Tapp Exchange

dexs/tapp-exchange/index.ts

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+import {SimpleAdapter} from "../../adapters/types";
+import {CHAIN} from "../../helpers/chains";
+import {postURL} from "../../utils/fetchURL";
+import {randomInt} from "node:crypto";
+import {getTimestampAtStartOfDayUTC} from "../../utils/date";
+
+const URL = 'https://api.tapp.exchange/api/v1'
+
+
+interface TappDefillamaDimension {
+    dailyVolume: number;
+    dailyFee: number;
+    dailyRevenue: number;
+}
+
+const getDefillamaDimension = async (start: number, end: number) => {
+    const body = {
+        "method": "public/defillama_dimension",
+        "jsonrpc": "2.0",
+        "id": randomInt(1, 1000),
+        "params": {
+            "startTime": start,
+            "endTime": end,
+        }
+    }
+    const dimension: { result: TappDefillamaDimension } = await postURL(URL, body)
+
+
+    return dimension.result;
+}
+
+
+const fetch = async (timestamp: number) => {
+    const startOfDay = getTimestampAtStartOfDayUTC(timestamp) * 1000;
+    const endOfDay = startOfDay + 24 * 60 * 60 * 1000 - 1000;
+
+    const {dailyFee, dailyVolume, dailyRevenue} = await getDefillamaDimension(startOfDay, endOfDay);
+
+    return {
+        dailyFees: dailyFee,
+        dailyRevenue: dailyRevenue,
+        dailyVolume: dailyVolume,
+    };
+}
+
+const adapter: SimpleAdapter = {
+    adapter: {
+        [CHAIN.APTOS]: {
+            fetch: fetch,
+            start: "2025-06-12",
+            meta: {
+                methodology: {
+                    Fees: "Total fees from swaps, based on the fee tier of each pool.",
+                    Revenue: "Calculated as 33% of the total fees.",
+                    Volume: "The total volume from all trades, calculated as the sum of input amounts for every swap transaction.",
+                }
+            }
+        },
+    },
+};
+
+export default adapter;

fees/tapp-exchange.ts

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+import adapter from "../dexs/tapp-exchange";
+
+export default adapter;