how to use slug in my route instead of an id-CodePudding

I am trying to use slug in my route instead of the id but it is returning a 404 response. I have tried all resources I could use. Please help me. This is my web URL

<a href="{{route('blog.show' , $blog->id)}}"> 
<button id="readmore" >Read More</button></a>

This is my controller action:

public function showPost(Blog $blog)
{
    $comments = $blog
        ->comments()
        ->with(['blogs'])
        ->paginate(5);
    return view('web.single-post', [
        'blog' => $blog,
        'comments' => $comments,
    ]);
}

This is my route definition:

Route::get('/blog/{blog:slug}', [
    App\Http\Controllers\WelcomeController::class,
    'showPost'
])->name('blog.show');

Finally, this is my model:

public function getRouteKeyName()
{
    return 'slug';
}

CodePudding user response：

Change {{route('blog.show' , $blog->id)}} to {{route('blog.show' , $blog->slug)}}