Dissection of an ERC-20 StableCoin: Understanding the stablecoin smart contract (Part Five)

Image Source: https://www.fpmarkets.com/uk/education/trading-guides/what-are-stablecoins-and-how-do-they-work/

Hopefully, this will be the last part of the study of the stablecoin smart contract. We have come a long way, starting from mapping among the abstract contracts, interfaces, and contracts to detailed descriptions of each contract's function. Now, we are left with some critical functions of the contract StableCoin. In this section, we will complete the study of the codes.

You can find all the parts of the article in the following links:

• Part 1, Part 2, Part 3, Part 4, Part 5

function createTransactionControlRequest() :

function createTransactionControlRequest(
        TransactionControlRequestType reqSubType_,
        uint256 id_
    ) external onlySignatory {
        require(
            transactionControlRequests[id_].owner == address(0),
            "INVALID_REQUEST!"
        );

        transactionControlRequests[id_].id = id_;
        transactionControlRequests[id_].subType = reqSubType_;
        transactionControlRequests[id_].owner = msg.sender;
        transactionControlRequests[id_].status = RequestStatus.IN_PROGRESS;

        emit RequestCreated(
            RequestType.TRANSACTION_CONTROL,
            uint256(reqSubType_),
            msg.sender,
            id_
        );
    }

The createTransactionControlRequest function allows a signatory (authorized user) to create a transaction control request, which likely pertains to actions like pausing or unpausing certain operations in a smart contract. Here's an explanation of the code:

Function Signature:

function createTransactionControlRequest(
    TransactionControlRequestType reqSubType_,
    uint256 id_
) external onlySignatory

• external: The function can be called from outside the contract.
• onlySignatory: This modifier ensures that only signatories (authorized individuals) can execute the function.

Function Parameters:

1. TransactionControlRequestType reqSubType_: This parameter specifies the type of transaction control request, such as pausing or unpausing operations. It's an enum that defines specific request types.