How to reload session data via Ajax without reloading the page?

Hello guys, I have a Lang switcher menu that change my App`s lang saving it in the session. But, I want to know if it's possible to refresh all view data without reloading the page..

I'm trying the following in my menu:

$(document).ready(function () {

        $('.langs a').on('click', function () {

            var lang_prefix = $(this).data('lang');

            $.ajaxSetup({
                headers: {
                    'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
                }
            });

            $.ajax({
                data: {lang: lang_prefix},
                type: 'GET',
                url: '/lang/'+lang_prefix,
                success: function (result) {
                    sessionData = result.sessionData
                    console.log(sessionData);
                }
            });

        });
    });

And my controller:

public function language(Request $request, $lang)
    {
        $langs = Config::get('app.locales');
        $default_lang = Config::get('app.locale');

        if (array_key_exists($lang, $langs)) {
            $request->session()->put('locale', $lang);
        } else {
            $request->session()->put('locale', $default_lang);
        }
        $request->session()->save();
        return response([
            'sessionData' => session()->all()
        ]);
    }

My Ajax is changing the Language, but the data in my view just change if I refresh the page..