Breadcrumbs will usually correspond to actions or types of pages. For each breadcrumb, at a minimum you must specify a name and the breadcrumb title. You should also define the URL that the breadcrumb links to if it has a corresponding page. Since these are likely to change dynamically, breadcrumbs are registered in callback functions where you may pass any data you need.

The most simple breadcrumb is probably going to be your homepage, which will look something like this:

Breadcrumbs::for('home', static function (BreadcrumbsGenerator $trail): void {
    $trail->push('Home', route('home'));
});

As you can see, you call $trail->push($title, $url) inside the Closure to add the breadcrumb to the list.

For generating the URL, you can use any of Laravel's URL generating functions or provide a URL.

This example would be rendered like this:

{{ Breadcrumbs::render('home') }}

This is another static page, but this has a parent link before it:

Breadcrumbs::for('blog', static function (BreadcrumbsGenerator $trail): void {
    $trail->parent('home');
    $trail->push('Blog', route('blog'));
});

It works by calling the callback for the home breadcrumb defined above and adding any additional items afterwards.

It would be rendered like this:

{{ Breadcrumbs::render('blog') }}

Note that the default templates do not create a link for the last breadcrumb (the one for the current page) even when a URL is specified. You can override this by creating your own template. See the Custom Templates page for more details.

This is a dynamically generated page pulled from the database:

Breadcrumbs::for('post', static function (BreadcrumbsGenerator $trail, Post $post): void {
    $trail->parent('blog');
    $trail->push($post->title, route('post', $post));
});

The $post object (probably an Eloquent model, but could be anything) would be passed in from the view:

{{ Breadcrumbs::render('post', $post) }}

Finally, if you have nested categories or other special requirements, you can call $trail->push() multiple times:

Breadcrumbs::for('category', static function (BreadcrumbsGenerator $trail, Category $category): void {
    $trail->parent('blog');

    foreach ($category->ancestors as $ancestor) {
        $trail->push($ancestor->title, route('category', $ancestor->id));
    }

    $trail->push($category->title, route('category', $category->id));
});

Alternatively you could make a recursive function such as this:

Breadcrumbs::for('category', static function (BreadcrumbsGenerator $trail, Category $category): void {
    if ($category->parent) {
        $trail->parent('category', $category->parent);
    } else {
        $trail->parent('blog');
    }

    $trail->push($category->title, route('category', $category->slug));
});

Both would be rendered like this:

{{ Breadcrumbs::render('category', $category) }}