Rest API return response XML format, but same xml not get in result by using httpclient - api

Question

I have created web api which return xml format response. like below
<TXLife xmlns="http://ACORD.org/Standards/Life/2">
<TXLifeResponse>
<TransRefGUID>61ec7f39-5744-410e-b601-dcd89d8d6f27</TransRefGUID>
<TransType tc="510">Form Instance Update</TransType>
<TransSubType tc="1022500310">Annuity Application for Mani ManiM</TransSubType>
<TransExeDate>2016-08-25-04:00</TransExeDate>
<TransExeTime>16:36:41.157-04:00</TransExeTime>
<TransMode tc="2">Original</TransMode>
<NoResponseOK tc="0"/>
<TransResult>
<ResultCode tc="3">Received Pending</ResultCode>
</TransResult>
But when call API using httpclient, I received response but response data is not same as above instead i got decode of special character.
<string xmlns="http://schemas.microsoft.com/2003/10/Serialization/"><?
xml version="1.0" encoding="utf-8"?>
<TXLife xmlns:acord="http://ACORD.org/Standards/Life/2">
<TXLifeResponse>
<TransRefGUID>dd8973e3-ac03-4690-908b-
65da3d6a770f</TransRefGUID>
<TransType tc="510">Form Instance Update</TransType>
<TransSubType tc="1022500310">
Annuity Application for SUZANNE M PERSON</TransSubType>
<TransExeDate>2020-08-17</TransExeDate>
<TransExeTime>15:28:24Z</TransExeTime>
<TransMode tc="2">Original</TransMode>
<NoResponseOK tc="0" />
<TransResult>
<ResultCode tc="3">Received Pendinge</ResultCode>
</TransResult>
</TXLifeResponse>
</TXLife></string>
I am using below code to call API
string response = string.Empty;
using (var client = new HttpClient())
{
client.BaseAddress = parameters.DestinationUri;
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xml"));
var responseTask = client.PostAsXmlAsync(parameters.DestinationUri, request);
responseTask.Wait();
var result = responseTask.Result;
if (result.IsSuccessStatusCode)
{
response = result.Content.ReadAsStringAsync().Result;
}

Answer 1

Resolved. I fixed by just in API response. I return HttpResponseMessage instead of return string object. Changes in API like below
string response = "response string info";
return new HttpResponseMessage()
{
Content = new StringContent(response, Encoding.UTF8, "application/xml")
};