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TIL how to listen to a Hubspot submit form event

By Marc 17 avril 2020

For my current project, I need to send data to hubspot via a form. This form is managed by Hubspot and injected in my code during runtime. I cannot modify the sumit button behaviour.

I dealt with this problem by listening the click event when someone clicks on the submit button.

I did it like this in my React component :

class Compo extends React.Component {

componentDidMount() {
// add eventListener after 1 sec to be sure hubspot form is loaded
  setTimeout(() =>window.addEventListener('message', this.handleSubmitHubspotForm), 1000);
} 

componentWillUnmount() {
//remove event listener when we change to a new page
window.removeEventListener('message', this.handleSubmitHubspotForm)
}

// method to catch event triggered by the submit button
handleSubmitHubspotForm = (event: any) => {
const decodedAndShortenUrl=decodeURI(urlToRedirect);

if (event.data.type==='hsFormCallback'&&event.data.eventName==='onFormSubmit') {

// redirect to a new URL when event is catch
setTimeout(() =>Router.push(decodedAndShortenUrl), 5000)
};

}

Nothing hard here but a quick snippet code reminder for a next time.

Hope it helps.

Enjoy!