Guys, can someone help me, I'm trying to make an API call to the "Push Notification" and I'm not succeeding.

When I test the api and credentials by the POSTMAN program I can perform the calls and send notifications, but when I try to do it through my website I can't.

I'm using the site "https://bubble.io/" to build my app and the doubts are in filling in the credentials fields and parameters, has anyone done something like that and can you give me some guidance?