//TODO 2.1.4.a Finally, we will add delete functionality.
        public async Task <HttpStatusCode> DeleteAccount(string id, string userName)
        {
            try
            {
                //TODO 2.1.4.b To delete a document, we are going to need the id of the document and the username of the account.
                _ = await client.DeleteDocumentAsync(dbHandler.GetDocumentUri(id), new RequestOptions()
                {
                    PartitionKey = new PartitionKey(userName) //TODO 2.1.4.c Specify the partition key value in the request options.
                });

                //TODO 2.1.4.d Then return an OK response code if it succeeds.
                return(HttpStatusCode.OK);
            }
            catch (DocumentClientException e)
            {
                //TODO 2.1.4.e Otherwise return the code from Cosmos.
                return((HttpStatusCode)e.StatusCode);
            }
        }