How to verify session and auth token in Vue 2 and Laravel 5.5

I have a project structure like client folder and server folder. Within client folder I have full Vue 2 project template using vue-admin-lte. Front end is working perfectly but where I am stuck is I need to authenticate each and every request to pass to server folder(running Laravel 5.5). Basically, how to compare and validate the access_token parameter sent from the frontend against the access_token present for each and every route.

via Chebli Mohamed