add Alkemi Network

projects/alkemi/index.js

@@ -0,0 +1,82 @@
+/*==================================================
+  Modules
+  ==================================================*/
+
+  const sdk = require('../../sdk');
+  //const abi = require('./abi.json');
+  const BigNumber = require('bignumber.js');
+  //const ERROR = BigNumber("3963877391197344453575983046348115674221700746820753546331534351508065746944")
+
+/*==================================================
+  TVL
+  ==================================================*/
+
+
+  const etherAddress = '0x0000000000000000000000000000000000000000';
+  const alkPools = [
+	              '0x397c315d64D74d82A731d656f9C4D586D200F90A', // Alkemi Earn
+	              '0x4822D9172e5b76b9Db37B75f5552F9988F98a888', // Alkemi Earn Open
+                   ];
+  const alkTokens = [
+                      '0x8125afd067094cD573255f82795339b9fe2A40ab', // WETH, Alkemi Earn Open
+                      '0x1f52453B32BFab737247114D56d756A6c37dd9Ef', // WETH, Alkemi Earn
+                      '0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599', // WBTC
+                      '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', // USDC
+                      '0x6B175474E89094C44Da98b954EedeAC495271d0F', // DAI
+                    ];
+
+  async function tvl(timestamp, block) {
+    const alkCombos = function() {
+      arr = Array(alkPools.length * alkTokens.length);
+      for (var i=0; i<alkPools.length; i++) {
+        for (var j=0; j<alkTokens.length; j++) {
+          arr[i*alkTokens.length+j] = {target: alkTokens[j], params: alkPools[i]};
+          }
+      }
+      return arr;
+    };
+
+    const alkQueries = alkCombos();
+    //console.log(alkQueries);   // for debugging 
+    //console.table(alkQueries); // for debugging
+
+    const wethEarnOpen = '0x8125afd067094cD573255f82795339b9fe2A40ab';
+    const wethEarn = '0x1f52453B32BFab737247114D56d756A6c37dd9Ef';
+    let balances = {
+	    [etherAddress]: '0',
+	    [wethEarnOpen]: '0',
+	    [wethEarn]: '0',
+      };
+    const alkBalances = await sdk.api.abi.multiCall(
+      {
+        calls: alkQueries,
+        abi: 'erc20:balanceOf',
+        block
+      });
+    await sdk.util.sumMultiBalanceOf(balances, alkBalances);
+    //console.table(balances); // for debugging
+
+    // handle Alkemi custom WETH
+    const wethBalances = new BigNumber(balances[wethEarnOpen]).plus(balances[wethEarn]);
+    balances[etherAddress] = wethBalances.toFixed(0);
+    balances[wethEarnOpen] = '0';
+    balances[wethEarn] = '0';
+
+    //let supported = await sdk.api.util.tokenList();
+    //console.table(supported); // print supported assets
+    //console.table(balances); // for debugging
+    return balances;
+  };
+
+/*==================================================
+  Exports
+  ==================================================*/
+
+  module.exports = {
+    name: 'Alkemi Network',   // project name
+    website: 'https://alkemi.network',
+    token: 'ALK',             // null, or token symbol if project has a custom token
+    category: 'lending',      // allowed values as shown on DefiPulse: 'Derivatives', 'DEXes', 'Lending', 'Payments', 'Assets'
+    start: 1609380306,        // unix timestamp (utc 0) specifying when the project began, or where live data begins
+    tvl                       // tvl adapter
+  };