using System;

using System.Net;

using System.IO;

​

public class Program

{

    public static void Main()

    {

        var authorizationHeaderValue = "Bearer my-token";

        var request = WebRequest.Create("https://api-staging.hartmanneasy.com/v1/customer/clients/mine/external/my-client-id");

        request.Method = "PUT";

        request.Headers.Add("Authorization", authorizationHeaderValue);

        var payload = request.GetRequestStream();

        var writer = new StreamWriter(payload);

        writer.Write("{\"foreignIdentification\":\"my-client-id\",\"dateOfBirth\": \"1940-05-11T00:00:00Z\",\"presenceState\":\"present\", \"firstName\": \"Heiri Sen.\",\"lastName\": \"Badertscher\", \"gender\": null, \"station\":{  \"displayName\":\"Abteilung Tanne\", \"foreignIdentification\":\"my-station-id\"},\"healthInsurance\": null, \"insurancePolicyNumber\": null,  \"insuranceCardNumber\": null,  \"ssn\": \"756.1234.5678.90\",   \"incontinenceDegree\":null}");

        writer.Flush();

        HttpWebResponse response;

        try

        {

            response = (HttpWebResponse)request.GetResponse();

        }

        catch (WebException ex)

        {

            response = (HttpWebResponse)ex.Response;

        }

​

        var stream = response.GetResponseStream();

        var reader = new StreamReader(stream);

        Console.Write(reader.ReadToEnd());

    }

}