How to append query string to url in laravel 5.3

Question

I'm using laravel 5.3 and in postLogin method, I want to append api_token as query string to url as follows:

http://localhost/Exams/student/dashboard?api_token=4ZtxTu7fAwYpcPYRu46GWmVfncPO0i

My LoginController.php is:

public function postStudentLogin(Request $request){ 
   $student = DB::table('students')->where('email', $request->get('email'))->first();   
   if(Hash::check( $request->get('password'),$student->password))
    {       
      Session::flash('login_message','You have been logged in successfully.');  
      return redirect()->route('dashboard',['api_token'=> $student->api_token]);    
    }
    else{   
       return redirect()->back()->withErrors('Incorrect username/password');   
      } 
   } 

and routes/web.php is:

Route::group(['prefix' => 'student', 'namespace' => 'Auth'], function(){
   Route::get('/','Student\LoginController@getStudentHome');    
   Route::get('/login/{page}',['uses' => 'Student\LoginController@getStudentLogin' ]);  
   Route::any('/dashboard',['uses' =>'Student\LoginController@postStudentLogin'])->name('dashboard');      
});

It appends api_token to dashboard , but $student always comes null in postStudentLogin() method, even though dd($student) gives complete student details.

Please guide me where I'm wrong.

Thanks,

Dipti Sheth

Answer 1

//Declare new queries you want to append to string:
$newQueries = ['foo' => 'bar', 'popular'];


//Generate the URL with all the queries:
//Retrieve current query strings with new query variable appended.
$request->fullUrlWithQuery($newQueries);

Answer 2

There must be default request parameter,

public function postStudentLogin(Request $request){         
   $retArr = $request->all();
   // try to dd here $retArr variable, you should get everything
 }

Give it a try, this should work.

EDIT

To get only query string try this,

Request::getQueryString();

And yes, add this use Illuminate\Http\Request; to your namespace at the top of file.

Rest, you should get in $request->all().