= gun_inform(3)

== Name

gun_inform - Informational response

== Description

[source,erlang]
----
{gun_inform, ConnPid, StreamRef, Status, Headers}

ConnPid   :: pid()
StreamRef :: gun:stream_ref()
Status    :: 100..199
Headers   :: [{binary(), binary()}]
----

Informational response.

This message informs the relevant process that the server
sent an informational response to the original request.

Informational responses are only intermediate responses
and provide no guarantees as to what the final response
will be. An informational response always precedes the
response to the original request.

== Elements

ConnPid::

The pid of the Gun connection process.

StreamRef::

Identifier of the stream for the original request.

Status::

Status code for the informational response.

Headers::

Headers sent with the informational response.

== Changelog

* *1.0*: Message introduced.

== Examples

.Receive a gun_inform message in a gen_server
[source,erlang]
----
handle_info({gun_inform, ConnPid, _StreamRef,
             _Status, _Headers},
            State=#state{conn_pid=ConnPid}) ->
    %% Do something.
    {noreply, State}.
----

== See also

link:man:gun(3)[gun(3)],
link:man:gun:get(3)[gun:get(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_response(3)[gun_response(3)]