feat: integrate Reservoir's yield data

src/adaptors/reservoir/index.js

@@ -0,0 +1,48 @@
+const { request, gql } = require('graphql-request');
+
+const GRAPHQL_URL = 'https://data.staging.arkiver.net/robolabs/reservoir-mainnet-v2/graphql';
+
+const graphQuery = gql`
+    query GetStats {
+        PairSnapshots {
+            swapApr
+            managedApy
+            pair {
+                address
+                curveId
+                token0
+                token1
+                token0Symbol
+                token1Symbol
+                tvlUSD
+            }
+        }
+    }
+`;
+
+const getApy = async () => {
+    const { PairSnapshots } = await request(GRAPHQL_URL, graphQuery);
+
+    return PairSnapshots.map((snapshot) => {
+        const symbols = snapshot.pair.token0Symbol + '-' + snapshot.pair.token1Symbol
+        const poolType = snapshot.pair.curveId === 0 ? 'Constant Product' : 'Stable'
+        return {
+            pool: snapshot.pair.address,
+            chain: 'Avalanche',
+            project: 'reservoir',
+            symbol: symbols,
+            tvlUsd: snapshot.pair.tvlUSD,
+            apyBase: (snapshot.swapApr + snapshot.managedApy) * 100, // to convert into percentage form
+            apyReward: 0,
+            rewardTokens: [], // we do not have incentive tokens at this point
+            underlyingTokens: [snapshot.pair.token0, snapshot.pair.token1],
+            poolMeta: poolType
+        }
+    })
+}
+
+module.exports = {
+    timetravel: false,
+    apy: getApy,
+    url: 'https://analytics.reservoir.fi/',
+};