How to trigger a JavaScript function after Webflow Memberstack signup completion? Answered

• 

  Raquel Lopez

  • April 14, 2025 18:35

  Hi Max,
  Memberstsck doesn’t have an event to listen to forms. If you’re using Webflow I think you can use a normal listener to listen for the submit

  If you were to manually handle the form you could send the data to memberstack by using the memberstack signup method and after await the response you can trigger the callback

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• 

  Max Joles

  • April 14, 2025 18:36

  Can you explain the second part? What do you mean by “manually handling the form”?

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• 

  Raquel Lopez

  • April 14, 2025 18:37

  Manually handling means not using the Memberstack parameters (data--ms-form=...) but instead using the form as a plain form to send the data. You can use a submit listener, and handle the data of the form using signupMemberEmailPassword provided by Memberstack library.In simple terms, it would look to something like this

  signupForm.addEventListener("submit", async (e) => {
    e.preventDefault();
  
    // handle submit
    await memberstack.signupMemberEmailPassword({
      // formData
    })
  
    yourCallback()
  });
  

  https://developers.memberstack.com/docs/dom-front-end-package#signing-up-a-member-using-email-and-password

  

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