Struct async_graphql::http::WebSocket [−][src]
pub struct WebSocket<S, F, Query, Mutation, Subscription> { /* fields omitted */ }
Expand description
A GraphQL connection over websocket.
Implementations
Create a new websocket with a data initialization function.
This function, if present, will be called with the data sent by the client in the
GQL_CONNECTION_INIT
message.
From that point on the returned data will be accessible to all requests.
impl<S, F, Query, Mutation, Subscription> WebSocket<S, F, Query, Mutation, Subscription> where
S: Stream<Item = Result<ClientMessage>>,
impl<S, F, Query, Mutation, Subscription> WebSocket<S, F, Query, Mutation, Subscription> where
S: Stream<Item = Result<ClientMessage>>,
pub fn with_message_stream(
schema: Schema<Query, Mutation, Subscription>,
stream: S,
data_initializer: F,
protocol: Protocols
) -> Self
pub fn with_message_stream(
schema: Schema<Query, Mutation, Subscription>,
stream: S,
data_initializer: F,
protocol: Protocols
) -> Self
Create a new websocket with a data initialization function from a stream of ClientMessage structs.
This function, if present, will be called with the data sent by the client in the
GQL_CONNECTION_INIT
message.
From that point on the returned data will be accessible to all requests.
Trait Implementations
impl<S, F, R, Query, Mutation, Subscription> Stream for WebSocket<S, F, Query, Mutation, Subscription> where
S: Stream<Item = Result<ClientMessage>>,
F: FnOnce(Value) -> R + Send + 'static,
R: Future<Output = Result<Data>> + Send + 'static,
Query: ObjectType + 'static,
Mutation: ObjectType + 'static,
Subscription: SubscriptionType + 'static,
impl<S, F, R, Query, Mutation, Subscription> Stream for WebSocket<S, F, Query, Mutation, Subscription> where
S: Stream<Item = Result<ClientMessage>>,
F: FnOnce(Value) -> R + Send + 'static,
R: Future<Output = Result<Data>> + Send + 'static,
Query: ObjectType + 'static,
Mutation: ObjectType + 'static,
Subscription: SubscriptionType + 'static,
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
Auto Trait Implementations
impl<S, F, Query, Mutation, Subscription> !RefUnwindSafe for WebSocket<S, F, Query, Mutation, Subscription>
impl<S, F, Query, Mutation, Subscription> Send for WebSocket<S, F, Query, Mutation, Subscription> where
F: Send,
Mutation: Send + Sync,
Query: Send + Sync,
S: Send,
Subscription: Send + Sync,
impl<S, F, Query, Mutation, Subscription> !UnwindSafe for WebSocket<S, F, Query, Mutation, Subscription>
Blanket Implementations
Mutably borrows from an owned value. Read more
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
Creates a future that resolves to the next item in the stream. Read more
Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more
Creates a stream which gives the current iteration count as well as the next value. Read more
Filters the values produced by this stream according to the provided asynchronous predicate. Read more
Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more
Computes from this stream’s items new items of a different type using an asynchronous closure. Read more
Transforms a stream into a collection, returning a future representing the result of that computation. Read more
Converts a stream of pairs into a future, which resolves to pair of containers. Read more
fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
Execute predicate over asynchronous stream, and return true
if any element in stream satisfied a predicate. Read more
Execute predicate over asynchronous stream, and return true
if all element in stream satisfied a predicate. Read more
Flattens a stream of streams into just one continuous stream. Read more
Maps a stream like StreamExt::map
but flattens nested Stream
s. Read more
Combinator similar to StreamExt::fold
that holds internal state
and produces a new stream. Read more
Skip elements on this stream while the provided asynchronous predicate
resolves to true
. Read more
Take elements from this stream while the provided asynchronous predicate
resolves to true
. Read more
Take elements from this stream until the provided future resolves. Read more
Runs this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more
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 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
Creates a new stream of at most n
items of the underlying stream. Read more
Creates a new stream which skips n
items of the underlying stream. Read more
Catches unwinding panics while polling the stream. Read more
Wrap the stream in a Box, pinning it. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,
Wrap the stream in a Box, pinning it. Read more
An adaptor for creating a buffered list of pending futures. Read more
An adaptor for creating a buffered list of pending futures (unordered). Read more
An adapter for zipping two streams together. Read more
Adapter for chaining two streams. Read more
An adaptor for chunking up items of the stream inside a vector. Read more
An adaptor for chunking up ready items of the stream inside a vector. Read more
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
Splits this Stream + Sink
object into separate Sink
and Stream
objects. Read more
Do something with each item of this stream, afterwards passing it on. Read more
Wrap this stream in an Either
stream, making it the left-hand variant
of that Either
. Read more
Wrap this stream in an Either
stream, making it the right-hand variant
of that Either
. Read more
impl<S> StreamExt for S where
S: Stream + ?Sized,
impl<S> StreamExt for S where
S: Stream + ?Sized,
A convenience for calling [Stream::poll_next()
] on !
