[GET:/api/users/123,status:200]
[RESPONSE:user,fields=id+email+created+last_login]
[POST:/api/orders,status:201]
[RESPONSE:order-created,fields=id+user_id+total+status]
[PUT:/api/orders/5001,status:200]
[RESPONSE:order-updated,fields=id+status]
[GET:/api/orders/5001,status:200]
[RESPONSE:order-full,fields=id+user_id+total+status+items+shipping]
[DELETE:/api/cart/items/789,status:204]
