use the backend properly

src/app/admin/page.tsx

@@ -1,8 +1,7 @@
 "use client";
 
-import { useState } from "react";
+import { useState, useEffect } from "react";
 import { products } from "../../data/products";
-import discountCodes from "../../data/discountCodes.json";
 import type { DiscountCode } from "../../types/discount";
 
 export default function AdminPage() {
@@ -215,12 +214,28 @@ function ProductsManager() {
 
 function DiscountManager() {
   const [discountList, setDiscountList] =
-    useState<Record<string, DiscountCode>>(discountCodes);
+    useState<Record<string, DiscountCode>>({});
   const [newCode, setNewCode] = useState("");
   const [newPercentage, setNewPercentage] = useState(0);
   const [newExpiration, setNewExpiration] = useState("");
   const [newDescription, setNewDescription] = useState("");
 
+  useEffect(() => {
+    const fetchDiscountCodes = async () => {
+      try {
+        const response = await fetch('/api/discount-codes');
+        if (response.ok) {
+          const codes = await response.json();
+          setDiscountList(codes);
+        }
+      } catch (error) {
+        console.error('Failed to fetch discount codes:', error);
+      }
+    };
+
+    fetchDiscountCodes();
+  }, []);
+
   const addDiscountCode = async () => {
     if (!newCode || newPercentage <= 0) return;
 

src/app/api/discount-codes/route.ts

@@ -0,0 +1,22 @@
+import { NextResponse } from "next/server";
+
+const DATA_SERVER_URL = process.env.DATA_SERVER_URL || "http://localhost:3001";
+
+export async function GET() {
+  try {
+    const response = await fetch(`${DATA_SERVER_URL}/api/discount-codes`);
+    
+    if (!response.ok) {
+      throw new Error("Failed to fetch discount codes");
+    }
+
+    const discountCodes = await response.json();
+    return NextResponse.json(discountCodes);
+  } catch (error) {
+    console.error("Error fetching discount codes:", error);
+    return NextResponse.json(
+      { error: "Failed to fetch discount codes" },
+      { status: 500 }
+    );
+  }
+}

src/components/CartView.tsx

@@ -1,14 +1,30 @@
 "use client";
 
-import { useState } from "react";
+import { useState, useEffect } from "react";
 import { useCart } from "../contexts/CartContext";
 import { formatDiamonds } from "../utils/formatDiamonds";
-import discountCodes from "../data/discountCodes.json";
-import type { DiscountCode } from "../types/discount";
+import type { DiscountCode, DiscountCodes } from "../types/discount";
 
 export default function CartView() {
   const { state, dispatch } = useCart();
   const [discountCode, setDiscountCode] = useState("");
+  const [discountCodes, setDiscountCodes] = useState<DiscountCodes>({});
+
+  useEffect(() => {
+    const fetchDiscountCodes = async () => {
+      try {
+        const response = await fetch('/api/discount-codes');
+        if (response.ok) {
+          const codes = await response.json();
+          setDiscountCodes(codes);
+        }
+      } catch (error) {
+        console.error('Failed to fetch discount codes:', error);
+      }
+    };
+
+    fetchDiscountCodes();
+  }, []);
 
   const calculateItemTotal = (item: (typeof state.items)[0]) => {
     let basePrice = item.product.pricePerStack * item.quantity;

src/data/discountCodes.json

@@ -1 +0,0 @@
-{}