Struct tonic::Streaming

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pub struct Streaming<T> { /* private fields */ }

Expand description

Streaming requests and responses.

This will wrap some inner Body and Decoder and provide an interface to fetch the message stream and trailing metadata

Implementations

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impl<T> Streaming<T>

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pub async fn message(&mut self) -> Result<Option<T>, Status>

Fetch the next message from this stream.

if let Some(next_message) = request.message().await? {
    println!("{:?}", next_message);
}

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pub async fn trailers(&mut self) -> Result<Option<MetadataMap>, Status>

Fetch the trailing metadata.

This will drain the stream of all its messages to receive the trailing metadata. If Streaming::message returns None then this function will not need to poll for trailers since the body was totally consumed.

if let Some(metadata) = request.trailers().await? {
    println!("{:?}", metadata);
}

Trait Implementations

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impl<T> Debug for Streaming<T>

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

Formats the value using the given formatter. Read more

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impl<T> Stream for Streaming<T>

type Item = Result<T, Status>

Values yielded by the stream.

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fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more

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fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream. Read more

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impl<T> Unpin for Streaming<T>

Auto Trait Implementations

impl<T> !RefUnwindSafe for Streaming<T>

impl<T> Send for Streaming<T>

impl<T> !Sync for Streaming<T>

impl<T> !UnwindSafe for Streaming<T>

Blanket Implementations

impl<T> Any for Twhere
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<K, S, E, D> Discover for Dwhere
D: TryStream<Ok = Change<K, S>, Error = E> + ?Sized,
K: Eq,

type Key = K

A unique identifier for each active service. Read more

type Service = S

The type of Service yielded by this Discover. Read more

type Error = E

Error produced during discovery

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fn poll_discover(
self: Pin<&mut D>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<D as TryStream>::Ok, <D as TryStream>::Error>>>

Yields the next discovery change set.

impl<T> From<T> for T

const: unstable

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into for Twhere
U: From<T>,

const: unstable

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

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impl<T> StreamExt for Twhere
T: Stream + ?Sized,

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fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,

Creates a future that resolves to the next item in the stream. Read more

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fn into_future(self) -> StreamFuture<Self>where
Self: Unpin,

Converts this stream into a future of (next_item, tail_of_stream). If the stream terminates, then the next item is [None]. Read more

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fn map<T, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> T,

Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more

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fn enumerate(self) -> Enumerate<Self>

Creates a stream which gives the current iteration count as well as the next value. Read more

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fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

Filters the values produced by this stream according to the provided asynchronous predicate. Read more

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fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,

Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more

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fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

Computes from this stream’s items new items of a different type using an asynchronous closure. Read more

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fn collect<C>(self) -> Collect<Self, C>where
C: Default + Extend<Self::Item>,

Transforms a stream into a collection, returning a future representing the result of that computation. Read more

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fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>where
 FromA: Default + Extend<A>,
 FromB: Default + Extend,
 Self: Stream<Item = (A, B)>,

Converts a stream of pairs into a future, which resolves to pair of containers. Read more

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fn concat(self) -> Concat<Self>where
Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default,

Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more

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fn count(self) -> Count<Self>

Drives the stream to completion, counting the number of items. Read more

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fn cycle(self) -> Cycle<Self>where
Self: Clone,

Repeats a stream endlessly. Read more

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fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>where
F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,

Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more

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fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

Execute predicate over asynchronous stream, and return true if any element in stream satisfied a predicate. Read more

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fn all<Fut, F>(self, f: F) -> All<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

Execute predicate over asynchronous stream, and return true if all element in stream satisfied a predicate. Read more

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fn flatten(self) -> Flatten<Self>where
Self::Item: Stream,

Flattens a stream of streams into just one continuous stream. Read more

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fn flatten_unordered(
 self,
 limit: impl Into<Option<usize>>
) -> FlattenUnorderedWithFlowController<Self, ()>where
 Self::Item: Stream + Unpin,

Flattens a stream of streams into just one continuous stream. Polls inner streams produced by the base stream concurrently. Read more

