How to convert the path to a blob or base64 on iOS?

[wijzijnweb]

On iOS I cant seem to fetch or read the file using fetch or the capacitor filesystem.
File is always "Not found".

On Android it returns: result.videoFilePath
On iOS it returns: result.videoUrl (with file://)

This can't be fetched since it only supports http.
The filesystem also says it's not found.

Any idea on how to solve this?
I've tried:

 const result = await Filesystem.readFile({
            path: filePath,
            directory: FilesystemDirectory.Library, 
            encoding: Encoding.BASE64
        });

A normal fetch(result.videoUrl) won't work.

EDIT

This should work according to the capacitor docs:

const res = await CameraPreview.stopRecordVideo();

const base64 = await Filesystem.readFile({
        path: res.videoUrl
});

console.log(base64)

But this isn't working for me. File not found.

[wijzijnweb]

func captureVideo() throws {
        guard let captureSession = self.captureSession, captureSession.isRunning else {
            throw CameraControllerError.captureSessionIsMissing
        }
        let path = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)[0]
        let identifier = UUID()
        let randomIdentifier = identifier.uuidString.replacingOccurrences(of: "-", with: "")
        let finalIdentifier = String(randomIdentifier.prefix(8))
        let fileName="cpcp_video_"+finalIdentifier+".mp4"
        let fileUrl = path.appendingPathComponent(fileName)
        try? FileManager.default.removeItem(at: fileUrl)
        // Start recording video
        // ...
        // Save the file URL for later use
        self.videoFileURL = fileUrl
    }

Not sure, but is the video deleted on capture?