Add ability to read only part of a file.

[HarelM]

Feature Request

Given a File, or a file URI, allow a developer to read only part of the file.
This is the equivalent of the slice method of File or Blob.

Plugin

Filesystem

Description

I would like to migrate from cordova-file-plugin to this capacitor plugin, but I'm not sure I can do that as I'm not sure all my current usages are covered by this plugin.

Platform(s)

iOS & Android

Preferred Solution

Return an object that follows the File API to allow using the same code for files that are stored on the device and also files that are added to an <input type="file" ... /> HTML element.

Alternatives

Continue using cordova file plugin :-(

Additional Context

The following code is the code I would like to migrate, there's not a lot of code there, but it would be great if I could stop using cordova plugins:

https://github.com/IsraelHikingMap/Site/blob/ac0618e4af3fd4832855a1bf4acd48c28069563f/IsraelHiking.Web/src/application/services/pmtiles.service.ts

https://github.com/IsraelHikingMap/Site/blob/ac0618e4af3fd4832855a1bf4acd48c28069563f/IsraelHiking.Web/src/application/services/file.service.ts

I can summarize the file API that are used in the above two services if that helps, but I think a wider context of how they are used is better.
Let me know if there's anything I can do to help out.

[OS-pedrogustavobilro]

Hey @HarelM , just to confirm - you want to be able to read part of a file, and not necessarily starting at the beginning of the file - using offset and length parameters, which is something the cordova plugin you are using supports, correct?

[HarelM]

Yes, correct. Thanks for looking into this!