Function http_connect 

pub async fn http_connect<IO, Input, BodyConnection>(
    io: IO,
    input: Input,
    exec: Executor,
) -> Result<EstablishedClientConnection<HttpClientService<BodyConnection>, Input>, OpaqueError>
where
    IO: Io + Unpin + ExtensionsRef,
    Input: AuthorityInputExt + ExtensionsRef + HttpVersionInputExt + TargetHttpVersionInputExt + Send + 'static,
    BodyConnection: Body + Unpin + Send + 'static,
    <BodyConnection as Body>::Data: Send + 'static,
    <BodyConnection as Body>::Error: Into<Box<dyn Error + Send + Sync>>,

Available on crate features dns and http-backend and http and std and tcp only.

Establish an HTTP connection on the pre-established IO (bytes) stream.

The input is returned unchanged and only needs to expose the target HTTP version, authority and connection-scoped extensions. It does not need to be an HTTP request and may instead be a protocol-independent connection input such as rama_net::client::ConnectRequest.

The spawned HTTP connection span is connection-scoped and can serve many requests, so request fields such as method, URI and user agent belong on request spans rather than this connection span.