{
  "openapi": "3.0.1",
  "info": {
    "title": "User Product API",
    "version": "1.0.0",
    "description": "API for managing products associated with users"
  },
  "servers": [
    {
      "url": "https://api.example.com/{id}",
      "variables": {
        "id": {
          "default": "eu",
          "description": "Server variable representing the region of the API (e.g., 'us' for United States, 'eu' for Europe)"
        }
      }
    }
  ],
  "paths": {
    "/users/{id}/cart": {
      "get": {
        "operationId": "getProductFromCart",
        "summary": "Retrieve a user's cart",
        "description": "Retrieve the contents of the cart for the user ID provided in the query parameter.",
        "parameters": [
          {
            "name": "id",
            "in": "query",
            "required": true,
            "description": "The ID of the subscription to retrieve products from",
            "schema": {
              "type": "string"
            }
          },
          {
            "name": "id",
            "in": "path",
            "required": true,
            "description": "The ID of the user whose cart is being retrieved (query parameter)",
            "schema": {
              "type": "string"
            }
          },
          {
            "name": "id",
            "in": "header",
            "required": true,
            "description": "The ID representing the session (header parameter)",
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Successfully retrieved the user's cart"
          }
        }
      }
    }
  }
}