BillingController.php

<?php

namespace App\Http\Controllers;

use Carbon\Carbon;
use FreeKassa;
use Auth;
use App\Balance;
use Illuminate\Http\Request;

class BillingController extends Controller
{
    public function index() 
    {
         return view('billing.index');
    }

    public function invoices() 
    {
         return view('billing.invoices');
    }

    public function goPay(Request $request) 
    {
         $amount = $request->input('amount');
         $merch = $request->input('merch');
         Balance::create([
              'user_id' => Auth::user()->id, 
              'pay_id' => strtoupper(str_random(10)),
              'money' => $amount, 
              'merchant' => $merch,
              'status' => 'process', 
         ]);

         $b = Balance::where('user_id', Auth::user()->id)->first();

         $rows = [
            'time' => Carbon::now(),
            'info' => 'Local payment'
         ];

        $url = FreeKassa::getPayUrl($b->money, $b->pay_id, Auth::user()->email, $rows);

        $redirect = FreeKassa::redirectToPayUrl($b->money, $b->pay_id, Auth::user()->email, $rows);
         return $redirect;
    }
}