Merge pull request DefiLlama#1398 from DefiLlama/synthetix-v3-volume

add synthetix-v3 volume

dexs/synthetix-v3/index.ts

@@ -0,0 +1,33 @@
+import { ChainBlocks, FetchOptions, SimpleAdapter } from "../../adapters/types";
+import { CHAIN } from "../../helpers/chains";
+
+const contract_address = '0x0a2af931effd34b81ebcc57e3d3c9b1e1de1c9ce';
+const usdt = 'tether'
+const event_order_settled = 'event OrderSettled(uint128 indexed marketId,uint128 indexed accountId,uint256 fillPrice,int256 pnl,int256 accruedFunding,int128 sizeDelta,int128 newSize,uint256 totalFees,uint256 referralFees,uint256 collectedFees,uint256 settlementReward,bytes32 indexed trackingCode,address settler)'
+const fetchFees = async (timestamp: number, _: ChainBlocks, options: FetchOptions) => {
+  const dailyVolume = options.createBalances();
+  const logs = await options.getLogs({
+    target: contract_address,
+    eventAbi: event_order_settled
+  });
+
+  logs.forEach((log: any) => {
+    const volume = Math.abs(Number(log.fillPrice)/1e18 * Number(log.sizeDelta)/1e18)
+    dailyVolume.addCGToken(usdt, volume)
+  });
+
+  return {
+    dailyVolume: dailyVolume,
+    timestamp
+  }
+}
+
+const adapters: SimpleAdapter = {
+  adapter: {
+    [CHAIN.BASE]: {
+      fetch: fetchFees,
+      start: 1705104000,
+    },
+  }
+}
+export default adapters