Is there a way to send push notifications with the Adalo custom action feature without having to use Zapier or Integromat? Can’t I just set the API Base URL to “https://api.adalo.com/notifications”, add necessary headers and put in the request body?
Not sure why would you like to send Push notifications via custom action (Adalo has a built-in capability for sending pushes), but reg. your question: you need to use POST method. See more here: