Struct Endpoint 

pub struct Endpoint<Side> { /* private fields */ }

Entrypoint for creating client or server connections.

A single endpoint can be used to accept or connect multiple connections. Each endpoint internally binds an UDP socket.

Server

Use Endpoint::server for creating a server-side endpoint. Afterwards use the method Endpoint::accept for awaiting on incoming session request.

use wtransport::Endpoint;

let server = Endpoint::server(config)?;
loop {
    let incoming_session = server.accept().await;
    // Spawn task that handles client incoming session...
}

Client

Use Endpoint::client for creating a client-side endpoint and use Endpoint::connect to connect to a server specifying the URL.

use wtransport::ClientConfig;
use wtransport::Endpoint;

let connection = Endpoint::client(ClientConfig::default())?
    .connect("https://localhost:4433")
    .await?;

Implementations

impl<Side> Endpoint<Side>

pub fn close(&self, error_code: VarInt, reason: &[u8])

Closes all of this endpoint’s connections immediately and cease accepting new connections.

pub async fn wait_idle(&self)

Waits for all connections on the endpoint to be cleanly shut down.

pub fn local_addr(&self) -> Result<SocketAddr>

Gets the local SocketAddr the underlying socket is bound to.

pub fn open_connections(&self) -> usize

Get the number of connections that are currently open.

impl Endpoint<Server>

pub fn server(server_config: ServerConfig) -> Result<Self>

Constructs a server endpoint.

pub async fn accept(&self) -> IncomingSession

Get the next incoming connection attempt from a client.

pub fn reload_config( &self, server_config: ServerConfig, rebind: bool, ) -> Result<()>

Reloads the server configuration.

Useful for e.g. refreshing TLS certificates without disrupting existing connections.

Arguments

• server_config - The new configuration for the server.
• rebind - A boolean indicating whether the server should rebind its socket. If true, the server will bind to a new socket with the provided configuration. If false, the bind address configuration will be ignored.

impl Endpoint<Client>

pub fn client(client_config: ClientConfig) -> Result<Self>

Constructs a client endpoint.

pub async fn connect<O>( &self, options: O, ) -> Result<Connection, ConnectingError>

where O: IntoConnectOptions,

Establishes a WebTransport connection to a specified URL.

This method initiates a WebTransport connection to the specified URL. It validates the URL, and performs necessary steps to establish a secure connection.

Arguments

• options - Connection options specifying the URL and additional headers. It can be simply an URL string representing the WebTransport endpoint to connect to. It must have an https scheme. The URL can specify either an IP address or a hostname. When specifying a hostname, the method will internally perform DNS resolution, configured with ClientConfigBuilder::dns_resolver.

Examples

Connect using a URL with a hostname (DNS resolution is performed):

let url = "https://example.com:4433/webtransport";
let connection = endpoint.connect(url).await?;

Connect using a URL with an IP address:

let url = "https://127.0.0.1:4343/webtransport";
let connection = endpoint.connect(url).await?;

Connect adding an additional header:

let options = ConnectOptions::builder("https://example.com:4433/webtransport")
    .add_header("Authorization", "AuthToken")
    .build();
let connection = endpoint.connect(options).await?;