Ankr

1export const name = 'Ankr';
2export const version = '0.0.1';
3export const license = 'MIT';
4
5const aETHc_ADDRESS = '0xE95A203B1a91a908F9B9CE46459d101078c2c3cb';
6const aETHb_ADDRESS = '0xD01ef7C0A5d8c432fc2d1a85c66cF2327362E5C6';
7
8const aETHc_ABI = [
9  'function ratio() public view returns (uint256)',
10];
11
12
13export function setup(sdk: Context) {
14
15  const getTotalStakedForToken = async (tokenAddress: string) => {
16    const token = sdk.ethers.getERC20Contract(tokenAddress);
17    const supply = await token.totalSupply();
18    return supply.toString() / 1e18;
19  }
20
21  const getTotalStaked = async () => {
22 
23    let totalStaked = await getTotalStakedForToken(aETHb_ADDRESS) + await getTotalStakedForToken(aETHc_ADDRESS); 
24    return totalStaked ;
25  }
26
27
28  const getAPR = async () => {
29    const aETHcContract = sdk.ethers.getContract(aETHc_ADDRESS, aETHc_ABI);
30
31    const today = sdk.date.formatDate(new Date());
32    const weekAgo = sdk.date.offsetDaysFormatted(today, -7);
33
34    const ratioNow = await aETHcContract.ratio({blockTag: today});
35    const ratioWeekAgo = await aETHcContract.ratio({blockTag: weekAgo});
36
37    // get accumulated rewards per eth staked using '1 - ratio' 
38    const rewardsDiff = (1  - ( ratioNow.toString() / 1e18 )) - (1  - ( ratioWeekAgo.toString() / 1e18 ));
39
40    return rewardsDiff * 52;
41  }
42
43  sdk.register({
44  id: 'ankr',
45  queries: {
46    totalStakedEth: getTotalStaked,
47    apr: getAPR,
48  },
49  metadata: {
50    name: 'Ankr',
51    icon: sdk.ipfs.getDataURILoader('QmedFW6x588qnxWgQP9RZiNs27AXF3kREptY1cuaXXPRVS', 'image/svg+xml'),
52  }
53});
54
55  
56}
57
58
59