1 files changed, 29 insertions, 0 deletions
diff --git a/src/frontend/pages/api/shipping.ts b/src/frontend/pages/api/shipping.ts
new file mode 100644
index 0000000..3a29001
--- /dev/null
+++ b/src/frontend/pages/api/shipping.ts
@@ -0,0 +1,29 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { NextApiRequest, NextApiResponse } from 'next';
+import InstrumentationMiddleware from '../../utils/telemetry/InstrumentationMiddleware';
+import ShippingGateway from '../../gateways/http/Shipping.gateway';
+import { Address, CartItem, Empty, Money } from '../../protos/demo';
+import CurrencyGateway from '../../gateways/rpc/Currency.gateway';
+
+type TResponse = Money | Empty;
+
+const handler = async ({ method, query }: NextApiRequest, res: NextApiResponse<TResponse>) => {
+  switch (method) {
+    case 'GET': {
+      const { itemList = '', currencyCode = 'USD', address = '' } = query;
+      const { costUsd } = await ShippingGateway.getShippingCost(JSON.parse(itemList as string) as CartItem[],
+          JSON.parse(address as string) as Address);
+      const cost = await CurrencyGateway.convert(costUsd!, currencyCode as string);
+
+      return res.status(200).json(cost!);
+    }
+
+    default: {
+      return res.status(405);
+    }
+  }
+};
+
+export default InstrumentationMiddleware(handler);