Plugin(s)

• Analytics
• App
• App Check
• Authentication
• Crashlytics
• Cloud Firestore
• Cloud Functions
• Cloud Messaging
• Cloud Storage
• Performance
• Remote Config

Current problem

The plugin allows to get the download URL of a file.
But if we protected a file with a rule, it may be useful to have another way and avoid generating a public link.

Preferred solution

In the firebase web sdk, we have the getBlob method to directly get the file as Blob.

On Android & iOS, the app can crash if we download the file in memory (see https://capawesome.io/blog/the-file-handling-guide-for-capacitor/).
For these native platforms, we can use the "download to local file" functionality.

So we can add a "getBlob()" method (only on web) and a "downloadFile()" method (only Android & iOS).

Alternative options

No response

Additional context

Firebase doc:

• Web: https://firebase.google.com/docs/storage/web/download-files#download_data_directly_from_the_sdk
• Android: https://firebase.google.com/docs/storage/android/download-files#download_to_a_local_file
• iOS: https://firebase.google.com/docs/storage/ios/download-files#download_to_a_local_file

Before submitting

• I have read and followed the feature request guidelines.
• I have attached links to possibly related issues and discussions.