Struct axum_server::Handle

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pub struct Handle { /* private fields */ }
Expand description

A handle for Server.

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impl Handle

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pub fn new() -> Self

Create a new handle.

Examples found in repository?
examples/shutdown.rs (line 16)
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async fn main() {
    let app = Router::new().route("/", get(|| async { "Hello, world!" }));

    let handle = Handle::new();

    // Spawn a task to shutdown server.
    tokio::spawn(shutdown(handle.clone()));

    let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
    println!("listening on {}", addr);
    axum_server::bind(addr)
        .handle(handle)
        .serve(app.into_make_service())
        .await
        .unwrap();

    println!("server is shut down");
}
More examples
Hide additional examples
examples/graceful_shutdown.rs (line 19)
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async fn main() {
    let app = Router::new().route("/", get(|| async { "Hello, world!" }));

    let handle = Handle::new();

    // Spawn a task to gracefully shutdown server.
    tokio::spawn(graceful_shutdown(handle.clone()));

    let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
    println!("listening on {}", addr);
    axum_server::bind(addr)
        .handle(handle)
        .serve(app.into_make_service())
        .await
        .unwrap();

    println!("server is shut down");
}
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pub fn connection_count(&self) -> usize

Get the number of connections.

Examples found in repository?
examples/graceful_shutdown.rs (line 48)
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async fn graceful_shutdown(handle: Handle) {
    // Wait 10 seconds.
    sleep(Duration::from_secs(10)).await;

    println!("sending graceful shutdown signal");

    // Signal the server to shutdown using Handle.
    handle.graceful_shutdown(Some(Duration::from_secs(30)));

    // Print alive connection count every second.
    loop {
        sleep(Duration::from_secs(1)).await;

        println!("alive connections: {}", handle.connection_count());
    }
}
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pub fn shutdown(&self)

Shutdown the server.

Examples found in repository?
examples/shutdown.rs (line 39)
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async fn shutdown(handle: Handle) {
    // Wait 20 seconds.
    sleep(Duration::from_secs(20)).await;

    println!("sending shutdown signal");

    // Signal the server to shutdown using Handle.
    handle.shutdown();
}
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pub fn graceful_shutdown(&self, duration: Option<Duration>)

Gracefully shutdown the server.

None means indefinite grace period.

Examples found in repository?
examples/graceful_shutdown.rs (line 42)
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async fn graceful_shutdown(handle: Handle) {
    // Wait 10 seconds.
    sleep(Duration::from_secs(10)).await;

    println!("sending graceful shutdown signal");

    // Signal the server to shutdown using Handle.
    handle.graceful_shutdown(Some(Duration::from_secs(30)));

    // Print alive connection count every second.
    loop {
        sleep(Duration::from_secs(1)).await;

        println!("alive connections: {}", handle.connection_count());
    }
}
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pub async fn listening(&self) -> Option<SocketAddr>

Returns local address and port when server starts listening.

Returns None if server fails to bind.

Trait Implementations§

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impl Clone for Handle

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fn clone(&self) -> Handle

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Handle

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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 Default for Handle

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fn default() -> Handle

Returns the “default value” for a type. Read more

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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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>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
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>

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