snyder/app/Http/Controllers/AdminController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\WebForm;

class AdminController extends Controller
{

    public function index() {
      $records = WebForm::orderBy('created_at', 'DESC')->paginate(30);
      return view('app.admin.index', compact('records'));
    }
    public function login() {
      return view('app.admin.login');
    }

    public function submitLogin(Request $request){
      $request->validate([
        'username' => 'required|string',
        'password' => 'required|string'
      ]);

      $username = $request->get('username');
      $password = $request->get('password');

      $expectedUsername = config('app.adminSessionUsername');
      $expectedPassword = config('app.adminSessionPassword');

      if($username !== $expectedUsername && $password !== $expectedPassword){
        return redirect()->back()->with('error', 'Invalid credentials!');
      }

      $request->session()->put('adminSession', rand());

      return redirect()->to(route('admin.index'));
    }
    public function logout(Request $request){
      if (!$request->session()->exists('adminSession')) {
          return redirect()->to(route('login'));
      }
      $request->session()->forget('adminSession');
      return redirect()->to(route('admin.index'));
    }
}