allTickers method

Stream<List<Ticker>> allTickers()

Reports 24hr miniTicker events every second for every trading pair that changed in the last second

https://github.com/binance-exchange/binance-official-api-docs/blob/master/web-socket-streams.md#all-market-tickers-stream

Implementation

Stream<List<Ticker>> allTickers() {
  final channel = _public('!ticker@arr');

  return channel.stream
      .map<List<Map>>(_toList)
      .map<List<Ticker>>((ev) => ev.map((m) => Ticker.fromMap(m)).toList());
}