boursecu_server/app/Http/Middleware/ValidationMiddleware.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;

class ValidationMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure(\Illuminate\Http\Request): (\Illuminate\Http\Response|\Illuminate\Http\RedirectResponse)  $next
     * @return \Illuminate\Http\Response|\Illuminate\Http\RedirectResponse
     */
    public function handle(Request $request, Closure $next)
    {
        if ($request->acceptsJson() || $request->is('admin/wallet/withdraw/report')) {
            //convert fa digits to en digits
            $allData = array_merge($request->all(), $request->query());
            $converted = $this->fa2en_numbers($allData);
            $request->merge($converted);

            $method = $request->getMethod();
            $path =$request->path();
            if(preg_match('/[0-9]+$/',$request->path(),$match)) {
                $match_id = $match[0];
                $path = preg_replace('/[0-9]+$/', '{id}', $request->path());
            }
            $format = 'validation.'.$path.'@'.strtolower($method);
            if (config($format)) {
                if ($path == 'admin/user/{id}'){
                    $replace = preg_replace('/update_id/', $match_id, config($format));
                    $validator = Validator::make($request->all(), $replace);
                }
//                elseif(isset($match[0])){
//                    $replace = preg_replace('/update_#/', $match[0], config($format));
//                    $validator = Validator::make($request->all(), $replace);
//                }
                else{
                    $validator = Validator::make($request->all(), config($format));
                }
                if ($validator->fails()) {
                    return response()->json($validator->errors(),422);
                }
            }
            return $next($request);
        }
        throw new BadRequestHttpException();
    }
    private function fa2en_numbers($input) {
        if (is_string($input)) {
            $fa_numbers = ['۰', '۱', '۲', '۳', '۴', '۵', '۶', '۷', '۸', '۹'];
            $ar_numbers = ['٠', '١', '٢', '٣', '٤', '٥', '٦', '٧', '٨', '٩'];
            $en_numbers = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
            $input = str_replace($fa_numbers, $en_numbers, $input);
            $input = str_replace($ar_numbers, $en_numbers, $input);
            $input = str_replace('٫', '.', $input);

            return $input;
        } elseif (is_array($input)) {
            return array_map([$this, __FUNCTION__], $input);
        } else {
            return $input;
        }
    }

}