SafeSend DApp

• Author: Harsh Agrawal & Venky Kumar

• GitHub: harshagrawal2503

• GitHub: BoddepallyVenkatesh06

Description:

The SafeSend contract facilitates secure and authenticated transfers of Ether, Efrogs NFTs, and $CROAK Meme Tokens between parties. It integrates additional authentication measures to prevent the loss of funds due to mistyped wallet addresses.

Features:

• Secure transfer of Ether with claim and reclaim functionalities.
• Secure transfer of Efrogs NFTs with claim and reclaim functionalities.
• Secure transfer of $CROAK tokens with claim and reclaim functionalities.

Progress: In June, I dedicated significant effort to developing the SafeSend DApp. During this period:

• Built the User Interface (UI) to interact with the smart contract.
• Conducted extensive research on security best practices.
• Secured the smart contract by integrating robust methods from the OpenZeppelin library.

Smart Contract Deployment:

• The smart contract is deployed on the Sepolia Linea network.
• Contract address: 0x8c2af51e53238532ef3024a2981baab24cf5e50e

Live Demo:

• Test the application at: Live Demo

Technologies and Tools Used:

• Remix IDE: Used for developing and deploying the smart contract.
• OpenZeppelin: Utilized for securing the smart contract with standard libraries.
• React: A JavaScript library for building user interfaces.
• JavaScript: The primary programming language for front-end development.
• thirdweb SDK: Simplifies wallet connection and contract interaction.
• ethers.js: A library for interacting with the Ethereum blockchain.
• walletconnect: Enables connecting mobile wallets to the DApp.
• Next.js: A React framework for server-side rendering and generating static websites.

How to Use:

1. Send Ether, NFT, or Tokens: Initiate a transfer using the respective send function.
2. Claim: The designated receiver can claim the transfer using the respective claim function.
3. Claim Back: The sender can reclaim the transfer if it has not been claimed by the receiver.

Security Measures:

• Utilizes OpenZeppelin's ReentrancyGuard to protect against reentrancy attacks.
• Implements comprehensive modifiers to ensure that only the designated sender or receiver can claim or reclaim the transfers.
• Ensures that each transfer must be claimed or reclaimed before a new transfer can be initiated by the same sender.

Getting Started:

1. Clone the repository: git clone https://github.com/BoddepallyVenkatesh06/SafeSend-DApp.git
2. Install dependencies: npm install
3. Navigate 'cd Front-End-UI\simple-dapp-v2'
4. Start the development server: npm run dev

ScreenShot

Contact:

• For any inquiries or support, please contact me.

License:

• Open Source