Utility methods to create StreamTransfomer
instances to manipulate Streams.
Like asyncMap
but events are buffered in a List until previous events have been processed rather than being called for each element individually.
Like asyncMap
but events are discarded, keeping only the latest, until previous events have been processed rather than being called for every element.
Like where
but allows an asynchronous predicate.
Audit waits for a period of time after receiving a value and then only emits the most recent value.
Collects values from a source stream until a trigger
stream fires and the collected values are emitted.
Combine the most recent event from two streams through a callback and emit the result.
Combines the latest events emitted from multiple source streams and yields a list of the values.
Prevents a source stream from emitting too frequently by dropping or collecting values that occur within a given duration.
Like asyncMap
but the convert callback can be called with subsequent values before it has finished for previous values.
Appends the values of a stream after another stream finishes.
Interleaves events from multiple streams into a single stream.
Scan is like fold, but instead of producing a single value it yields each intermediate accumulation.
Prepend a value, an iterable, or a stream to the beginning of another stream.
Flatten a Stream of Streams into a Stream which forwards values from the most recent Stream
Let values through until a Future fires.
Taps into a single-subscriber stream to react to values as they pass, without being a real subscriber.
Blocks events for a duration after an event is successfully emitted.
Like Iterable.whereType
for a stream.