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fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
F: FnMut(Self::Item) -> U,
U: Stream,

Maps a stream like StreamExt::map but flattens nested Streams. Read more

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fn flat_map_unordered<U, F>(
 self,
 limit: impl Into<Option<usize>>,
 f: F
) -> FlatMapUnordered<Self, U, F>where
 U: Stream + Unpin,
 F: FnMut(Self::Item) -> U,

Maps a stream like StreamExt::map but flattens nested Streams and polls them concurrently, yielding items in any order, as they made available. Read more

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fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>where
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option>,

Combinator similar to StreamExt::fold that holds internal state and produces a new stream. Read more

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fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more

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fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

Take elements from this stream while the provided asynchronous predicate resolves to true. Read more

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fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>where
Fut: Future,

Take elements from this stream until the provided future resolves. Read more

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fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,

Runs this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more

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fn for_each_concurrent<Fut, F>(
 self,
 limit: impl Into<Option<usize>>,
 f: F
) -> ForEachConcurrent<Self, Fut, F>where
 F: FnMut(Self::Item) -> Fut,
 Fut: Future<Output = ()>,

Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more

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fn take(self, n: usize) -> Take<Self>

Creates a new stream of at most n items of the underlying stream. Read more

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fn skip(self, n: usize) -> Skip<Self>

Creates a new stream which skips n items of the underlying stream. Read more

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fn fuse(self) -> Fuse<Self>

Fuse a stream such that poll_next will never again be called once it has finished. This method can be used to turn any Stream into a FusedStream. Read more

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fn by_ref(&mut self) -> &mut Self

Borrows a stream, rather than consuming it. Read more

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fn catch_unwind(self) -> CatchUnwind<Self>where
Self: UnwindSafe,

Catches unwinding panics while polling the stream. Read more

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fn boxed<'a>(
 self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>ⓘNotable traits for Pin`impl Future for Pinwhere P: DerefMut, ::Target: Future, type Output = <::Target as Future>::Output;`where
 Self: 'a + Send,

Wrap the stream in a Box, pinning it. Read more

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fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>ⓘNotable traits for Pin`impl Future for Pinwhere P: DerefMut, ::Target: Future, type Output = <::Target as Future>::Output;`where
Self: 'a,

Wrap the stream in a Box, pinning it. Read more

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fn buffered(self, n: usize) -> Buffered<Self>where
Self::Item: Future,

An adaptor for creating a buffered list of pending futures. Read more

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fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>where
Self::Item: Future,

An adaptor for creating a buffered list of pending futures (unordered). Read more

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fn zip<St>(self, other: St) -> Zip<Self, St>where
St: Stream,

An adapter for zipping two streams together. Read more

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fn chain<St>(self, other: St) -> Chain<Self, St>where
St: Stream<Item = Self::Item>,

Adapter for chaining two streams. Read more

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fn peekable(self) -> Peekable<Self>

Creates a new stream which exposes a peek method. Read more

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fn chunks(self, capacity: usize) -> Chunks<Self>

An adaptor for chunking up items of the stream inside a vector. Read more

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fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>

An adaptor for chunking up ready items of the stream inside a vector. Read more

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fn forward<S>(self, sink: S) -> Forward<Self, S>where
S: Sink<Self::Ok, Error = Self::Error>,
Self: TryStream,

A future that completes after the given stream has been fully processed into the sink and the sink has been flushed and closed. Read more

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fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)where
Self: Sink<Item>,

Splits this Stream + Sink object into separate Sink and Stream objects. Read more

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fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),

Do something with each item of this stream, afterwards passing it on. Read more

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fn left_stream(self) -> Either<Self, B>where
B: Stream<Item = Self::Item>,

Wrap this stream in an Either stream, making it the left-hand variant of that Either. Read more

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fn right_stream(self) -> Either<B, Self>where
B: Stream<Item = Self::Item>,

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more

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fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,

A convenience method for calling Stream::poll_next on [Unpin] stream types. Read more

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fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,

