public async Task <Optional <List <Question> > > GetSince(long unixEpoch, int page, string site, string[] tags)
{
var throttle = _store.Read <StackexchangeThrottle>("StackexchangeThrottle");
if (Unthrottled(throttle))
{
if (UnixEpoch.Now >= throttle.QuotaResetTime)
{
throttle.QuotaResetTime = StackexchangeThrottle.UNKNOWN;
}
string url = CreateUrl(unixEpoch, page, site, tags);
var results = await _web.Request(url);
var wrapper = JsonConvert.DeserializeObject <StackexchangeWrapper>(Encoding.UTF8.GetString(Gzip.Decompress(results.Bytes)));
if (results.StatusCode == HttpStatusCode.OK)
{
UpdateThrottle(throttle, wrapper);
_store.Write("StackexchangeThrottle", throttle);
return(new Optional <List <Question> >(wrapper.Items.ToList()));
}
else
{
throttle.BackoffUntil = ForceWait2Hours();
_store.Write("StackexchangeThrottle", throttle);
}
}
return(new Optional <List <Question> >());
}
public Optional <string> IfICanNotMakeRequestsWhy()
{
var throttle = _store.Read <StackexchangeThrottle>("StackexchangeThrottle");
var time = UnixEpoch.Now;
if (time < throttle.BackoffUntil)
{
return(new Optional <string>("The server said to backoff for " + (throttle.BackoffUntil - time).ToString() + " more seconds."));
}
else if (throttle.QuotaRemaining == 0 && UnixEpoch.Now < throttle.QuotaResetTime)
{
return(new Optional <string>("You ran out of api requests for today. It will reset at "
+ DateTimeOffset.FromUnixTimeSeconds(throttle.QuotaResetTime) + "."));
}
return(new Optional <string>());
}