FIX BY SYMPTOM
Data not saving in your Supabase app?
When a form in a Supabase app "saves" but nothing appears, the write was usually blocked by Row Level Security (no INSERT or UPDATE policy), the row's user_id does not match the signed-in user, or the code ignores the error that supabase-js returns instead of throwing. In AI-built apps, the screen is sometimes still wired to mock data. VibePitstop fixes this as an auth & database security fix, without opening your tables to everyone.
Why writes silently fail
- No INSERT policy: inserts fail with 42501 (new row violates row-level security policy).
- UPDATE without a matching SELECT policy or
usingclause: the update affects zero rows and returns no error. .insert().select()needs a SELECT policy too, or you get an error after a successful insert.user_idnot set or wrong: thewith checkcompares it toauth.uid().- Errors ignored: supabase-js returns
{ data, error }; if nobody readserror, failures look like success. - Still on mock data: the UI updates local state and never calls the database.
Make failures visible, then fix the policy
const { data, error } = await supabase
.from("todos").insert({ title }).select();
if (error) console.error(error.code, error.message);
-- default the owner to the signed-in user
alter table public.todos alter column user_id set default auth.uid();
create policy "own rows: insert" on public.todos
for insert to authenticated with check ((select auth.uid()) = user_id);
Never "fix" this by disabling RLS or using the service role key in the browser.
Want it fixed instead?
Auth & database security fix (Supabase, Firebase): from $400 (one issue); larger scope quoted up to $800 after diagnosis. The $149 diagnosis is credited toward any paid job.
Common worries, answered
- Will you mess up my repo? No. We work from read-only access, and every fix arrives as a pull request. Nothing merges until you merge it.
- Is this just more AI? AI coding agents help prepare fixes. A human reviews every fix before it ships.
- What if it still breaks? We keep working until the written scope is done, at no extra cost. Fixed, or we keep working free until it is (within the written scope).
- What about Stripe and my secret keys? Scoped access only. We never take full keys or owner logins; your secrets stay yours.
- How is this different from asking ChatGPT? We don't stop at advice. We fix and launch against a written scope.
Get a $149 diagnosis See pricing Fix my auth & database security
- Fixed, or we keep working free until it is (within the written scope).
- A human reviews every fix before it ships.
- read-only access; fixes arrive as pull requests you merge
- Your $149 diagnosis is credited in full toward any paid job.
FAQ
Why does my Supabase update return no error but change nothing?
RLS filtered the row out, so zero rows matched. Add an UPDATE policy with using and with check, plus a SELECT policy.
Should I disable RLS to make saving work?
No. With RLS off, anyone holding your public anon key can read and change the table.
Who can fix data not saving in my Lovable app?
VibePitstop, as an auth & database security fix, from $400 (one issue); larger scope quoted up to $800 after diagnosis.
Related
- Supabase RLS: empty results or 42501
- Firestore permission denied
- Check if your Supabase data is exposed
- All symptoms