Laravel ajax 500 (Internal Server Error) - ajax

Question

I am trying to do an ajax call in laravel. The ajax call logs my data how I want it, but keeps giving me the 500 error. I've read that you need to set the _token in the data field. But that doesn't work for me. So, I can log all the data, but ones I want to push it to the DB I keep getting this error.
Here's my code.
Script.js
$('.likeBtn').click(function(e){
e.preventDefault();
var userid=$(this).siblings('input[name=userID]');
console.log(userid[0].value);
var useridarticle=$(this).siblings('input[name=userIdFk]');
console.log(useridarticle[0].value);
var articleid=$(this).siblings('input[name=articleId]');
console.log(articleid[0].value);
var token=$(this).siblings('input[name=_token]');
console.log(token[0].value);
$.ajax({
url:"articles" ,
type: "post",
data: {'user_id':userid[0].value,
'article_id':articleid[0].value,
'user_id_fk':useridarticle[0].value,
'_token': token[0].value},
success: function(data){
console.log(data);
}
});
});
Controller.
if(Request::ajax()) {
$data = Input::all();
print_r($data);
}
My tokens are set in the header of my master.blade
<meta name="_token" content="{!! csrf_token() !!}"/>
And at the end of my master.blade
$.ajaxSetup({
headers: { 'X-CSRF-Token' : $('meta[name=_token]').attr('content') }
});
What am I not seeing? FYI, You might ask why I need does variables. I need them because I generate the same form in a foreach. This works fine for me, i get the data that I want so.