Unpin
types.
Retrieves the next item in the stream. Read more
Retrieves the next item in the stream. Read more
Maps items of the stream to new values using a closure. Read more
Maps items to streams and then concatenates them. Read more
Maps items of the stream to new values using an async closure. Read more
Keeps items of the stream for which predicate
returns true
. Read more
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>,
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<T>,
Filters and maps items of the stream using a closure. Read more
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
Takes items while predicate
returns true
. Read more
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
Skips items while predicate
returns true
. Read more
fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,
fn chain<U>(self, other: U) -> Chain<Self, U> where
U: Stream<Item = Self::Item>,
Appends another stream to the end of this one. Read more
Clones all items. Read more
Copies all items. Read more
Collects all items in the stream into a collection. Read more
fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C> where
Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>,
fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C> where
Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>,
Collects all items in the fallible stream into a collection. Read more
Partitions items into those for which predicate
is true
and those for which it is
false
, and then collects them into two collections. Read more
Accumulates a computation over the stream. Read more
Accumulates a fallible computation over the stream. Read more
Maps items of the stream to new values using a state value and a closure. Read more
fn fuse(self) -> Fuse<Self>
fn fuse(self) -> Fuse<Self>
Repeats the stream from beginning to end, forever. Read more
Calls a closure on each item and passes it on. Read more
Gets the n
th item of the stream. Read more
Finds the first item of the stream for which predicate
returns true
. Read more
Finds the index of the first item of the stream for which predicate
returns true
. Read more
Tests if predicate
returns true
for all items in the stream. Read more
Tests if predicate
returns true
for any item in the stream. Read more
Calls a closure on each item of the stream. Read more
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F> where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F> where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,
Calls a fallible closure on each item of the stream, stopping on first error. Read more
fn zip<U>(self, other: U) -> Zip<Self, U> where
U: Stream,
fn zip<U>(self, other: U) -> Zip<Self, U> where
U: Stream,
Zips up two streams into a single stream of pairs. Read more
Collects a stream of pairs into a pair of collections. Read more
fn or<S>(self, other: S) -> Or<Self, S> where
S: Stream<Item = Self::Item>,
fn or<S>(self, other: S) -> Or<Self, S> where
S: Stream<Item = Self::Item>,
Merges with other
stream, preferring items from self
whenever both streams are ready. Read more
fn race<S>(self, other: S) -> Race<Self, S> where
S: Stream<Item = Self::Item>,
fn race<S>(self, other: S) -> Race<Self, S> where
S: Stream<Item = Self::Item>,
Merges with other
stream, with no preference for either stream when both are ready. Read more
Boxes the stream and changes its type to dyn Stream + Send + 'a
. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,
Boxes the stream and changes its type to dyn Stream + 'a
. Read more
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more