how to pass value in app blade

1//create a service provider
2php artisan make:provider ComposerServiceProvider
3  
4//register the app service provider in providers array of config/app.php
5App\Providers\ComposerServiceProvider::class,
6
7//pass the data you want to share in views 
8<?php 
9namespace App\Providers;
10use Illuminate\Support\Facades\View;
11use Illuminate\Support\ServiceProvider;
12
13class ComposerServiceProvider extends ServiceProvider {
14
15    public function boot()
16    {
17        View::composer('*', function($view){
18            $data = Some logic here ; //eg User::all();
19            $view->with('data', $data); // 'data' is value to be used in views 'data' = $data
20        });
21    }
22
23    public function register()
24    {
25        //
26    }
27}
28