I need to reserve items in my database when a user adds them to his/her basket. I am currently using the session id (
Okay, so I copy my comment here:
_token is to defend against csrf attack. More here: laravel.com/docs/5.3/csrf
_token field is unique per request. You can send this token as request variable or cookie.
Remember - by default all post actions need this field (one of middlewares keep eye on this).
You have access to token value by function
csrf_token() - or
csrf_field() to get HTML input field.