--## Smart Contract

Overview

This repository contains a Solidity smart contract for managing logistics operations. It allows customers to order items, carriers to update the transit status, and owners to manage carriers.

Features

1. Order Management:

   • Place an order and generate a unique ID.
   • Cancel an order.

2. Carrier Management:

   • Add or remove carriers by the contract owner.
   • Report transit status updates by carriers.

3. Access Control:

   • Owner can manage carriers.
   • Only authorized carriers can update the transit status.

Contract Details

• Contract Name: Logistics
• Solidity Version: 0.8.26
• Owner: Address of the contract deployer
• Key Functions:
  • manageCarriers(address _carrierAddress)
  • orderItem(uint _itemId, string _itemName)
  • cancelOrder(address _uniqueId)
  • carrier1Report(address _uniqueId, string _transitStatus)
  • carrier2Report(address _uniqueId, string _transitStatus)
  • carrier3Report(address _uniqueId, string _transitStatus)

How to Use

1. Deploy the Contract: Deploy the contract using a Solidity-compatible environment like Remix or Truffle.

2. Manage Carriers: The owner can add or remove carriers using the manageCarriers function.

3. Place an Order: Customers can place orders using the orderItem function, receiving a unique ID for their package.

4. Cancel an Order: Customers can cancel their orders using the cancelOrder function.

5. Carrier Reporting: Authorized carriers can update the transit status of packages using the carrier1Report, carrier2Report, and carrier3Report functions.

License

This project is licensed under the MIT License.