private async Task <IObservable <object> > Subscribe(FellowLibrary.Crawler.MarketProvidersConfiguration configuration,
ResolveEventStreamContext context)
{
if (context == null)
{
throw new ArgumentNullException();
}
var marketProvider = context.GetArgument <int?>("marketProvider");
if (!marketProvider.HasValue)
{
throw new ArgumentNullException();
}
var marketProviderConfiguration = configuration.FirstOrDefault(x => x.ID == marketProvider.Value);
if (marketProviderConfiguration == null)
{
throw new ArgumentException();
}
var tradingPair = context.GetArgument <String>("tradingPair");
if (String.IsNullOrEmpty(tradingPair))
{
throw new ArgumentNullException();
}
IObservable <object> observable = await FellowLibrary.Crawler.TradeEntrySubscription.Start(marketProviderConfiguration, tradingPair);
return(observable);
}
public MarketFellowSubscription(FellowLibrary.Crawler.MarketProvidersConfiguration configuration)
{
FieldSubscribeAsync <TradeEntryType>("tradeEntry",
resolve: context => context.Source as FellowLibrary.Models.TradeEntry,
subscribeAsync: context => Subscribe(configuration, context),
arguments: new QueryArguments(new QueryArgument <IntGraphType>()
{
Name = "marketProvider"
},
new QueryArgument <StringGraphType>()
{
Name = "tradingPair"
})
);
}
public MarketFellowQuery(DatabaseContext storeProvider, HttpClient httpClient, FellowLibrary.Crawler.MarketProvidersConfiguration marketProviderConfiguration)
{
Field <ListGraphType <MarketProviderType> >("marketProviders",
resolve: context => marketProviderConfiguration.Select(x => new FellowLibrary.Models.MarketProvider()
{
ID = x.ID, Name = x.Name
}));
FieldAsync <ListGraphType <TradingPairType> >("tradingPairs",
arguments: new QueryArguments(new QueryArgument <IntGraphType>()
{
Name = "marketProvider"
}),
resolve: context => GetTradingPairs(httpClient, marketProviderConfiguration, context));
Field <ListGraphType <TradeEntryType> >("tradingEntries",
arguments: new QueryArguments(new QueryArgument <IntGraphType>()
{
Name = "marketProvider"
},
new QueryArgument <StringGraphType>()
{
Name = "tradingPair"
}),
resolve: context => GetTradeEntries(storeProvider, context));
}
