= gun:stream_info(3)

== Name

gun:stream_info - Obtain information about a stream

== Description

[source,erlang]
----
stream_info(ConnPid, StreamRef) -> {ok, undefined | Info} | {error, not_connected}

ConnPid :: pid()
StreamRef :: gun:stream_ref()
Info :: #{
    ref            => gun:stream_ref(),
    reply_to       => pid(),
    state          => running | stopping,
    intermediaries => [Intermediary],
    tunnel         => Tunnel
}
Intermediary :: #{
    type      => connect | socks5,
    host      => inet:hostname() | inet:ip_address(),
    port      => inet:port_number(),
    transport => tcp | tls,
    protocol  => http | http2 | socks | raw
}
Tunnel :: #{
    transport     => tcp | tls,
    protocol      => http | http2 | socks | raw,
    origin_scheme => binary() | undefined,
    origin_host   => inet:hostname() | inet:ip_address(),
    origin_port   => inet:port_number()
}
----

Obtain information about a stream.

== Arguments

ConnPid::

The pid of the Gun connection process.

StreamRef::

Identifier of the stream for the original request.

== Return value

A map is returned containing various informations about
the stream.

== Changelog

* *2.0*: Function introduced.

== Examples

.Obtain information about a stream
[source,erlang]
----
Info = gun:stream_info(ConnPid, StreamRef).
----

== See also

link:man:gun(3)[gun(3)],
link:man:gun:get(3)[gun:get(3)],
link:man:gun:head(3)[gun:head(3)],
link:man:gun:options(3)[gun:options(3)],
link:man:gun:patch(3)[gun:patch(3)],
link:man:gun:post(3)[gun:post(3)],
link:man:gun:put(3)[gun:put(3)],
link:man:gun:delete(3)[gun:delete(3)],
link:man:gun:headers(3)[gun:headers(3)],
link:man:gun:request(3)[gun:request(3)],
link:man:gun:cancel(3)[gun:cancel(3)]