asyncMap<E> method

  1. @override
ObservableStream<E> asyncMap<E>(
  1. FutureOr<E> convert(
    1. T event
    )
)
override

Creates a new stream with each data event of this stream asynchronously mapped to a new event.

This acts like map, in that convert function is called once per data event, but here convert may be asynchronous and return a Future. If that happens, this stream waits for that future to complete before continuing with further events.

The returned stream is a broadcast stream if this stream is.

Implementation

@override
ObservableStream<E> asyncMap<E>(FutureOr<E> Function(T event) convert) =>
    _wrap(_controller.stream.asyncMap(convert));