My Solidity projects.

• Seller of NFT deploys this contract.
• Auction lasts for 7 days.
• Participants can bid by depositing ETH greater than the current highest bidder.
• All bidders can withdraw their bid if it is not the current highest bid.

• Highest bidder becomes the new owner of NFT.
• The seller receives the highest bid of ETH.

Deployed contract on Rinkeby Etherscan.

Crowd fund ERC20 token

• User creates a campaign with a particular token.
• Users can pledge, transferring their token to a campaign.
• After the campaign ends, campaign creator can claim the funds if total amount pledged is more than the campaign goal.
• Otherwise, campaign did not reach it's goal, users can withdraw their pledge.

Deployed contract on Rinkeby Etherscan.

Dutch auction for NFT

• Auction

• Seller of NFT deploys this contract setting a starting price for the NFT.
• Auction lasts for 7 days.
• Price of NFT decreases over time.
• Participants can buy by depositing ETH greater than the current price computed by the smart contract.
• Auction ends when a buyer buys the NFT.

Deployed contract on Rinkeby Etherscan.

• A simple Rinkeby Ethereum faucet that transfers 0.2 ether to addresses that request for it.
• Ether can be transferred to addresses as long as the interval is 12 hours.
• Faucet funders are recorded and are public.
• Faucet funders can only transfer 1 ether to the faucet.
• On any transfers of more than 1 ether, the balance is sent back to the funder, and 1 ether is taken in by the contract.

Deployed contract on Rinkeby Etherscan.

• An upgradable smart contract project implementing the delegatecall functionality.
• It includes the 3 necessary contracts an upgradable contract should have. [x] Proxy.sol: The contract to interact with the upgradable contract. [x] Store.sol: The contract holding the storage variables. [x] Main.sol: The actual contract that handles the logic. [ ] Admin.sol: Contract with admin roles. This is optional.

Proxy contract on Rinkeby Etherscan.

• ERC-20 Token.

Deployed contract on Rinkeby Etherscan.

• Modified Faucet contract.

• $USDT, a copy of the ERC-20 token on Rinkeby USDT for token testings on development network.

Deployed contract on Rinkeby Etherscan.
Deployed contract on Rinkeby Etherscan.

• A basic contract that works like a phone book. Allowing users to map names to addresses, and retrieving it when needed.

Deployed contract on Rinkeby Etherscan.

• ERC-20 Token.

Deployed contract on Rinkeby Etherscan (1). Deployed contract on Rinkeby Etherscan (2).

• A modified $AGU

• Legio, an ERC-721 NFT project.

Deployed contract on Rinkeby Etherscan (1).
Deployed contract on Rinkeby Etherscan (2).
Deployed contract on Rinkeby Etherscan (3).

• EtherWallet, a crowdfunding smart contract.
• This is a simple Solidity program that allows anyone to send ether to a wallet then allowing only the owner to withdraw.
• This was my FIRST Solidity Smart Contract task, and I am so proud of it ❤🕊.

Deployed contract on Rinkeby Etherscan.

• A contract that communicates between a mapping and an array stored on the contract.

Deployed contract on Rinkeby Etherscan.

• A bunch of libraries I wrote for math, experimenting.

• Uniswap's liquidity contracts I studied.

• A contract that calculates the merkle tree from an array of transactions made with the contract.
• Hint: I bugged this contract 😉.

Deployed contract on Rinkeby Etherscan.

• A contract that approves pending transactions made on the contract on the condition that ((1/2) + 1) of the users of the contract has approved it.

Deployed contract on Rinkeby Etherscan.

A demo practise about signing and verifying signed transactions with Solidity.

Simple storage and retrieval with Solidity.

Practical contract applying the create 2 functionality to pre-calculate the deploy address of a particular contract with its constructor parameters and salt.