feat: start working on google drive storage

app/api/google/drive/callback/route.ts

@@ -0,0 +1,31 @@
+import { NextResponse } from "next/server";
+import { google } from "googleapis";
+
+export async function GET(request: Request) {
+    try {
+        const url = new URL(request.url);
+        const code = url.searchParams.get("code");
+        const clientId = url.searchParams.get("clientId");
+        const clientSecret = url.searchParams.get("clientSecret");
+        const redirectUri = url.searchParams.get("redirectUri");
+
+        if (!code || !clientId || !clientSecret || !redirectUri) {
+            return NextResponse.json({ error: "Missing parameters" }, { status: 400 });
+        }
+
+        try {
+            const oauth2Client = new google.auth.OAuth2(clientId, clientSecret, redirectUri);
+            const { tokens } = await oauth2Client.getToken(code);
+
+            // Save tokens.refresh_token securely in your DB here
+
+            return NextResponse.json(tokens);
+        } catch (err: any) {
+            console.error("Error exchanging code:", err);
+            return NextResponse.json({ error: "Failed to exchange code" }, { status: 500 });
+        }
+    } catch (error) {
+        console.error("Error in GET handler:", error);
+        return NextResponse.json({ error: "Internal server error" }, { status: 500 });
+    }
+}