/// <summary>
/// Returns the last updated time, null if there has never been an update
/// </summary>
/// <param name="userId"></param>
/// <returns></returns>
public static DateTime?GetLastUpdate(string userId)
{
LastUpdateModel lastUpdate = CosmosDBClient.Query <LastUpdateModel>()
.Where(lu => lu.UserId == userId).Where(lu => lu.Id == GetId(userId)).AsEnumerable().FirstOrDefault();
if (lastUpdate == default(LastUpdateModel))
{
return(null);
}
return(lastUpdate.LastUpdateTime);
}
public static void SetLastUpdate(string userId)
{
LastUpdateModel lastUpdate = new LastUpdateModel(userId);
CosmosDBClient.InsertOrReplace(lastUpdate);
}