Created a discount system related to the user's e-mail address and applied to the packages

src/hooks/useDiscounts.tsx

@@ -0,0 +1,22 @@
+import { Discount } from "@/interfaces/paypal";
+import { Code, Group, User } from "@/interfaces/user";
+import axios from "axios";
+import { useEffect, useState } from "react";
+
+export default function useDiscounts(creator?: string) {
+  const [discounts, setDiscounts] = useState<Discount[]>([]);
+  const [isLoading, setIsLoading] = useState(false);
+  const [isError, setIsError] = useState(false);
+
+  const getData = () => {
+    setIsLoading(true);
+    axios
+      .get<Discount[]>("/api/discounts")
+      .then((response) => setDiscounts(response.data))
+      .finally(() => setIsLoading(false));
+  };
+
+  useEffect(getData, [creator]);
+
+  return { discounts, isLoading, isError, reload: getData };
+}