Laravel validator does'nt correctly validate file mime type - laravel

Question

I send multiple files to my server with postman
And these files are uploaded correctly but they are not properly validated before uploading
this is my controller
public function store(Request $request)
{
// دریافت دایرکتوری مطالبه مربوطه : $demand=Demand::find(72)->files->first()->file_directoryس
//{"title":"this is test title","demandContent":"this is test content "} send as form-data request
//------------------------------------------- Valid Uploaded File ---------------------------------
$rules = array(
'file' => 'required',
'file.' => 'mimes:doc,pdf,docx,zip,jpg,jpeg,rar'
);
$error = Validator::make($request->all(), $rules);
if($error->fails())
return response()->json(['errors' => $error->errors()->all()]);
//-------------------------------------------- Valid Uploaded File -------------------------------
$request->data=json_decode($request->data); //دریافت به صورت جیسون و تبدیل به شی
$demand=new Demand(['title' => $request->data->title,'content'=>$request->data->demandContent,'user_id'=>auth('api')->user()->id]);
if($demand->save()) //اگر درخواست در دیتابیس قبت شد
{
//----------------------------File Upload Scope---------------------------------------
if($request->hasfile('file'))
{
$path='public/demands/'.$demand->id.'/files';
foreach($request->file('file') as $file)
{
$filename=$file->getClientOriginalName();
$file->move($path, $filename);
}
$demand->files()->save(new File(['file_directory'=>$path]));
}
//----------------------------File Upload Scope---------------------------------------
return response()->json(['demand'=>new DemandResource($demand)],200);
}
return response()->json(['state'=>'false']);
}

Answer 1

In your validation rules you have forgotten * like:
$rules = [
'file' => 'required',
'file.*' => 'required|file|mimes:doc,pdf,docx,zip,jpg,jpeg,rar',
];