Returns a [Future] that resolves when the next item in this stream is ready. Read more

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impl<St> StreamExt for Stwhere
St: Stream + ?Sized,

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fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,

Consumes and returns the next value in the stream or None if the stream is finished. Read more

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fn try_next<T, E>(&mut self) -> TryNext<'_, Self>where
Self: Stream<Item = Result<T, E>> + Unpin,

Consumes and returns the next item in the stream. If an error is encountered before the next item, the error is returned instead. Read more

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fn map<T, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> T,

Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more

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fn map_while<T, F>(self, f: F) -> MapWhile<Self, F>where
F: FnMut(Self::Item) -> Option<T>,

Map this stream’s items to a different type for as long as determined by the provided closure. A stream of the target type will be returned, which will yield elements until the closure returns None. Read more

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fn then<F, Fut>(self, f: F) -> Then<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

Maps this stream’s items asynchronously to a different type, returning a new stream of the resulting type. Read more

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fn merge(self, other: U) -> Merge<Self, U>where
U: Stream<Item = Self::Item>,

Combine two streams into one by interleaving the output of both as it is produced. Read more

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fn filter<F>(self, f: F) -> Filter<Self, F>where
F: FnMut(&Self::Item) -> bool,

Filters the values produced by this stream according to the provided predicate. Read more

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fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<T>,

Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided closure. Read more

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fn fuse(self) -> Fuse<Self>

Creates a stream which ends after the first None. Read more

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fn take(self, n: usize) -> Take<Self>

Creates a new stream of at most n items of the underlying stream. Read more

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fn take_while<F>(self, f: F) -> TakeWhile<Self, F>where
F: FnMut(&Self::Item) -> bool,

Take elements from this stream while the provided predicate resolves to true. Read more

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fn skip(self, n: usize) -> Skip<Self>

Creates a new stream that will skip the n first items of the underlying stream. Read more

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fn skip_while<F>(self, f: F) -> SkipWhile<Self, F>where
F: FnMut(&Self::Item) -> bool,

Skip elements from the underlying stream while the provided predicate resolves to true. Read more

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fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,

Tests if every element of the stream matches a predicate. Read more

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fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,

Tests if any element of the stream matches a predicate. Read more

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fn chain(self, other: U) -> Chain<Self, U>where
U: Stream<Item = Self::Item>,

Combine two streams into one by first returning all values from the first stream then all values from the second stream. Read more

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fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F>where
F: FnMut(B, Self::Item) -> B,

A combinator that applies a function to every element in a stream producing a single, final value. Read more

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fn collect<T>(self) -> Collect<Self, T>where
T: FromStream<Self::Item>,

Drain stream pushing all emitted values into a collection. Read more

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fn timeout(self, duration: Duration) -> Timeout<Self>

Applies a per-item timeout to the passed stream. Read more

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fn timeout_repeating(self, interval: Interval) -> TimeoutRepeating<Self>

Applies a per-item timeout to the passed stream. Read more

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fn throttle(self, duration: Duration) -> Throttle<Self>

Slows down a stream by enforcing a delay between items. Read more

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fn chunks_timeout(
 self,
 max_size: usize,
 duration: Duration
) -> ChunksTimeout<Self>

Batches the items in the given stream using a maximum duration and size for each batch. Read more

impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<S, T, E> TryStream for Swhere
S: Stream<Item = Result<T, E>> + ?Sized,

type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

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fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

Poll this TryStream as if it were a Stream. Read more

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impl<S> TryStreamExt for Swhere
S: TryStream + ?Sized,

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fn err_into<E>(self) -> ErrInto<Self, E>where
Self::Error: Into<E>,

Wraps the current stream in a new stream which converts the error type into the one provided. Read more

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fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>where
F: FnMut(Self::Ok) -> T,

Wraps the current stream in a new stream which maps the success value using the provided closure. Read more

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fn map_err<E, F>(self, f: F) -> MapErr<Self, F>where
F: FnMut(Self::Error) -> E,

Wraps the current stream in a new stream which maps the error value using the provided closure. Read more

