Problema com requisição Ajax - Acesso a Postcontroller

Preciso mudar os like e deslike (tipo boolean) com Laravel 6.0 e para isso estou utilizando JQuery e Ajax para realizar requisição em background no controller, mas de alguma forma não estou acessando o controller de Posts.

tela2
Não gera erro clicando no like do frontend, mas se eu for direto para http://127.0.0.1:8999/like Porque o GET?

Rotas

Route::post('/like', 'PostController@postLike')->name('post.like'); 

Route::get('artigos', 'PostController@index')->name('post.index'); 
Route::get('artigos/novo', 'PostController@create')->name('post.create');
Route::get('artigos/{post}', 'PostController@show')->name('post.show');
Route::post('artigos', 'PostController@store')->name('post.store');

app.js

   $('.like').on('click', function(event) {
   event.preventDefault();
   postId = event.target.parentNode.parentNode.dataset['postid'];
   var isLike = event.target.previousElementSibling == null;

$.ajax({
    method: 'POST',
    url: urlLike,
    data: {isLike: isLike, postId: postId, _token: token}
}).done(function() {
    event.target.innerText = isLike ? event.target.innerText == 'Like' ? 'You like this post' : 'Like' : event.target.innerText == 'Dislike' ? 'You dont like this post' : 'Dislike';
    if (isLike) {
        event.target.nextElementSibling.innerText = 'Dislike';
    } else {
        event.target.previousElementSibling.innerText = 'Like';
    }
  });
 });

Método na PostController

public function postLike(Request $request)
{
    $post_id = $request['postId'];
    $is_like = $request['isLike'] === 'true';
    $update = false;
    $post = Post::find($post_id);

    if (!$post) {
        return null;
    }
    $user = Auth::user();
    $like = $user->likes()->where('post_id', $post_id)->first();
    if ($like) {
        $already_like = $like->like;
        $update = true;
        if ($already_like == $is_like) {
            $like->delete();
            return null;
        }
    } else {
        $like = new Like();
    }
    $like->like = $is_like;
    $like->user_id = $user->id;
    $like->post_id = $post->id;

    if ($update) {
        $like->update();
    } else {
        $like->save();
    }
    return null;
}

index.blade.php

 @extends('admin.master.layout')

 @section('content')
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
    <table class="table" id="formCad">
            <div class="row featurette">
                @foreach($posts as $post)
                    <div class="col-md-12" data-postid="{{ $post->id }}">
                        <h4 class="featurette-heading teste">{{$post->id}} | {{$post->title}}</h4>
                        <h3 class="lead text-muted">{{$post->content}}.</h3>
                        @foreach($post->categories as $cat)
                            <p class="badge badge-success">{{$cat->title}}</p>
                        @endforeach
                        <p class="blockquote-footer">Posted by {{ $post->user->name }} on
                            {{date('d/m/yy H:II', strtotime($post->user->created_at))}} |
                            Views: {{$post->view}}
                        </p>

                        <div class="interaction">
                            <a href="#" class="m-1 like">
                                {{ Auth::user()->likes()->where('post_id', $post->id)->first() ? Auth::user()->likes()->where('post_id', $post->id)->first()->like == 1 ? 'You like this post' : 'Like' : 'Like'  }}
                            </a>
                            <a href="#" class="m-1 like">
                                {{ Auth::user()->likes()->where('post_id', $post->id)->first() ? Auth::user()->likes()->where('post_id', $post->id)->first()->like == 0 ? 'You dont like this post' : 'Dislike' : 'Dislike'  }}
                            </a>
                        </div>
                    </div>
                @endforeach
            </div>
    </table>
</main>

<script>
    var token = '{{ Session::token() }}';
```var urlLike = '{{ route('post.like') }}';
</script>
@endsection