opensea-js/src/utils/utils.ts

TypeScript SDK for the OpenSea marketplace helps developers build new experiences using NFTs and our marketplace data

import { ethers } from "ethers";

// Re-export all utilities from specialized modules
export * from "./converters";
export * from "./chain";
export * from "./fees";
export * from "./protocol";

/**
 * Estimate gas usage for a transaction.
 * @param provider The Provider
 * @param from Address sending transaction
 * @param to Destination contract address
 * @param data Data to send to contract
 * @param value Value in ETH to send with data
 */
export async function estimateGas(
  provider: ethers.Provider,
  { from, to, data, value = 0n }: ethers.Transaction,
) {
  return await provider.estimateGas({
    from,
    to,
    value: value.toString(),
    data,
  });
}

interface ErrorWithCode extends Error {
  code: string;
}

export const hasErrorCode = (error: unknown): error is ErrorWithCode => {
  const untypedError = error as Partial<ErrorWithCode>;
  return !!untypedError.code;
};