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fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,

Chain on a computation for when a value is ready, passing the successful results to the provided closure f. Read more

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fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,

Chain on a computation for when an error happens, passing the erroneous result to the provided closure f. Read more

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fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>where
F: FnMut(&Self::Ok),

Do something with the success value of this stream, afterwards passing it on. Read more

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fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where
F: FnMut(&Self::Error),

Do something with the error value of this stream, afterwards passing it on. Read more

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fn into_stream(self) -> IntoStream<Self>

Wraps a TryStream into a type that implements Stream Read more

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fn try_next(&mut self) -> TryNext<'_, Self>where
Self: Unpin,

Creates a future that attempts to resolve the next item in the stream. If an error is encountered before the next item, the error is returned instead. Read more

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fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more

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fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F>where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more

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fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F>where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

Take elements on this stream while the provided asynchronous predicate resolves to true. Read more

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fn try_for_each_concurrent<Fut, F>(
 self,
 limit: impl Into<Option<usize>>,
 f: F
) -> TryForEachConcurrent<Self, Fut, F>where
 F: FnMut(Self::Ok) -> Fut,
 Fut: Future<Output = Result<(), Self::Error>>,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available, exiting as soon as an error occurs. Read more

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fn try_collect<C>(self) -> TryCollect<Self, C>where
C: Default + Extend<Self::Ok>,

Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more

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fn try_chunks(self, capacity: usize) -> TryChunks<Self>

An adaptor for chunking up successful items of the stream inside a vector. Read more

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fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F>where
Fut: Future<Output = bool>,
F: FnMut(&Self::Ok) -> Fut,

Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more

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fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F>where
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
F: FnMut(Self::Ok) -> Fut,

Attempt to filter the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more

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fn try_flatten_unordered(
 self,
 limit: impl Into<Option<usize>>
) -> TryFlattenUnordered<Self>where
 Self::Ok: TryStream + Unpin,
 <Self::Ok as TryStream>::Error: From<Self::Error>,

Flattens a stream of streams into just one continuous stream. Produced streams will be polled concurrently and any errors will be passed through without looking at them. If the underlying base stream returns an error, it will be immediately propagated. Read more

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fn try_flatten(self) -> TryFlatten<Self>where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,

Flattens a stream of streams into just one continuous stream. Read more

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fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>where
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,

Attempt to execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more

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fn try_concat(self) -> TryConcat<Self>where
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item> + IntoIterator + Default,

Attempt to concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more

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fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>where
Self::Ok: TryFuture<Error = Self::Error>,

Attempt to execute several futures from a stream concurrently (unordered). Read more

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fn try_buffered(self, n: usize) -> TryBuffered<Self>where
Self::Ok: TryFuture<Error = Self::Error>,

Attempt to execute several futures from a stream concurrently. Read more

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fn try_poll_next_unpin(
 &mut self,
 cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>>where
 Self: Unpin,

A convenience method for calling TryStream::try_poll_next on [Unpin] stream types. Read more

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fn into_async_read(self) -> IntoAsyncRead<Self>where
Self: TryStreamExt<Error = Error>,
Self::Ok: AsRef<[u8]>,

Adapter that converts this stream into an AsyncBufRead. Read more

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T>where T: Future, type Output = <T as Future>::Output;`where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

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fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T>where T: Future, type Output = <T as Future>::Output;`

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T>where T: Future, type Output = <T as Future>::Output;`where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

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fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>`impl<T> Future for WithDispatch<T>where T: Future, type Output = <T as Future>::Output;`

