Utility methods to create StreamTransfomer instances to manipulate Streams.

asyncMapBuffer

Like asyncMap but events are buffered in a List until previous events have been processed rather than being called for each element individually.

asyncMapSample

Like asyncMap but events are discarded, keeping only the latest, until previous events have been processed rather than being called for every element.

asyncWhere

Like where but allows an asynchronous predicate.

audit

Audit waits for a period of time after receiving a value and then only emits the most recent value.

buffer

Collects values from a source stream until a trigger stream fires and the collected values are emitted.

combineLatest

Combine the most recent event from two streams through a callback and emit the result.

combineLatestAll

Combines the latest events emitted from multiple source streams and yields a list of the values.

debounce, debounceBuffer

Prevents a source stream from emitting too frequently by dropping or collecting values that occur within a given duration.

concurrentAsyncMap

Like asyncMap but the convert callback can be called with subsequent values before it has finished for previous values.

followedBy

Appends the values of a stream after another stream finishes.

merge, mergeAll

Interleaves events from multiple streams into a single stream.

scan

Scan is like fold, but instead of producing a single value it yields each intermediate accumulation.

startWith, startWithMany, startWithStream

Prepend a value, an iterable, or a stream to the beginning of another stream.

switchMap, switchLatest

Flatten a Stream of Streams into a Stream which forwards values from the most recent Stream

takeUntil

Let values through until a Future fires.

tap

Taps into a single-subscriber stream to react to values as they pass, without being a real subscriber.

throttle

Blocks events for a duration after an event is successfully emitted.

whereType

Like Iterable.whereType for a stream.

Libraries

stream_transform