Euler v2 TVL and borrowed adapter

Author: MickdeGraaf

projects/euler/v2.js

@@ -0,0 +1,45 @@
+const { ethereum } = require('.')
+const { getLogs } = require('../helper/cache/getLogs')
+const { sumTokens2 } = require('../helper/unwrapLPs')
+
+const EULER_FACTORY = "0x29a56a1b8214D9Cf7c5561811750D5cBDb45CC8e"
+module.exports = {
+    methodology: `TVL is supply balance minus borrows the euler contract.`,
+    ethereum: {
+        tvl,
+        borrowed
+    }
+};
+
+async function tvl(api) {
+    const logs = await getLogs({
+        api,
+        target: EULER_FACTORY,
+        fromBlock: 20529225,
+        eventAbi: "event ProxyCreated(address indexed proxy, bool upgradeable, address implementation, bytes trailingData)",
+        onlyArgs: true
+    });
+
+    const vaults = logs.map(log => log.proxy);
+    const underlyingAssets = await api.multiCall({ abi: "address:asset", calls: vaults})
+    const tokensAndOwners = underlyingAssets.map((underlying, i) => [underlying, vaults[i]]);
+
+    return sumTokens2({ api, tokensAndOwners });
+}
+
+async function borrowed(api) {
+    const logs = await getLogs({
+        api,
+        target: EULER_FACTORY,
+        fromBlock: 20529225,
+        eventAbi: "event ProxyCreated(address indexed proxy, bool upgradeable, address implementation, bytes trailingData)",
+        onlyArgs: true
+    });
+
+    const vaults = logs.map(log => log.proxy);
+    const underlyingAssets = await api.multiCall({ abi: "address:asset", calls: vaults})
+    const borrows = await api.multiCall({ abi: "uint256:totalBorrows", calls: vaults})
+
+    api.addTokens(underlyingAssets, borrows);
+    return api.getBalances();
+}