public async Task <List <Stock> > GetStockList(string parameters = "")
{
StockData sData = new StockData();
List <Stock> stockList = new List <Stock>();
var message = await ServerResponse();
if (message == "OK")
{
try
{
var result = client.GetStringAsync(TickerUrl).
GetAwaiter().GetResult();
StockRoot stockRoot = JsonConvert
.DeserializeObject <StockRoot>(result);
stockList = new List <Stock>(stockRoot.Stock);
foreach (var item in stockList)
{
item.LastUpdated = stockRoot.LastUpdate;
}
}
catch (Exception e)
{
e.Message.ToString();
stockList = await GetLocalList();
}
}
else
{
stockList = await GetLocalList();
}
stockList = stockList.ToList();
Debug.WriteLine($"Refreshed: { parameters}");
if (parameters == "Volume")
{
return(stockList.OrderByDescending(s => s.Volume).ToList());
}
else if (parameters == "Gainers")
{
return(stockList.OrderByDescending(s => s.PercentChange).ToList());
}
else
{
return(stockList.OrderByDescending(s => s.TradedValue).ToList());
}
}
public async Task <Stock> Stock(string symbol)
{
try
{
var url = $"{TickerUrlStock}{symbol}.json";
var result = client.GetStringAsync(url)
.GetAwaiter().GetResult();
StockRoot sr = JsonConvert
.DeserializeObject <StockRoot>(result);
Stock s = new Stock();
s = sr.Stock.FirstOrDefault();
s.LastUpdated = sr.LastUpdate;
return(s);
}
catch (Exception)
{
var sList = await GetLocalList();
var l = sList.Where(s => s.Symbol == symbol);
return(l.FirstOrDefault());
}
}
public async Task <List <Stock> > GetLocalList()
{
List <Stock> stockList = new List <Stock>();
LocalStorageService storage = new LocalStorageService();
try
{
var result = await storage.ReadText();
StockRoot stockRoot = JsonConvert
.DeserializeObject <StockRoot>(result);
stockList = new List <Stock>(stockRoot.Stock);
foreach (var item in stockList)
{
item.LastUpdated = stockRoot.LastUpdate;
}
}
catch (Exception e)
{
throw;
}
return(stockList);
}
