Merge pull request #1786 from 4Cast-Studio/master

add 4Cast fees adaptor

fees/4cast/index.ts

@@ -0,0 +1,41 @@
+import { Adapter, FetchOptions, FetchV2 } from "../../adapters/types";
+import { CHAIN } from "../../helpers/chains";
+import { postURL } from "../../utils/fetchURL";
+
+interface IData {
+  dailyFees: string;
+}
+
+const endpoint = "https://www.4cast.win/api/api/platformFees";
+
+function createSolBalances(options: FetchOptions, value: string) {
+  const balances = options.createBalances();
+
+  balances.add('So11111111111111111111111111111111111111112', Number(value) * 1e9);
+
+  return balances;
+}
+
+const fetch: FetchV2 = async (options) => {
+  const data: IData = await postURL(endpoint, {
+    startTimestamp: options.startTimestamp,
+    endTimestamp: options.endTimestamp,
+  });
+
+  return {
+    dailyFees: createSolBalances(options, data.dailyFees),
+  };
+};
+
+const adapter: Adapter = {
+  version: 2,
+  adapter: {
+    [CHAIN.SOLANA]: {
+      fetch,
+      runAtCurrTime: false,
+      start: 1721174400,
+    },
+  },
+};
+
+export default adapter;