public async Task <HttpResponseMessage> InterceptResponse(Task <HttpResponseMessage> response, CancellationToken cancellationToken, FitbitClient Client)
{
if (response.Result.StatusCode == System.Net.HttpStatusCode.Unauthorized)//Unauthorized, then there is a chance token is stale
{
var responseBody = await response.Result.Content.ReadAsStringAsync();
if (IsTokenStale(responseBody))
{
Debug.WriteLine("Stale token detected. Invoking registered tokenManager.RefreskToken to refresh it");
await Client.RefreshOAuth2TokenAsync();
//Only retry the first time.
if (!response.Result.RequestMessage.Headers.Contains(CUSTOM_HEADER))
{
var clonedRequest = await response.Result.RequestMessage.CloneAsync();
clonedRequest.Headers.Add(CUSTOM_HEADER, CUSTOM_HEADER);
return(await Client.HttpClient.SendAsync(clonedRequest, cancellationToken));
}
else if (response.Result.RequestMessage.Headers.Contains(CUSTOM_HEADER))
{
throw new FitbitTokenException(response.Result, message: $"In interceptor {nameof(OAuth2AutoRefreshInterceptor)} inside method {nameof(InterceptResponse)} we received an unexpected stale token response - during the retry for a call whose token we just refreshed {response.Result.StatusCode}");
}
}
}
//let the pipeline continue
return(null);
}
