Many to Many Table Seeder

CategoryProductsTableSeeder.php

<?php

use App\Shop\Categories\Category;
use App\Shop\Products\Product;
use Illuminate\Database\Seeder;

class CategoryProductsTableSeeder extends Seeder
{
    public function run()
    {
        factory(Category::class, 5)->create()->each(function (Category $category) {
            factory(Product::class, 5)->make()->each(function(Product $product) use ($category) {
                //If you have other columns in the pivot table, do this
                $category->products()->save($product, ['column_name' => 'value']);
            });
        });
    }
}