415 when deleting contact list

[JoseC212]

Hi, 

Call to Delete contact_lists returns

status code 415

response 

[
{
"error_key": "contacts.api.error",
"error_message": "The provided content-type 'text\/plain' is not supported."
}]

Why is content type needed as the call is not providing any request content.  

Snippet of API client ASP.Net Core 3.1

httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {accessToken}");
httpClient.DefaultRequestHeaders.Add("Accept", "application/json");

var response = await httpClient.DeleteAsync($"{baseUrl}{apiVersion}/contact_lists/{contactListId}");
var content = await response.Content.ReadAsStringAsync();
if (response.IsSuccessStatusCode)
{
var jObject = JObject.Parse(content);
return mapper.Map<DeleteContactListDto>(jObject);
}
else
logger.Warning(content);

Thanks

[JoseC212 · Accepted solution]

Changed how the request is sent and added empty content

 var request = new HttpRequestMessage(HttpMethod.Delete, $"{baseUrl}{apiVersion}/contact_lists/{contactListId}");

 request.Headers.Add("Authorization", $"Bearer {accessToken}");

 request.Headers.Add("Accept", "application/json");

 request.Content = new StringContent(string.Empty, Encoding.UTF8, "application/json");

and sent request using 

var response = await httpClient.SendAsync(request);