public async Task <List <KeyValuePair <string, double> > > GetStockPrices(List <KeyValuePair <string, int> > stocks)
{
string apiKey = "O8UW3NE3Z3CEYSVB"; // API KEY
var client = new AlphaVantageStocksClient(apiKey);
//This list will contain the stocks' symbols and the prices
List <KeyValuePair <string, double> > stocksAndPrice = new List <KeyValuePair <string, double> >();
string[] stockSymbols = new string[stocks.Count];
for (int i = 0; i < stocks.Count; i++)
{
stockSymbols[i] = stocks[i].Key;
}
// retrieve stocks batch quotes for Apple Inc. and Facebook Inc.:
ICollection <StockQuote> batchQuotes = await client.RequestBatchQuotesAsync(stockSymbols);
foreach (var stockQuote in batchQuotes)
{
stocksAndPrice.Add(new KeyValuePair <string, double>(stockQuote.Symbol, (double)stockQuote.Price));
Console.WriteLine($"{stockQuote.Symbol}: {stockQuote.Price}");
}
return(stocksAndPrice);
}
public async Task RequestBatchQuotesAsync_Test()
{
var client = new AlphaVantageStocksClient(ApiKey);
var result =
await client.RequestBatchQuotesAsync(new [] { "AAPL", "FB", "MSFT" });
Assert.NotNull(result);
Assert.Equal(3, result.Count);
Assert.True(
result.Any(r => r.Symbol == "MSFT") &&
result.Any(r => r.Symbol == "FB") &&
result.Any(r => r.Symbol == "AAPL"));
}
public async static Task <IEnumerable <StockQuote> > GetQuotes(params string[] symbols)
{
var avClient = new AlphaVantageStocksClient(API_KEY_ALPHA_VANTAGE);
return(await avClient.RequestBatchQuotesAsync(symbols));
}