Creating an LC smart contract

The LC smart contract will serve as an interface for the LC Master contract so that we can create and deploy a new contract. The smart contract will consist of the following components:

• Data structure
  • LCNew: To capture and store the LC details
• Functions
  • viewLCDetails: To view the LC details
  • settleLC: To invoke a settlement request to the LC

• Modifiers
  • onlyAuth: Only permits buyer, seller, and the bank to access to the method
  • onlySeller: Only permits the seller to access the method
• Event
  • SettleLCSuccessful: Triggered after a successful settlement request

Now, let's start creating the LC smart contract by following these steps:

1. Start by creating a file called LC.sol.
2. We will first declare the compiler version and import our dependent contracts, as shown in the following code block:

pragma solidity ^0.5.2;

import "openzeppelin...