feat: close #2 add check account balance

app/api/common.ts

@@ -0,0 +1,22 @@
+import { NextRequest } from "next/server";
+
+const OPENAI_URL = "api.openai.com";
+const DEFAULT_PROTOCOL = "https";
+const PROTOCOL = process.env.PROTOCOL ?? DEFAULT_PROTOCOL;
+const BASE_URL = process.env.BASE_URL ?? OPENAI_URL;
+
+export async function requestOpenai(req: NextRequest) {
+  const apiKey = req.headers.get("token");
+  const openaiPath = req.headers.get("path");
+
+  console.log("[Proxy] ", openaiPath);
+
+  return fetch(`${PROTOCOL}://${BASE_URL}/${openaiPath}`, {
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `Bearer ${apiKey}`,
+    },
+    method: req.method,
+    body: req.body,
+  });
+}