feat(poolside): adding poolside sdk-adapter

projects/poolside/index.js

@@ -0,0 +1,80 @@
+const ADDRESSES = require('../helper/coreAssets.json')
+const nullAddress = ADDRESSES.null
+const { request, gql } = require("graphql-request");
+const { sumTokens2 } = require("../helper/unwrapLPs");
+const sdk = require("@defillama/sdk");
+
+const graphQuery = gql`
+query GET_PAIRS($block: Int) {
+  pairs {
+    id
+    token0 {
+      id
+    }
+    token1 {
+      id
+    }
+  }
+}
+`;
+
+const Token0Abi = "address:token0"
+const Token1Abi = "address:token1"
+
+const config = {
+  ethereum: {
+    graphUrl: 'https://api.thegraph.com/subgraphs/name/buttonwood-protocol/buttonswap',
+  },
+  avax: {
+    graphUrl: 'https://api.thegraph.com/subgraphs/name/buttonwood-protocol/buttonswap-avalanche',
+  },
+  base: {
+    graphUrl: 'https://api.thegraph.com/subgraphs/name/buttonwood-protocol/buttonswap-base-mainnet',
+  }
+}
+
+async function tvl(chain, block) {
+  const { graphUrl } = config[chain];
+  const { pairs } = await request(
+    graphUrl,
+    graphQuery,
+    {
+      block,
+    }
+  );
+  // Fetching all valid pairAddresses
+  const pairAddresses = pairs.map(pair => pair.id).filter((pairAddress) => pairAddress != nullAddress);
+
+  // Creating calls with each pairAddress as a target
+  const calls = pairAddresses.map(i => ({ target: i }))
+
+  // Multicall for fetching all of the token0s
+  const { output: token0 } = await sdk.api.abi.multiCall({
+    abi: Token0Abi,
+    chain, block, calls,
+  });
+
+  // Multicall for fetching all of the token1s
+  const { output: token1 } = await sdk.api.abi.multiCall({
+    abi: Token1Abi,
+    chain, block, calls,
+  })
+
+  // Combining token0s and token1s into one array
+  const tokensAndOwners = [...token0, ...token1].map(({ output, input: { target }}) => [output, target, ]);
+
+  // Fetching the balances of all of token0s and token1s in each pair and summing them
+  return sumTokens2({ tokensAndOwners, chain, block, })
+}
+
+module.exports = {
+  methodology:
+    "TVL is the sum of all balances stored within the liquidity pools of Poolside. Data fetched from on-chain.",
+};
+
+// Iterating over each chain in config and exporting the tvl function for each
+Object.keys(config).forEach(chain => {
+  module.exports[chain] = {
+    tvl: async (_, _b, { [chain]: block }, { api }) => tvl(chain, block),
+  }
+});