packages/instant/src/util/etherscan.ts


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import * as _ from 'lodash';

import { Network } from '../types';

const etherscanPrefix = (networkId: number): string | undefined => {
    switch (networkId) {
        case Network.Kovan:
            return 'kovan.';
        case Network.Mainnet:
            return '';
        default:
            return undefined;
    }
};

export const etherscanUtil = {
    getEtherScanTxnAddressIfExists: (txHash: string, networkId: number) => {
        const prefix = etherscanPrefix(networkId);
        if (_.isUndefined(prefix)) {
            return;
        }
        return `https://${prefix}etherscan.io/tx/${txHash}`;
    },
    getEtherScanEthAddressIfExists: (ethAddress: string, networkId: number) => {
        const prefix = etherscanPrefix(networkId);
        if (_.isUndefined(prefix)) {
            return;
        }
        return `https://${prefix}etherscan.io/address/${ethAddress}`;
    },
};