Sortable on null id in laravel

It might be because you aren't protecting agaisnt csrf, which is mandatory when doing a post request so, as laravel docs explain you could solve by adding this to your html:

<meta name="csrf-token" content="{{ csrf_token() }}">

Then in your ajax you would only need to append it as a header.

$.ajax({        headers: {            'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')        },        url: '/categorysort/'+ itemID ,        type: 'POST',        dataType: 'json',        data: {itemID: itemID, itemIndex: itemIndex},      });

Also you are only recieving 1 id so I guess that what you are trying to do is sort depending on the parent, therefore you should only select the li with parent class, that way your controller will recieve 1 id instead of 2 because what you are doing right now is /categorysort/{parentId}/{childId} and what you would need is /categorysort/{id}, so instead of selecting all categories just select the top parent categories:

$.map($(this).find('.parent'), function(el)

After see your comments about encodeURI(itemID), I know the problem is your route.php.

I'm getting 404 error on network

You need to update your route with optional parameters :

Route::post(    // Add {second_id?}. This is an "optional parameter".    'categorysort/{first_id}/{second_id?}',     'CategoryController@UpdatecategoryparentByAjax')->name('categorysort');

So, you can access :

• mydomain.test/categorysort/1
• mydomain.test/categorysort/1/2

If you need 3rd id, add more optional parameters like this :

Route::post(    'categorysort/{first_id}/{second_id?}/{third_id?}',     'CategoryController@UpdatecategoryparentByAjax')->name('categorysort');

So, you can access :

• mydomain.test/categorysort/1
• mydomain.test/categorysort/1/2
• mydomain.test/categorysort/1/2/3

If you want to make first_id do the same thing, just add ? after first_id like {first_id?}.

My function doesn't support null category_id

After update your route, your just need call :

public function UpdatecategoryparentByAjax(Request $request, $first_id, $second_id, $third_id){    // $first_id      access your 1st ID    // $second_id     access your 2nd ID     // $third_id      access your 3rd ID    // Do some logic here..}