How can I access vue-cookies in a vuex store?

You can install js-cookie library and than access cookie like this in vuex store:

import Cookies from 'js-cookie'

const getters = {
  isLoggedIn: function (state) {
    return !!state.email && !!Cookies.get('access_token')
  }
}

you can do (in store.js)

import Vue from 'vue'

...

someAction () {
    Vue.prototype.$cookies.set("token", response.token, "7d");
}

When using vue-cookies in your app

In your store.js, you can

import cookie from 'vue-cookies'

.....

action(){
   cookie.get('token');
}