Ethereum Transaction Fees

1export const name = 'Ethereum Transaction Fees';
2export const version = '0.2.0';
3export const license = 'MIT';
4
5const SEC_IN_DAY = 86400;
6
7export function setup(sdk: Context) {
8  const getFeeResolverForCost = (gasAmt: number) => async () => {
9    const gasData = await sdk.http.get('https://app.defisaver.com/api/gas-price/current');
10    const ethPrice = await sdk.coinGecko.getCurrentPrice('ethereum');
11    return (gasData.regular * gasAmt * ethPrice) / 1e9;
12  };
13
14  const getAverageSwapFee = async (date: string) => {
15    const dayId = Math.floor(sdk.date.dateToTimestamp(date) / SEC_IN_DAY);
16
17    const query = `{
18      dayStat(id: "${dayId}") {
19        averageCostUSD
20      }
21      nextDay: dayStat(id: "${dayId + 1}") {
22        averageCostUSD
23      }
24    }`;
25
26    const result = await sdk.graph.query('dmihal/ethereum-average-fees', query);
27
28    if (!result.dayStat) {
29      throw new Error('Data unavailable');
30    }
31    if (!result.nextDay) {
32      throw new Error('Day incomplete');
33    }
34    return parseFloat(result.dayStat.averageCostUSD);
35  }
36
37
38  sdk.register({
39    id: 'ethereum',
40    queries: {
41      feeTransferEth: getFeeResolverForCost(21000),
42      feeTransferERC20: getFeeResolverForCost(48000),
43      feeTransferToken: getFeeResolverForCost(48000),
44      feeSwap: getFeeResolverForCost(105000),
45      oneDayAverageFeeSwap: getAverageSwapFee,
46    },
47    metadata: {
48      icon: sdk.ipfs.getDataURILoader('QmedJLPy6R7x3dDEy2cfMd8gXbZm9e3vxvgBLXp3YZEHCy', 'image/svg+xml'),
49      category: 'l1',
50      name: 'Ethereum',
51      description: 'Ethereum is the base layer-1 chain.',
52      website: 'https://ethereum.org',
53    },
54  });
55}
56