curl --location --request GET 'https://demo.myshopify.com//admin/api//fulfillment_services/.json'
{
"fulfillment_service": {
"id": 755357713,
"name": "Mars Fulfillment",
"email": null,
"service_name": "Mars Fulfillment",
"handle": "mars-fulfillment",
"fulfillment_orders_opt_in": true,
"include_pending_stock": false,
"provider_id": null,
"location_id": 24826418,
"callback_url": "http://google.com/",
"tracking_support": true,
"inventory_management": true,
"admin_graphql_api_id": "gid://shopify/ApiFulfillmentService/755357713"
}
}