i have created a web API and i have used list of object as parameter in HttpResponseMessage, its working  from Postman (saving data in Sql server DB)

how to pass that json data from vs 2010 webform

can u please help me

        [HttpPost]
        public HttpResponseMessage PatDet([FromBody]List<Patient> patientDetails)
        {
            try
            {
                if (patientDetails.Count == 0)
                {
                    return Request.CreateResponse(HttpStatusCode.OK, "No Records Found");
                }

                return Request.CreateResponse(HttpStatusCode.OK, d.InsertPatDetails(patientDetails));
            }
            catch (Exception ex)
            {
                ErrorLog.WriteError(ex.ToString());
                //throw ex;
                return new HttpResponseMessage(HttpStatusCode.InternalServerError);
            }
        }

[
  {
    "FirstName": "xyz kumar",
    "DateOfBirth": "1996-06-07",
    "LastName": "",
    "Gender": "M",
    "Id": "4567YTRTYU",
    "Mobile": "9999999999",
    "KIN": [
      {
        "Name": "aghvd dsds",
        "Visits": [
          { "date": "2020-06-24T00:00:00" },
          { "date": "2020-06-26T00:00:00" },
          { "date": "2020-06-28T00:00:00" }
        ]
      }
    ]
  },
  {
    "FirstName": "abc",
    "DateOfBirth": "1996-06-07",
    "LastName": "",
    "Gender": "F",
    "PatientId": "4567YTYU",
    "Mobile": "",
    "KIN": [
      {
        "Name": "hdbcsj jshd",
        "Visits": [
          { "date": "2020-07-02T00:00:00" },
          { "date": "2020-07-10T00:00:00" },
          { "date": "2020-07-18T00:00:00" },
          { "date": "2020-07-26T00:00:00" }
        ]
      }
    ]
  }
]