HttpClient azure function returning 401 error - azure

Question

I have a python azure function I'm trying to integrate with a C# backend. I'm trying to upload a file from an angular front end using a c# back end to post the data.
However, I'm getting a 401 error unauthorized. My function isnt anonymous level authentication and I'm attaching the keys to the headers, but is there something I'm missing that I need to include?
I've tried adding all the authentication to the headers and the form data headers but no luck.
public HttpResponseMessage UploadPartsTemplate()
{
MultipartFormDataContent form = new MultipartFormDataContent();
Dictionary<string, string> parameters = new Dictionary<string, string>();
string baseUrl = ConfigurationManager.AppSettings["PartsProjectAPIURL"];
try
{
var fileBytes = Request.Content.ReadAsStreamAsync().Result;
client.BaseAddress = new Uri(baseUrl);
HttpContent content = new StringContent("");
content.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data")
{
Name = "file",
FileName = "template.xlsx"
};
content = new StreamContent(fileBytes);
form.Add(content, "template.xlsx");
form.Headers.Add("x-functions-key", ConfigurationManager.AppSettings["XFunctionsKey"]);
form.Headers.Add("Ocp-Apim-Subscription-Key", ConfigurationManager.AppSettings["OcmAPISubscriptionKey"]);
form.Headers.Add("Ocp-Apim-Trace", "true");
form.Headers.Add("command", "validate");
form.Headers.Add("code", ConfigurationManager.AppSettings["XFunctionsKey"]);
client.DefaultRequestHeaders.Add("x-functions-key", ConfigurationManager.AppSettings["XFunctionsKey"]);
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", ConfigurationManager.AppSettings["OcmAPISubscriptionKey"]);
client.DefaultRequestHeaders.Add("Ocp-Apim-Trace", "true");
client.DefaultRequestHeaders.Add("command", "validate");
HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK);
var response = client.PostAsync(baseUrl, form).Result;
return result;
}
catch(Exception ex)
{
throw;
}
}
And the POST Request in Postman works just fine. Any help would be appreciated!
Thank you!