Power Platform Community Forum Thread Details

Blank page when downloading a file from Dataverse

My app is allowing users to download files from Dataverse.

It works well when the user is signed into what I believe is CRM dynamics, but when is not, the download opens a blank page.

Example: with this URL:

https://mydomain.crm4.dynamics.com/api/data/v9.2/pg_attachmtoses(fdfdsfae)/pg_anexo/$value

If the user opens https://mydomain.crm4.dynamics.com/ and signs in, he's able to download the files, but if the login cookie isn't present in the browser, he gets a blank page.

Is there a way to get around this?

Any help?

Thanks in advance!

you are providing the URL as a link do download the file? If you are doing that it will always not work if the user is not logged in in the system.

"https://mydomain.crm4.dynamics.com/api/data/v9.2" it is a webapi that is required to be authenticated to make the request. So the user will always be authenticated to be able to retrieve. if your are not logged in you must send the OAuth authentication before do the request.

This is not like a file inside a folder on a hosted website. that you just click and will return the binary. if you want to some similar i would recommend to user Azure Blog Storage for that.

Here is more information about authentication Authenticate to Microsoft Dataverse with the Web API (Dataverse) - Power Apps | Microsoft Learn

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