getAllowance

The getAllowance function is a key feature in the StableCoin Contracts, designed to retrieve the amount of tokens that an owner has allowed a spender to use on their behalf. This function is vital for managing permissions in token operations, particularly in scenarios involving delegated token transfers or interactions with smart contracts.

Method Signature

async getAllowance(owner: string, spender: string): Promise<string>

Parameters

• owner: string: The Ethereum address of the token owner. This can be a standard Ethereum address or an ENS name.
• spender: string: The Ethereum address of the spender who is authorized to use the tokens. This also can be a standard Ethereum address or an ENS name.

Function Logic

1. Resolve ENS Names: Converts both owner and spender addresses from ENS names to their corresponding Ethereum addresses, if applicable.
2. Get Contract Instance: Creates an instance of the contract to interact with the blockchain.
3. Query Allowance: Calls the allowance method on the contract to get the amount of tokens the spender is allowed to use from the owner's account.
4. Return Result: The result, which is the allowance amount, is returned as a string.

Example Usage

const ownerAddress = "owner.eth";
const spenderAddress = "spender.eth";

stableCoinContract.getAllowance(ownerAddress, spenderAddress)
    .then(result => 
        // add your logic here 
    )
    .catch(error => 
        // add your logic here
    );

Notes

• Understanding allowances is crucial for effectively managing token operations and permissions in decentralized applications.
• Proper resolution of ENS names is essential to ensure accurate query results.