How to Show Data After Login in Laravel

After successfully login from auth, I wan to show the data from database. But I got an error like this.

Undefined variable: barangs (View: C:xampp7htdocsexample-appresourcesviewsbarang.blade.php) in c1126675c0e1af0f5c253b69d8a8d64d968d987a.php line 188

and this is the login controller

    class loginController extends Controller
{
   function auth(Request $req){

        $username = $req->input('your_name');
        $password = md5($req->input('your_pass'));

        $chekLogin = DB::table('user')->where(['username'=>$username,'password'=>$password])->get();
        if(count($chekLogin) > 0 ){
           
         return view('barang');
        }
        else {
           echo " Login Failed, Wrong Data";
        }
      ;

   }

}

and this is my barangController

    class barangController extends Controller
{
   public function data(){

        $barangs = DB::table('barang')->get();
        //return $barangs;
        return view('barang',['barangs'=>$barangs]);
   }
}

this is my barang.blade.php

<div class="x_content">
                  <p class="text-muted font-13 m-b-30">
                   Info Barang
                  </p>
                  <table id="datatable" class="table table-striped table-bordered">
                    <thead>
                      <tr>
                        <th>Kode Barang</th>
                        <th>Nama Barang</th>
                        <th>Action</th>
                      </tr>
                    </thead>
                    <tbody>
                      @foreach ($barangs as $item)
                      <tr>
                        <td>{{$item->kode_barang}}</td>
                        <td>{{$item->nama_barang}}</td>
                        <td><a href="" class="btn btn-primary btn-sm"><i class="fa fa-pencil"></i></a>
                        </td>
                      </tr>
                      @endforeach
                    </tbody>
                  </table>
                </div>
              </div>
            </div>

and this is my route

Route::get('/', function () {
    return view('index');
});
Route::post('auth','loginController@auth')->name('login.auth');

Route::get('databarang', 'barangController@data');

please help me,I dont know why barang is not defined in here, may I forgot to add something? Thankyou before

Answer

The error is because you’re not including the barangs data when you return your view in the auth function.

Instead of returning a view from your auth, redirect the user:

if(count($chekLogin) > 0 ){
    return redirect(url('databarang'));
}

What this will do is redirect your user to the route which then returns your view('barang') but includes the missing barangs data.

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Answer