Optimism Fees

1export const name = 'Optimism Fees';
2export const version = '0.1.5';
3export const license = 'MIT';
4
5export function setup(sdk: Context) {
6  const oneDayTotalFees = async (date: string): Promise<number> => {
7    const nextDay = new Date(date);
8    nextDay.setDate(nextDay.getDate() + 1);
9    const subgraph = 'ap0calyp/optimism-fee-withdrawn';
10    const provider = sdk.ethers.getProvider('optimism');
11
12    const feeWallet = '0x4200000000000000000000000000000000000011';
13
14    const graphQuery = `query feesWithdrawn($startBlock: Int!, $endBlock: Int!) {
15      start: withdrawn(id: 1, block: { number: $startBlock }) {
16        amount
17      }
18      end: withdrawn(id: 1, block: {number: $endBlock}) {
19        amount
20      }
21    }`;
22
23    const [startBlock, endBlock,ethPrice] = await Promise.all([
24      sdk.chainData.getBlockNumber(date, 'optimism'),
25      sdk.chainData.getBlockNumber(nextDay, 'optimism'),
26      sdk.coinGecko.getHistoricalPrice('ethereum', date)
27    ]);
28
29    const [startBalance,endBalance, { start: startWithdrawn, end: endWithdrawn }] = await Promise.all([
30      provider.getBalance(feeWallet, startBlock),
31      provider.getBalance(feeWallet, endBlock),
32      sdk.graph.query(subgraph,graphQuery,{ variables: { startBlock, endBlock } })
33    ])
34
35    if (endWithdrawn === null) {
36      throw new Error(`No Optimism data found on ${date}`);
37    }
38    
39    const ethBalanceChange = endBalance - startBalance;
40    const withdrawn = endWithdrawn.amount - (startWithdrawn?.amount || 0)
41    const fees = (withdrawn + ethBalanceChange) / 1e18
42    return fees * ethPrice
43  }
44
45  sdk.register({
46    id: `optimism`,
47    queries: {
48      oneDayTotalFees
49    },
50    metadata: {
51      category: 'l2',
52      name: 'Optimism',
53      description: 'Optimism is a Layer 2 Optimistic Rollup network designed to utilize the strong security guarantees of Ethereum while reducing its cost and latency.',
54      feeDescription: 'Every Optimism transaction has two costs: An L2 (execution) fee and an L1 (security) fee.',
55      source: 'The Graph Protocol',
56      website: 'https://www.optimism.io',
57      blockchain: 'Optimism',
58      icon: sdk.ipfs.getDataURILoader('QmegSBGwcyoYU9yrgGS2U13DAexE9VYdetTn9rqa88yjZK', 'image/svg+xml'),
59      protocolLaunch: '2021-11-16',
60      tokenLaunch: '2022-06-01',
61      tokenCoingecko: 'optimism',
62    }
63  })
64}