/// <inheritdoc/>
public async Task <string> DownloadFrom(Uri url)
{
uint attempt = 1;
while (true)
{
try
{
var request = httpClient.GetStringAsync(url);
return(await request);
}
catch (HttpRequestException ex) when(ex.Message.Contains(/*HTTP Fehler*/ " 403 "))
{
if (attempt <= _maxRetries)
{
System.Threading.Thread.Sleep(
RetryStrategy.CalculateExponentialBackoff(timeSlotForRetry, attempt)
);
++attempt;
continue;
}
throw new Exception($"Das Abrufen von Hypertext aus der URL {url} is gescheitert!", ex);
}
}
}