Merge pull request #2197 from isle-labs/isle-finance

feature: Add Isle Finance adapter

Author: slasher125

src/adaptors/isle-finance/index.js

@@ -0,0 +1,81 @@
+const { request } = require('graphql-request');
+
+const GRAPH_URL = {
+    Hedera: "https://api.goldsky.com/api/public/project_cmdfkhd2uxajf01vq022c7ion/subgraphs/isle-hedera-main/main/gn"
+};
+const POOL_URL_BASE= "https://app.isle.finance/pools/";
+const PROJECT_SLUG = "isle-finance";
+const gqlQueries = {
+  poolsData: `
+    query PoolsData {
+      pools: markets(where: { isActive: true }) {
+        address: id
+        lockedAmount: inputTokenBalance
+        borrowedAmount: variableBorrowedTokenBalance
+        rates {
+          rate
+          side
+        }
+        inputToken {
+          address: id
+          decimals
+          name
+          symbol
+        }
+      }
+    }
+  `
+}
+
+function roundTo2Decimals(num) {
+  return Math.round(num * 100) / 100;
+}
+
+function formatByDecimals(value, decimals = 0) {
+  if (value == null || isNaN(value)) return 0;
+  const num = Number(value) / 10 ** decimals;
+  return roundTo2Decimals(num);
+}
+
+function formatApy(value) {
+  if (value == null || isNaN(value)) return 0;
+  const num = Number(value);
+  return roundTo2Decimals(num);
+}
+
+const apy = async () => {
+  const allPools = [];
+
+  for (const [chain, url] of Object.entries(GRAPH_URL)) {
+    try {
+      const { pools } = await request(url, gqlQueries.poolsData);
+      if (!pools?.length) continue;
+
+      const chainPools = pools.map((p) => {
+        const tokenAddr = p?.inputToken?.address || "";
+        const tokenDecimals = p?.inputToken?.decimals ?? 0;
+        return {
+          pool: `${p?.address || ""}-${chain}`.toLowerCase(),
+          chain,
+          project: PROJECT_SLUG,
+          symbol: p?.inputToken?.symbol || "",
+          tvlUsd: formatByDecimals(p?.lockedAmount, tokenDecimals),
+          totalBorrowUsd: formatByDecimals(p?.borrowedAmount, tokenDecimals),
+          apyBase: formatApy(p?.rates?.find((r) => (r?.side || "") === "LENDER")?.rate),
+          apyBaseBorrow: formatApy(p?.rates?.find((r) => (r?.side || "") === "BORROWER")?.rate),
+          underlyingTokens: tokenAddr ? [tokenAddr] : [],
+          url: `${POOL_URL_BASE}${p?.address ?? ""}/overview`,
+        };
+      });
+
+      allPools.push(...chainPools);
+    } catch (err) {
+      console.error(`${chain} error:`, err?.message ?? err);
+    }
+  }
+  return allPools;
+};
+
+module.exports = {
+  apy,
+};