How to auto reload a page when the data is changed?

It really depends. We don't know anything about your webhook or how it's called or what you're doing with it, so showing your code would be helpful if you want something to work with your specific scenario.

My table is listed below. I kinda want to create a session message when there is a data change, the page should reload with the session message.

Controller

public function receive()
    {
        $message = \Nexmo\Message\InboundMessage::createFromGlobals();

        $org_number = $message->getTo();
        $org_number = substr($org_number, 1);
        $org_number = "(" . $org_number;
        $org_number = substr_replace($org_number, ') ', 4, 0);
        $org_number = substr_replace($org_number, '-', 9, 0);
        $org_id = Organization::where('toll_free_number', '=', $org_number)->first()->id;

        $msg = $message->getBody();

        $user_number = $message->getFrom();
        $user_number = substr($user_number, 1);
        $user_number = "(" . $user_number;
        $user_number = substr_replace($user_number, ') ', 4, 0);
        $user_number = substr_replace($user_number, '-', 9, 0);

        $cancel_msg = MsgTemplate::where('org_id', $org_id)->where('purpose_id', 3)->first()->body;

        if (strcasecmp($msg, '2') == 0) {
            $waiting_lists = Waitinglist::where('org_id', $org_id)->where('phone_number', $user_number)->get();

            if ($waiting_lists->isNotEmpty()) {

                $reply = Nexmo::message()->send($message->createReply($cancel_msg));

                foreach ($waiting_lists as $waiting_list) {
                    $waiting_list->status_id = 6;
                    $waiting_list->notified_at = Carbon::now();

                    $waiting_list->save();
                }
            }
        }
    }

web.php

Route::post('/waitinglist/receive', ['as' => 'waitinglist.receive', 'uses' => 'WaitingListController@receive']);

index.php

@foreach($wait_customers as $wait_customer)
                <tr>
                    <td style="vertical-align: middle">{{$wait_customer->name}}</td>
                    <td style="vertical-align: middle">{{$wait_customer->phone_number}}</td>
                    <td style="vertical-align: middle">{{$wait_customer->table_size}}</td>
                    <td style="vertical-align: middle">{{$wait_customer->started_at}}</td>
                    <td style="text-align: center;">
                        <button data-toggle="modal" data-target="#editModal" class="edit-modal btn btn-outline-primary" data-id="{{$wait_customer->id}}" data-phone_number="{{$wait_customer->phone_number}}" data-table_num="{{$wait_customer->table_num}}">
                            <i class="fa fa-paper-plane-o" aria-hidden="true"></i> Send Notification</button>
                        <a href="{{action('WaitingListController@cancel', $wait_customer)}}" class="btn btn-outline-warning"><i class="fa fa-ban" aria-hidden="true"></i> Cancel</a>
                    </td>
                </tr>
            @endforeach 

I think the best way to really do this is with broadcasting: https://laravel.com/docs/5.5/broadcasting

Another option is to use ajax on a timer to check for changes and update the page if there are any. This isn't as good as broadcasting because in your webhook, you can basically broadcast and event that "I've been updated" and the listener in the view would trigger a reload or something when it receives the notice.

The thing is, your view is already drawn and sent to your browser. Storing something in session in the webhook won't do anything because the view is already created and won't know about the updated session variable. So the ajax and broadcasting solutions get around that and are the only way to update a view that's already in the browser.

Interesting! I will definitely try broadcasting and let you know if I have questions. I will post my answer here after the tryout. Thank you.

https://laravel-mix.com/docs/6.0/browsersync