Update index.js

index.js

@@ -137,8 +137,12 @@ app.get('/testdb', async (req, res) => {
     const collection = dbClient.collection("api_keys");
     try {
         const result = await collection.find({}).toArray();
-        const userIds = results.map(data => data.owner).filter(userId => userId !== undefined);
-        res.json({ userIds });
+        const userIds = [];
+        for (const data of results) {
+          if (data.owner !== undefined) {
+            userIds.push(data.owner);
+          }
+        }
     } catch (error) {
         console.error("Failed to get data from DB: " + error);
         res.status(500).send("Error fetching data from database.");