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Struct tonic::Streaming

Implementations

impl<T> Streaming<T>

pub async fn message(&mut self) -> Result<Option<T>, Status>

pub async fn trailers(&mut self) -> Result<Option<MetadataMap>, Status>

Trait Implementations

impl<T> Debug for Streaming<T>

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

impl<T> Stream for Streaming<T>

type Item = Result<T, Status>

fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>

fn size_hint(&self) -> (usize, Option<usize>)

impl<T> Unpin for Streaming<T>

Auto Trait Implementations

impl<T> !RefUnwindSafe for Streaming<T>

impl<T> Send for Streaming<T>

impl<T> !Sync for Streaming<T>

impl<T> !UnwindSafe for Streaming<T>

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<K, S, E, D> Discover for Dwhere D: TryStream<Ok = Change<K, S>, Error = E> + ?Sized, K: Eq,

type Key = K

type Service = S

type Error = E

fn poll_discover( self: Pin<&mut D>, cx: &mut Context<'_>) -> Poll<Option<Result<<D as TryStream>::Ok, <D as TryStream>::Error>>>

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;

fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;

fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> StreamExt for Twhere T: Stream + ?Sized,

fn next(&mut self) -> Next<'_, Self>where Self: Unpin,

fn into_future(self) -> StreamFuture<Self>where Self: Unpin,

fn map<T, F>(self, f: F) -> Map<Self, F>where F: FnMut(Self::Item) -> T,

fn enumerate(self) -> Enumerate<Self>

fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = Option<T>>,

fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future,

fn collect<C>(self) -> Collect<Self, C>where C: Default + Extend<Self::Item>,

fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Stream<Item = (A, B)>,

fn concat(self) -> Concat<Self>where Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default,

fn count(self) -> Count<Self>

fn cycle(self) -> Cycle<Self>where Self: Clone,

fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>where F: FnMut(T, Self::Item) -> Fut, Fut: Future<Output = T>,

fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>,

fn all<Fut, F>(self, f: F) -> All<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>,

fn flatten(self) -> Flatten<Self>where Self::Item: Stream,

fn flatten_unordered( self, limit: impl Into<Option<usize>>) -> FlattenUnorderedWithFlowController<Self, ()>where Self::Item: Stream + Unpin,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where F: FnMut(Self::Item) -> U, U: Stream,

fn flat_map_unordered<U, F>( self, limit: impl Into<Option<usize>>, f: F) -> FlatMapUnordered<Self, U, F>where U: Stream + Unpin, F: FnMut(Self::Item) -> U,

fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>where F: FnMut(&mut S, Self::Item) -> Fut, Fut: Future<Output = Option<B>>,

fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>where Fut: Future,

fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>,

fn for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F) -> ForEachConcurrent<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>,

fn take(self, n: usize) -> Take<Self>

fn skip(self, n: usize) -> Skip<Self>

fn fuse(self) -> Fuse<Self>

fn by_ref(&mut self) -> &mut Self

fn catch_unwind(self) -> CatchUnwind<Self>where Self: UnwindSafe,

fn boxed<'a>( self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>ⓘNotable traits for Pin<P>impl<P> Future for Pin<P>where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;where Self: 'a + Send,

fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>ⓘNotable traits for Pin<P>impl<P> Future for Pin<P>where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;where Self: 'a,

fn buffered(self, n: usize) -> Buffered<Self>where Self::Item: Future,

fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>where Self::Item: Future,

fn zip<St>(self, other: St) -> Zip<Self, St>where St: Stream,

fn chain<St>(self, other: St) -> Chain<Self, St>where St: Stream<Item = Self::Item>,

fn peekable(self) -> Peekable<Self>

fn chunks(self, capacity: usize) -> Chunks<Self>

fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>

fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<K, S, E, D> Discover for Dwhere
D: TryStream<Ok = Change<K, S>, Error = E> + ?Sized,
K: Eq,

fn poll_discover(
self: Pin<&mut D>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<D as TryStream>::Ok, <D as TryStream>::Error>>>

fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>`impl<T> Future for Instrumented<T>where T: Future, type Output = <T as Future>::Output;`

