CryptoDev #ERC20 #OpenZeppelin

Day 3 of #ConquerorChallenge
Built a full ERC20 token using OpenZeppelin — secure & gas-optimized!

Features:
Minting (Capped)
🔥 Burning
⏸ Pausable
👑 Ownership
⏳ Custom Timelock
⚡ Gas Optimized
🛡 OpenZeppelin Safe
#Solidity #Web3 #CryptoDev #ERC20 #OpenZeppelin
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

Day 4 of #ConquerorChallenge Built ERC721 NFT contract from scratch (no OpenZeppelin) 🛠️Features: name, symbol, owners, balances, tokenApprovals, mint, transferFrom, approve #Solidity #NFTs #ERC721 #Web3Dev #CryptoDev #SmartContracts #BuildInPublic #LearningInPublic #Ethereum

Day 4 of #ConquerorChallenge
Built ERC721 NFT contract from scratch (no OpenZeppelin) 

🛠️Features:
name, symbol,
owners, balances,
tokenApprovals,
mint,
transferFrom,
approve

#Solidity #NFTs #ERC721 #Web3Dev #CryptoDev #SmartContracts #BuildInPublic #LearningInPublic #Ethereum
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

Day 5 of #ConquerorChallenge Built custom ERC721 features (no OpenZeppelin): 🎯 Features: 🖼NFT collection with baseURI Dynamic tokenURI() for metadata safeMint() with reentrancy + zero address checks #Solidity #ERC721 #NFTDev #Web3 #CryptoDev #BuildInPublic #SmartContracts

Day 5 of #ConquerorChallenge
Built custom ERC721 features (no OpenZeppelin):

🎯 Features:
🖼NFT collection with baseURI
 Dynamic tokenURI() for metadata
safeMint() with reentrancy + zero address checks

#Solidity #ERC721 #NFTDev #Web3 #CryptoDev #BuildInPublic #SmartContracts
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

✅ Day 6 of #ConquerorChallenge Implemented whitelist-based minting in my custom ERC721 NFT contract 🎯 🔒 Only whitelisted addresses can safeMint 🧑‍⚖️ Owner can add/remove addresses #Solidity #NFTs #Web3 #CryptoDev #ERC721 #SmartContracts #BuildInPublic #LearningInPublic #NFTDev

✅ Day 6 of #ConquerorChallenge
Implemented whitelist-based minting in my custom ERC721 NFT contract 🎯

🔒 Only whitelisted addresses can safeMint
🧑‍⚖️ Owner can add/remove addresses

#Solidity #NFTs #Web3 #CryptoDev #ERC721 #SmartContracts #BuildInPublic #LearningInPublic #NFTDev
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

✅ Day 7 – #ConquerorChallenge Built Delayed Metadata Reveal in custom #ERC721 NFT (no OpenZeppelin!) 🔒 Hidden URI → reveal() → Real metadata 🎯 Minting, Whitelist, Dynamic URIs, Reveal #Solidity #NFTDev #Web3 #BuildInPublic

✅ Day 7 – #ConquerorChallenge
Built Delayed Metadata Reveal in custom #ERC721 NFT (no OpenZeppelin!)
🔒 Hidden URI → reveal() → Real metadata
🎯 Minting, Whitelist, Dynamic URIs, Reveal

#Solidity #NFTDev #Web3 #BuildInPublic
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

Day 8 #ConquerorChallenge Built ERC1155 from scratch Why it's better: -Single contract = NFTs + tokens -Batch ops = less gas - Gaming-ready Key parts: - Balance tracking - Safe transfers - Minting - Approvals #Solidity #ERC1155 #ConquerorChallenge #Web3 #BuildInPublic

Day 8 #ConquerorChallenge
Built ERC1155 from scratch 
Why it's better: 
-Single contract = NFTs + tokens 
-Batch ops = less gas 
- Gaming-ready  
Key parts: 
- Balance tracking 
- Safe transfers 
- Minting 
- Approvals
#Solidity #ERC1155 #ConquerorChallenge #Web3 #BuildInPublic
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

Day 9 – #ConquerorChallenge 🧾 Added EIP-2981 royalty support to my custom ERC1155 NFT contract — creators now earn royalties on resale! Built w/ Solidity + Remix IDE ⚙️ Next: Auctions + marketplace integration 🔥 #NFTs #Web3 #SmartContracts #EIP2981

Day 9 – #ConquerorChallenge 🧾  
Added EIP-2981 royalty support to my custom ERC1155 NFT contract — creators now earn royalties on resale!  
Built w/ Solidity + Remix IDE ⚙️  
Next: Auctions + marketplace integration 🔥  

#NFTs #Web3 #SmartContracts #EIP2981
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

🚀 Day 10 #ConquerorChallenge: Built an NFT Auction System from scratch (ERC721 + ERC1155)! 🛠️ Trustless bidding, auto-refunds, secure transfers—all in Solidity via Remix IDE. One step closer to modular marketplace smart contracts 💥 #Web3 #NFTAuction #CryptoDev #DeFiBuilders

🚀 Day 10 #ConquerorChallenge: 
Built an NFT Auction System from scratch (ERC721 + ERC1155)! 
🛠️ Trustless bidding, auto-refunds, secure transfers—all in Solidity via Remix IDE. One step closer to modular marketplace smart contracts 
💥 #Web3 #NFTAuction #CryptoDev #DeFiBuilders
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

✅ Day 11 – #ConquerorChallenge: Built a Simple ERC20 Token Swap contract in #Solidity! 🔁 swapTokens() handles fixed-rate swaps 🧪 Deployed/tested in #RemixIDE — success! Next: dynamic pricing + fees 💡 SmartContracts #Web3 #DeFi #CryptoDev #BuildInPublic

✅ Day 11 – #ConquerorChallenge: Built a Simple ERC20 Token Swap contract in #Solidity!
🔁 swapTokens() handles fixed-rate swaps
🧪 Deployed/tested in #RemixIDE — success!
Next: dynamic pricing + fees 💡
SmartContracts #Web3 #DeFi #CryptoDev #BuildInPublic
Shravanth Gowda (@codenegatives) 's Twitter Profile Photo

✅ Day 12 – #ContractConquerorChallenge Built a full StakingRewards contract! Stake TokenA, earn TokenB 💰 🔒 1hr lock-in 💸 10% early exit penalty 🔁 Auto-compound 📊 Track lifetime stake/rewards Tested in Remix IDE — next: yield farming! #DeFi #Solidity

✅ Day 12 – #ContractConquerorChallenge
Built a full StakingRewards contract! Stake TokenA, earn TokenB 💰
🔒 1hr lock-in
💸 10% early exit penalty
🔁 Auto-compound
📊 Track lifetime stake/rewards
Tested in Remix IDE — next: yield farming! #DeFi #Solidity