JSON response of View Cart Contents

I get the cart content using nodeJs:

WooCommerce.get('cart', function(err, data, res) {
  console.log(JSON.parse(res));
});

But the output is for example:

2afc4dfb14e55c6face649a1d0c1025b
:
data
:
{}
data_hash
:
"b5c1d5ca8bae6d4896cf1807cdf763f0"
key
:
"2afc4dfb14e55c6face649a1d0c1025b"
line_subtotal
:
300
line_subtotal_tax
:
30
line_tax
:
30
line_tax_data
:
{subtotal: {…}, total: {…}}
line_total
:
300
product_id
:
5434
product_name
:
"??????? ??? ???????? ?????"
quantity
:
1
variation
:
[]
variation_id
:
0
__proto__
:
Object

I have to put key after JSON.parse(res) like this to access the cart data within an array: JSON.parse(res).2afc4dfb14e55c6face649a1d0c1025b

And because of “key” in front of cart items, I can not deal with cart.
When I don’t have the key of cart item, how can I access the cart data and containing products?