Downloading Files (JPG and PDF) from server - laravel 5.6 - php

Question

I am able to upload jpg and pdf to my server (database). Now, I want to be able to download it when I click on the file itself in my view as shown below.
When I click on the file, it routes me to the download page and says page cannot be found and the file is not downloaded
What am I not doing right?
Controller
public function upload(Request $request)
{
$storeFiles = new File;
$uniqueFileName = uniqid() . Input::file('upload_file')->getClientOriginalName() . '.' . Input::file('upload_file')->getClientOriginalExtension();
Input::file('upload_file')->move(public_path('/public/files') . $uniqueFileName);
$storeFiles->path = $uniqueFileName;
$storeFiles->description = Input::get('description');
$storeFiles->save();
return redirect()->back()->with('status', 'File uploaded successfully.');
}
public function download($filename)
{
$file_path = public_path('/public/files'). $filename;
if (file_exists($file_path))
{
// Send Download
return Response::download($file_path, $filename, [
'Content-Length: '. filesize($file_path)
]);
}
else
{
// Error
exit('Requested file does not exist on our server!');
}
}
Routes
Route::get('/course/download/{{file?}}', 'FileController#download')->name('course.download');
View
<td>{{$file->path}}</td>