public async Task DownloadThumbnailAsync(IDocumentWriter writer, string fileName, string videoId, string thumbnailId)
{
// Get an access token and create the client
var accessToken = await GetAccountAccessTokenAsync();
if (!string.IsNullOrEmpty(accessToken))
{
try
{
var client = GetHttpClient();
var response = client.GetAsync($"{_apiUrl}/{_config.Location}/Accounts/{_config.AccountId}/Videos/{videoId}/Thumbnails/{thumbnailId}?format=Jpeg&accessToken={accessToken}").Result;
if (response.Content.ReadAsStringAsync().Result.Contains("ACCESS_TOKEN_VALIDATION_FAILED"))
{
_logger.Error($"Invalid access token!");
}
var bytes = response.Content.ReadAsByteArrayAsync().Result;
writer.WriteThumbnailImage(fileName, bytes);
}
catch (HttpRequestException ex)
{
_logger.Error($"Error downloading the thumbnail { thumbnailId }. File { fileName }. Message: { ex.Message }");
}
catch (Exception ex)
{
_logger.Error(ex.Message);
}
}
else
{
_logger.Error($"Invalid access token for the account { _config.AccountId }.");
}
}