mirror of
https://github.com/kremalicious/metamask-extension.git
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38 lines
1.4 KiB
TypeScript
38 lines
1.4 KiB
TypeScript
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import { abiERC20 } from '@metamask/metamask-eth-abis';
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import { Contract } from '@ethersproject/contracts';
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import { Web3Provider } from '@ethersproject/providers';
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/**
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* Gets the '_value' parameter of the given token transaction data
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* (i.e function call) per the Human Standard Token ABI, if present.
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*
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* @param {object} tokenData - ethers Interface token data.
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* @returns {string | undefined} A decimal string value.
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*/
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/**
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* Gets either the '_tokenId' parameter or the 'id' param of the passed token transaction data.,
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* These are the parsed tokenId values returned by `parseStandardTokenTransactionData` as defined
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* in the ERC721 and ERC1155 ABIs from metamask-eth-abis (https://github.com/MetaMask/metamask-eth-abis/tree/main/src/abis)
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*
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* @param tokenData - ethers Interface token data.
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* @returns A decimal string value.
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*/
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export function getTokenIdParam(tokenData: any = {}): string | undefined {
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return (
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tokenData?.args?._tokenId?.toString() ?? tokenData?.args?.id?.toString()
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);
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}
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export async function fetchTokenBalance(
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address: string,
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userAddress: string,
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provider: any,
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): Promise<any> {
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const ethersProvider = new Web3Provider(provider);
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const tokenContract = new Contract(address, abiERC20, ethersProvider);
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const tokenBalancePromise = tokenContract
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? tokenContract.balanceOf(userAddress)
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: Promise.resolve();
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return await tokenBalancePromise;
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}
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