Call simple POST API from console App in VS2019 with XML - asp.net

Question

I have referred the Trying to call simple POST API from console App in VS2019. But, need to pass XML method in post instead of JSON . Any suggestions ?
static async Task Main(string[] args)
{
var TicketTask = await createTicket();
}
async static Task<string> createTicket()
{
var content = "unknown error";
using (var httpClient = new System.Net.Http.HttpClient())
{
using (var request = new System.Net.Http.HttpRequestMessage(new HttpMethod("POST"), "http://1.0.01.1/slive/"))
{
try
{
var base64authorization = Convert.ToBase64String(Encoding.ASCII.GetBytes("username:password"));
request.Headers.TryAddWithoutValidation("Authorization", $"Basic {base64authorization}");
request.Content = new StringContent("<soapenv:Envelope xmlns:xsi...", Encoding.UTF8, "application/xml"); ????? need to post a xml method here
request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("text/xml");
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
HttpResponseMessage response = await httpClient.SendAsync(request).ConfigureAwait(false);
content = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
Console.WriteLine(response);
}
catch (Exception ex)
{
content = ex.Message;
}
}
}
return content;

Answer 1

Found the solution, please correct me if there is a better way:
async static Task<string> createTicket2()
{
var content = "unknown error";
using (var httpClient = new System.Net.Http.HttpClient())
{
using (var request = new System.Net.Http.HttpRequestMessage(new HttpMethod("POST"), "http://10/sap-lve/"))
{
try
{
var base64authorization = Convert.ToBase64String(Encoding.ASCII.GetBytes("an:s"));
request.Headers.TryAddWithoutValidation("Authorization", $"Basic {base64authorization}");
String str1 = #"<s:Envelope xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'><s:Body><Get_api_version xmlns='http://e.s.a.com'/></s:Body></s:Envelope>";
**request.Content = new StringContent(str1, Encoding.UTF8, "text/xml");** ;
request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("text/xml");
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
HttpResponseMessage response = await httpClient.SendAsync(request).ConfigureAwait(false);
content = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
//Console.WriteLine(response);
var result = response.Content.ReadAsStringAsync();
Console.WriteLine(result.Result);
}
catch (Exception ex)
{
content = ex.Message;
}
}
}
return content;
}