Error: Endpoint is not accessible. Help to set up endpoint

I’m setting up an API post to generate PDFs (https://html2pdf.app/).
this is the Post call https://api.html2pdf.app/v1/generate?url=[url]&apiKey=[key]&callBackUrl=[urlfile]
I am able to generate the PDF file but the site API is not able to access my endpoint and deliver me the PDF file.

Erro

What may be wrong with the endpoint?

What do you send to the callbackurl parameter?

Have you verified that your app isn’t protected with credentials?
This message usually appears when the option “limit access to this app with username and password” is checked (Bubble Editor> Settings> General)

Hi, I send my endpoint URL.

Hi @devease, I’ll give it a try and come back to tell you if it solved the problem or not. Thanks.

In this case that option is not checked, so the problem may be another one. Thank’s any way for trying to help.

Instead of calling the html2pdf from the page and asking to send the document to the endpoint using the callBackURL, you can do it this way: schedule a Bubble API workflow from your page, in this API workflow generate the PDF, then save the result in your database.

I’ll ask the site support if it is possible to get the file as a response. Unfortunately their documentation is very poor.

Using the GET method I can get a pdf binary code as a result, but I have no idea on how to convert that to PDF. Could you help me?

and this is the result (go to the page and wait the MultilineInput load the call result)
https://pedidobr.bubbleapps.io/version-test