Transfer files via BluetoothLE from Ionic app to Raspberry Pi Zero W

Question

I have an Ionic application where I am connecting to a Raspberry Pi Zero W via Bluetooth using the bluetoothle plugin.

Everything works great in general.

I would like to ask if there is a plugin or a way to transfer files via Bluetooth.

I have designed a custom solution, but before starting developing it, I would like to know if I can save some trouble.

Similar to

ble.write({OBJECT TO PASS}, environment.ble.serviceID, environment.ble.characteristicID)
      .then((res) => {
        ...
      })
      .catch(err => {
        ...
      });

I would like to know if I can pass a file to OBJECT TO PASS and do the work.

In my custom solution, I designed a way to read n bytes of the file, send it to the write request, then continue with the next n bytes, until the file ends. So, I have planned to pass strings and create the file n bytes at a time inside the Raspberry.

I would like to keep this question simple, so I am not providing any more details regarding the NodeJS and Python code in Raspberry Pi Zero W, but if someone needs it I could provide it.

In the Image you can see the custom solution.