Community Payments Smart Contract

Overview

This smart contract, named CommunityPayments, facilitates the collection of payments via cryptocurrency for businesses, enabling seamless transactions among multiple participants. The contract is designed to manage community-specific payments, providing a structured and secure approach for handling financial transactions within a community.

Testing

The smart contract was tested using the Hardhat development environment and Ethers.js library.

run yarn to install the required dependencies.

run yarn hardhat test to run the tests.

Features

Community Creation

• Function: createCommunity
  • Description: Creates a new community and returns its unique identifier.
  • Parameters:
    • _name (string): The name of the community.
    • _receive (address): The address of the payment receiver.
  • Access: Public

Community Payment Creation

• Function: createCommunityPayment
  • Description: Creates a new community payment and returns its unique identifier.
  • Parameters:
    • _communityId (uint256): The identifier of the community.
    • _total (uint256): The total amount of the payment.
  • Access: Public (only accessible by the community owner)

Payment Submission

• Function: makePayment
  • Description: Allows a participant to make a payment to a community payment.
  • Parameters:
    • _communityId (uint256): The identifier of the community.
    • _communityPaymentId (uint256): The identifier of the community payment.
  • Access: Public

Withdrawal of Fees

• Function: withdraw
  • Description: Allows the contract owner to withdraw accumulated fees.
  • Access: Only accessible by the contract owner

Event Logging

The smart contract logs essential actions through events:

• CommunityCreate: Logs the creation of a new community.
• CommunityPaymentCreate: Logs the creation of a community payment.
• CommunityPaymentSent: Logs when a payment is successfully made to a community payment.
• CommunityPaymentTotal: Logs the total amount transferred to the receiver upon completion of a community payment.
• WithdrawFees: Logs the withdrawal of fees by the contract owner.
• RevertComunityPayments: Logs the deactivation of a community payment by the owner.

Modifiers

• onlyOwner: Restricts access to functions that can only be executed by the contract owner.
• onlyCommunityOwner: Restricts access to functions that can only be executed by the owner of a specific community.

Important Notes

• The contract includes error handling to ensure secure and reliable operation.
• The contract owner can withdraw accumulated fees through the withdraw function.
• This smart contract was not audited by a third party. Use at your own risk.

Developer Information

• Developer: Tomas Rawski
• License: MIT
• Version: 0.8.9
• Solidity Version: ^0.8.9

To Do

• Allow the contract owner to deactivate a community payment.
• Allow the contract owner to deactivate a community.
• Allow to cancel a payment if the total amount is not reached.
• Add fees in case of cancellation.