async Task UnsubscribeAndClose(InfoWebSocketConnection connection)
{
Unsubscribe(connection);
await connection.CloseConnection();
connection.Dispose();
}
public async Task <BaseResponse> HandleCommand(InfoWebSocketConnection infoWebSocket, BaseCommand command)
{
if (!handlers.ContainsKey(command.Command))
{
throw new NotSupportedException($"Command {command.Command} is not supported.");
}
return(await handlers[command.Command].Handle(infoWebSocket, command));
}
/// <summary>
/// Registers new client websocket connection
/// </summary>
/// <param name="webSocket">New websocket connection</param>
public async Task OnNewConnection(WebSocket webSocket, string connectionId, string ip)
{
var connection = new InfoWebSocketConnection(Context, webSocket, connectionId, ip);
Subscribe(connection);
if (!connections.TryAdd(connectionId, connection))
{
throw new Exception($"Connection with id {connectionId} already exists.");
}
await connection.Listen();
}
public override Task <BaseResponse> Handle(InfoWebSocketConnection infoWebSocket, UnsubscribeCommand command)
{
if (command.Subscriptions.Count < 0)
{
throw new BadRequestException("At least one subscription must be specified.");
}
foreach (var subs in command.Subscriptions)
{
var subscription = Context.SubscriptionsManager.GetOrAddSubscription(BaseSubscription.GetBySubscriptionName(subs));
infoWebSocket.RemoveSubsctioption(subscription);
}
return(Task.FromResult((BaseResponse) new SuccesResponse {
RequestId = command.RequestId
}));
}
public override async Task <BaseResponse> Handle(InfoWebSocketConnection infoWebSocket, GetPriceHistoryCommand command)
{
var asset = Context.Constellation.Assets.FirstOrDefault(a => a.Id == command.Market);
if (asset == null && asset.IsXlm)
{
throw new BadRequestException("Invalid market.");
}
var res = await Context.AnalyticsManager.PriceHistoryManager.GetPriceHistory(command.Cursor, command.Market, command.Period);
return(new PriceHistoryResponse {
RequestId = command.RequestId,
PriceHistory = res.frames,
NextCursor = res.nextCursor
});
}
async Task SendSubscriptionUpdate(BaseSubscription subscription, SubscriptionUpdateBase update, InfoWebSocketConnection connection)
{
await connection.SendSubscriptionUpdate(subscription, update);
}
void Unsubscribe(InfoWebSocketConnection connection)
{
connection.OnClosed -= OnClosed;
}
void Subscribe(InfoWebSocketConnection connection)
{
connection.OnClosed += OnClosed;
}
void RemoveConnection(InfoWebSocketConnection connection)
{
_ = UnsubscribeAndClose(connection);
connections.TryRemove(connection.ConnectionId, out _);
}