Struct aws_smithy_async::future::fn_stream::TryFlatMap

pub struct TryFlatMap<I>(_);

Utility wrapper to flatten paginated results

When flattening paginated results, it’s most convenient to produce an iterator where the Result is present in each item. This provides items() which can wrap an stream of Result<Page, Err> and produce a stream of Result<Item, Err>.

Implementations

impl<I> TryFlatMap<I>

pub fn new(i: I) -> Self

Create a TryFlatMap that wraps the input

pub fn flat_map<M, Item, Iter, Page, Err>(
    self,
    map: M
) -> impl Stream<Item = Result<Item, Err>>where
    I: Stream<Item = Result<Page, Err>>,
    M: Fn(Page) -> Iter,
    Iter: IntoIterator<Item = Item>,

Produce a new [Stream] by mapping this stream with map then flattening the result

Trait Implementations

impl<I: Debug> Debug for TryFlatMap<I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.