private static IEnumerable <YammerMessage> PullSentMessages(YammerSession session, DateTime startDate)
{
bool hasNext = true;
int lastMessageId = 0;
while (hasNext)
{
var result = session.Messages.GetSentAsync(OlderThan: lastMessageId, Threaded: YammerMessages.Threaded.Extended, Limit: 100).Result;
var references = result.references.ToLookup(p => p.id);
hasNext = result.messages.Any();
foreach (var message in result.messages)
{
var sender = references[message.sender_id].First().name;
lastMessageId = (int)message.id;
var createdAtString = message.GetPathValue("created_at", String.Empty);
var createdAt = DateTime.Parse(createdAtString);
if (createdAt < startDate)
{
hasNext = false;
}
yield return(new YammerMessage(message.body.plain, sender, createdAt));
}
}
}
public IEnumerable <YammerMessage> PullData(DateTime startFilterDate, DateTime endFilterDate)
{
var config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
var userTokenConfig = config.AppSettings.Settings["YammerSession.UserToken"];
var userToken = userTokenConfig != null ? userTokenConfig.Value : String.Empty;
var session = new YammerSession(userToken);
bool isSessionValid = false;
if (!String.IsNullOrWhiteSpace(userToken))
{
try
{
// test the token...
session.Users.GetCurrentUserAsync().Wait();
isSessionValid = true;
}
catch (AggregateException)
{
Console.WriteLine("Session token invalid");
}
}
if (!isSessionValid)
{
session = YammerAPI.LoginUserAsync("1GpcB6wgI9wqp8hB17PA", "R33cc1KWZ3uy6juE5DeNHWQKMjqzU3e7nvYkPLREeM", "http://qe");
config.AppSettings.Settings.Remove("YammerSession.UserToken");
config.AppSettings.Settings.Add("YammerSession.UserToken", session.UserToken);
config.Save(ConfigurationSaveMode.Full);
ConfigurationManager.RefreshSection("appSettings");
}
Console.WriteLine("Session token: " + session.UserToken);
return(PullSentMessages(session, startFilterDate).Where(p => p.CreatedAt >= startFilterDate && p.CreatedAt <= endFilterDate).ToList());
}