Store data in multiple table in a single API request

I have 2 mysql tables operator and operator_details, also a relation: Operator has many OperatorDetails
I would like to know if i can use the /operator POST API to store data in these table in a single API request by posting data like this:

{
    "operator_name": "Morton",
    "route_from": "Location A",
    "route_to": "Location B",
    "operator_details": [
        {
            "driver_name": "Jack",
            "driver_mobile_number": "1234567890"
        },
        {
            "driver_name": "Donald",
            "driver_mobile_number": "1234567890"
        }
    ]
}

Along with maintaining the relation between the tables.

Hi, i am also try to find the answer to post data in multiple table in single REST api as same like your one. did you get any solution for this?