curl --request GET \
  --url {protocol}://{host}/wp-json/cocart/v1/get-cart/{id}

{
  "1c383cd30b7c298ab50293adfecb7b18": {
    "key": "1c383cd30b7c298ab50293adfecb7b18",
    "product_id": 35,
    "variation_id": 0,
    "variation": [],
    "quantity": 6,
    "data_hash": "b5c1d5ca8bae6d4896cf1807cdf763f0",
    "line_tax_data": {
      "subtotal": [],
      "total": []
    },
    "line_subtotal": 108,
    "line_subtotal_tax": 0,
    "line_total": 108,
    "line_tax": 0,
    "data": {},
    "product_name": "T-Shirt with Logo",
    "product_title": "T-Shirt with Logo",
    "product_price": "£18.00"
  },
  "70efdf2ec9b086079795c442636b55fb": {
    "key": "70efdf2ec9b086079795c442636b55fb",
    "product_id": 17,
    "variation_id": 0,
    "variation": [],
    "quantity": 5,
    "data_hash": "b5c1d5ca8bae6d4896cf1807cdf763f0",
    "line_tax_data": {
      "subtotal": [],
      "total": []
    },
    "line_subtotal": 225,
    "line_subtotal_tax": 0,
    "line_total": 225,
    "line_tax": 0,
    "data": {},
    "product_name": "Hoodie with Logo",
    "product_title": "Hoodie with Logo",
    "product_price": "£45.00"
  }
}