GET /checkout/get-basket
HTTP 200 OKContent-Type:application/jsonVary:AcceptAllow:OPTIONS, GET{
    "msg": "Your basket is empty", 
    "basket_reservation_time": 0, 
    "total_discounted": {
        "discounted_premium": 0, 
        "discounted": 0
    }, 
    "lines": [], 
    "total_prices": {
        "total_premium_ex_vat": 0, 
        "total_price": 0, 
        "total_premium": 0, 
        "total_price_ex_vat": 0
    }
}