FUNDME CONTRACT

The FundMe contract is a decentralized crowdfunding platform built using Solidity, integrating Chainlink’s price feed oracles to ensure contributions meet a minimum USD value. This contract enables users to contribute Ether (ETH) while verifying that their contribution is worth at least $5 USD using real-time conversion rates. It also provides functionality for the contract owner to withdraw all funds.

Key Feature

• Chainlink Price Feed Integration:

  Utilizes Chainlink’s decentralized oracles to fetch live ETH/USD conversion rates, ensuring that each contribution is at least $5 USD.

• Contribution Tracking:

  Each contribution is logged, allowing the contract owner to view details of all contributors.

• Secure Fund Withdrawal:

  Only the owner can withdraw the accumulated funds, and the withdrawal process ensures all balances are reset.

  
  
  

Contract Details

• Deployed Address:

   0x1F3e9C6a316A71111949be7E4f892219724e5de2

• Network:

  Sepolia Testnet

• Minimum Contribution:

  $5 USD (in wei)

• Chainlink Price Feed:

  Uses Chainlink oracles to convert ETH to USD.

Libraries and External Integrations

• Chainlink Price Feed:

  The contract integrates Chainlink’s price feed to convert ETH to its USD equivalent.

• PriceConverter Library:

  A custom library that provides conversion functions from ETH to USD using Chainlink’s price feed.

How to Interact with the Contract:

The contract is deployed on the Sepolia testnet, and you can interact with it using the deployed address above. To fund the contract, each contribution must be at least $5 USD worth of ETH (in wei).

Here are the steps to interact:

1. Funding the Contract: (Send at least $5 USD worth of ETH to the contract using the FUND function.)

   This ensures that your contribution meets the minimum requirement, based on live ETH/USD rates provided by Chainlink.

2. Withdrawing Funds: (The contract owner can withdraw all funds by calling the Withdraw function.)

   After the withdrawal, all contributor records are reset.

Deployment

• Sepolia Network:

  The contract has been deployed on the Sepolia testnet. If you'd like to interact with the contract or test it, use the following deployed contract address:

• Deployed Contract Address:

 0x1F3e9C6a316A71111949be7E4f892219724e5de2

Clone and Contribute

<P>If you'd like to contribute or explore the contract further, follow these steps:</P>

• Clone the Repository:

 git clone https://github.com/Davidexdev2023/FundMe-contract.git

Install Dependencies:

Make sure you have Foundry installed for local testing.

• Install required dependencies:

    forge install

• Deploy the Contract:

  To deploy the contract on a local network or a testnet, you'll need to specify the Chainlink price feed address for your network.

 fundMe = new FundMe("0xYourChainlinkPriceFeedAddress");

• Run Tests:

  The contract includes unit tests to validate its functionality. Run the following command to execute all tests:

    forge test