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> StreamExt for Twhere
T: Stream + ?Sized,

fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,

fn into_future(self) -> StreamFuture<Self>where
Self: Unpin,

fn map<T, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> T,

fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,

fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

fn collect<C>(self) -> Collect<Self, C>where
C: Default + Extend<Self::Item>,

fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,

fn concat(self) -> Concat<Self>where
Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default,

fn cycle(self) -> Cycle<Self>where
Self: Clone,

fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>where
F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,

fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn all<Fut, F>(self, f: F) -> All<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn flatten(self) -> Flatten<Self>where
Self::Item: Stream,

fn flatten_unordered(
self,
limit: impl Into<Option<usize>>
) -> FlattenUnorderedWithFlowController<Self, ()>where
Self::Item: Stream + Unpin,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
F: FnMut(Self::Item) -> U,
U: Stream,

fn flat_map_unordered<U, F>(
self,
limit: impl Into<Option<usize>>,
f: F
) -> FlatMapUnordered<Self, U, F>where
U: Stream + Unpin,
F: FnMut(Self::Item) -> U,

fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>where
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option<B>>,

fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>where
Fut: Future,

fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,

fn for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F
) -> ForEachConcurrent<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,

fn catch_unwind(self) -> CatchUnwind<Self>where
Self: UnwindSafe,

fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>ⓘNotable traits for Pin<P>`impl<P> Future for Pin<P>where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;`where
Self: 'a + Send,

fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>ⓘNotable traits for Pin<P>`impl<P> Future for Pin<P>where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;`where
Self: 'a,

fn buffered(self, n: usize) -> Buffered<Self>where
Self::Item: Future,

fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>where
Self::Item: Future,

fn zip<St>(self, other: St) -> Zip<Self, St>where
St: Stream,

fn chain<St>(self, other: St) -> Chain<Self, St>where
St: Stream<Item = Self::Item>,

fn forward<S>(self, sink: S) -> Forward<Self, S>where
S: Sink<Self::Ok, Error = Self::Error>,
Self: TryStream,

fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)where
Self: Sink<Item>,

fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),

fn left_stream<B>(self) -> Either<Self, B>where
B: Stream<Item = Self::Item>,

fn right_stream<B>(self) -> Either<B, Self>where
B: Stream<Item = Self::Item>,

fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,

fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,

impl<St> StreamExt for Stwhere
St: Stream + ?Sized,

fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,

fn try_next<T, E>(&mut self) -> TryNext<'_, Self>where
Self: Stream<Item = Result<T, E>> + Unpin,

fn map<T, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> T,

fn map_while<T, F>(self, f: F) -> MapWhile<Self, F>where
F: FnMut(Self::Item) -> Option<T>,

fn then<F, Fut>(self, f: F) -> Then<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

fn merge<U>(self, other: U) -> Merge<Self, U>where
U: Stream<Item = Self::Item>,

fn filter<F>(self, f: F) -> Filter<Self, F>where
F: FnMut(&Self::Item) -> bool,

fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<T>,

fn take_while<F>(self, f: F) -> TakeWhile<Self, F>where
F: FnMut(&Self::Item) -> bool,

fn skip_while<F>(self, f: F) -> SkipWhile<Self, F>where
F: FnMut(&Self::Item) -> bool,

fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,

fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,

fn chain<U>(self, other: U) -> Chain<Self, U>where
U: Stream<Item = Self::Item>,

fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F>where
F: FnMut(B, Self::Item) -> B,

fn collect<T>(self) -> Collect<Self, T>where
T: FromStream<Self::Item>,

fn chunks_timeout(
self,
max_size: usize,
duration: Duration
) -> ChunksTimeout<Self>

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

impl<S, T, E> TryStream for Swhere
S: Stream<Item = Result<T, E>> + ?Sized,

fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

impl<S> TryStreamExt for Swhere
S: TryStream + ?Sized,

fn err_into<E>(self) -> ErrInto<Self, E>where
Self::Error: Into<E>,

fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>where
F: FnMut(Self::Ok) -> T,

fn map_err<E, F>(self, f: F) -> MapErr<Self, F>where
F: FnMut(Self::Error) -> E,

fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,

fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,

fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>where
F: FnMut(&Self::Ok),

fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where
F: FnMut(&Self::Error),

fn try_next(&mut self) -> TryNext<'_, Self>where
Self: Unpin,

fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,