pub struct Builder<I, E = Exec> { /* private fields */ }
Expand description

A builder for a Server.

Implementations

Start a new builder, wrapping an incoming stream and low-level options.

For a more convenient constructor, see Server::bind.

Sets whether to use keep-alive for HTTP/1 connections.

Default is true.

Set whether HTTP/1 connections should support half-closures.

Clients can chose to shutdown their write-side while waiting for the server to respond. Setting this to true will prevent closing the connection immediately if read detects an EOF in the middle of a request.

Default is false.

Set the maximum buffer size.

Default is ~ 400kb.

Set whether HTTP/1 connections should try to use vectored writes, or always flatten into a single buffer.

Note that setting this to false may mean more copies of body data, but may also improve performance when an IO transport doesn’t support vectored writes well, such as most TLS implementations.

Setting this to true will force hyper to use queued strategy which may eliminate unnecessary cloning on some TLS backends

Default is auto. In this mode hyper will try to guess which mode to use

Set whether HTTP/1 connections will write header names as title case at the socket level.

Note that this setting does not affect HTTP/2.

Default is false.

Set whether to support preserving original header cases.

Currently, this will record the original cases received, and store them in a private extension on the Request. It will also look for and use such an extension in any provided Response.

Since the relevant extension is still private, there is no way to interact with the original cases. The only effect this can have now is to forward the cases in a proxy-like fashion.

Note that this setting does not affect HTTP/2.

Default is false.

Set a timeout for reading client request headers. If a client does not transmit the entire header within this time, the connection is closed.

Default is None.

Sets whether HTTP/1 is required.

Default is false.

Sets the Executor to deal with connection tasks.

Default is tokio::spawn.

Consume this Builder, creating a Server.

Example
use hyper::{Body, Error, Response, Server};
use hyper::service::{make_service_fn, service_fn};

// Construct our SocketAddr to listen on...
let addr = ([127, 0, 0, 1], 3000).into();

// And a MakeService to handle each connection...
let make_svc = make_service_fn(|_| async {
    Ok::<_, Error>(service_fn(|_req| async {
        Ok::<_, Error>(Response::new(Body::from("Hello World")))
    }))
});

// Then bind and serve...
let server = Server::bind(&addr)
    .serve(make_svc);

// Run forever-ish...
if let Err(err) = server.await {
    eprintln!("server error: {}", err);
}

Set the duration to remain idle before sending TCP keepalive probes.

If None is specified, keepalive is disabled.

Set the duration between two successive TCP keepalive retransmissions, if acknowledgement to the previous keepalive transmission is not received.

Set the number of retransmissions to be carried out before declaring that remote end is not available.

Set the value of TCP_NODELAY option for accepted connections.

Set whether to sleep on accept errors.

A possible scenario is that the process has hit the max open files allowed, and so trying to accept a new connection will fail with EMFILE. In some cases, it’s preferable to just wait for some time, if the application will likely close some files (or connections), and try to accept the connection again. If this option is true, the error will be logged at the error level, since it is still a big deal, and then the listener will sleep for 1 second.

In other cases, hitting the max open files should be treat similarly to being out-of-memory, and simply error (and shutdown). Setting this option to false will allow that.

For more details see AddrIncoming::set_sleep_on_errors

Trait Implementations

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Auto Trait Implementations

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