public async Task StartPolling(CancellationToken cancellationToken, IEnumerable <string> selectedItems)
{
MainWindow mainwindow = (MainWindow)Application.Current.MainWindow;
mainwindow.CollectionGrid.Items.Clear();
MostRecentListing.RootObject currentListings = await GetRecentListingsAsync();
MostRecentListing.RootObject outdatedListings = null;
var ListingsToCheck = currentListings.Payload.SellOrders.Take(25).ToList();
await Task.Delay(1000);
while (!cancellationToken.IsCancellationRequested)
{
await GetSellOrdersAsnyc(ListingsToCheck, selectedItems, cancellationToken);
await Task.Delay(_pollDelay);
outdatedListings = currentListings;
currentListings = await GetRecentListingsAsync();
ListingsToCheck = currentListings.Payload.SellOrders
.Take(300)
.Where(d => outdatedListings.Payload.SellOrders
.Take(300)
.All(t => t.Id != d.Id))
.ToList();
}
}
public async Task <MostRecentListing.RootObject> GetRecentListingsAsync()
{
string data = await Request.GetAsync("https://api.warframe.market/v1/most_recent");
MostRecentListing.RootObject rootobject =
JsonConvert.DeserializeObject <MostRecentListing.RootObject>(data);
return(rootobject);
}