From e135f7b4491decf1836d35e6a3cdeedcc0ca5e6a Mon Sep 17 00:00:00 2001
From: siddarth <balasiddarthan22@gmail.com>
Date: Thu, 4 Jun 2026 14:15:27 +0530
Subject: [PATCH] fix: validate dataset name and columns before submission

Submitting with an empty name or zero columns reached the backend
and returned a cryptic 'Invalid request' error. Now caught on the
client with a clear message before the API call is made.
---
 frontend/app/dataset/new/page.tsx | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/frontend/app/dataset/new/page.tsx b/frontend/app/dataset/new/page.tsx
index bb4dded..d89ca1d 100644
--- a/frontend/app/dataset/new/page.tsx
+++ b/frontend/app/dataset/new/page.tsx
@@ -183,12 +183,21 @@ export default function NewDatasetPage() {
       );
       return;
     }
+    const trimmedDatasetName = datasetName.trim();
+    if (!trimmedDatasetName) {
+      setError("Dataset name is required.");
+      return;
+    }
+    if (columns.length === 0) {
+      setError("Add at least one column before creating the dataset.");
+      return;
+    }
     setIsCreating(true);
     setError(null);
     let datasetId: string;
     try {
       datasetId = await createDataset({
-        name: datasetName,
+        name: trimmedDatasetName,
         description: prompt,
         refreshCadence,
         maxRowCount,