$base64_from_endpoint = 'data:image/png;base64,AAAFBfj42Pj4';
    $save_path='/tmp/';

    list($image_type, $image_data) = explode(';', $base64_from_endpoint);
    list(, $image_data)      = explode(',', $image_data);
    $image_data = base64_decode($image_data);
    file_put_contents($save_path.'image.png', $image_data);