Laravel upload an image

upload.php

<?php

function store(Request $request)
{
    $this->validateImage($request);

    $image = new Image();

    $file = $request->file('file');

    $image->original_file_name = 'original.'.$file->extension();
    $image->thumbnail_file_name = 'thumbnail.'.$file->extension();

    $image->save();

    $disk = Image::disk();

    // Upload the original image...
    $disk->putFileAs(
        $image->getBasePath(),
        $file,
        $image->original_file_name
    );

    // Create and upload the thumbnail...
    $disk->put(
        $image->thumbnail_file_path,
        value(function () use ($file, $image, $disk) {
            return Manipulator::make($file)->fit(300, 300)->stream();
        })
    );

return new ImageResource($image);
}