topic Re: New HubSpot Form Builder – How to Trigger API Call and Redirect After Submission? in APIs & Integrations

New HubSpot Form Builder – How to Trigger API Call and Redirect After Submission?

LeoRebelatto — Fri, 30 May 2025 17:31:01 GMT

I'm integrating a HubSpot form with my app's trial registration. After the user submits the form, I need to make an API call, check the response, and redirect the user to a custom page based on the result.

With legacy forms, I could use form submission events to handle this. But with the new form builder, those events aren't triggering. How can I achieve the same behavior with the new form setup?

Re: New HubSpot Form Builder – How to Trigger API Call and Redirect After Submission?

evaldas — Mon, 02 Jun 2025 13:39:21 GMT

Hi @LeoRebelatto,

The new form builder now has a new set of global form events.

Here is a sample for listening for a successful form submission:

window.addEventListener('hs-form-event:on-submission:success', (event) => { console.log('User successfully submitted the form!'); });

Hope this helps!

Re: New HubSpot Form Builder – How to Trigger API Call and Redirect After Submission?

LeoRebelatto — Tue, 03 Jun 2025 17:56:49 GMT

Hey @evaldas,

This really helped, thank you so much!

Re: New HubSpot Form Builder – How to Trigger API Call and Redirect After Submission?

evaldas — Tue, 03 Jun 2025 18:16:39 GMT

Awesome, glad to hear!