Basically you'd want to form to auto submit but I see a couple issues with that.
- I haven't been able to get this to work reliably but have some ideas i havent tried yet.
- I would think that realtime search would require something special. First, every key stroke is an api call which may get you rate limited by the third party. Second, the api/database may not be optimized for search like this resulting in slow responses. Thirdly, every key stroke would trigger a form submit which I think would make the subsequent key strokes/UI/UX choppy.
I would implement something that's meant for realtime search.
No clue if these are compatible but what comes to mind is Algolia or Typesense