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= gun_up(3)
== Name
gun_up - The connection is up
== Description
[source,erlang]
----
{gun_up, ConnPid, Protocol}
ConnPid :: pid()
Protocol :: http | http2 | socks
----
The connection is up.
This message informs the owner process that the connection or
reconnection completed.
If Gun is configured to connect to a Socks server, then the
connection is not usable yet. One or more
link:man:gun_tunnel_up(3)[gun_tunnel_up(3)] messages will follow.
Otherwise, Gun will start processing the messages it received while
waiting for the connection to be up. If this is a reconnection,
then this may not be desirable for all requests. Those requests
should be cancelled when the connection goes down, and any
subsequent messages ignored.
== Elements
ConnPid::
The pid of the Gun connection process.
Protocol::
The protocol selected for this connection. It can be used
to determine the capabilities of the server.
== Changelog
* *1.0*: Message introduced.
== Examples
.Receive a gun_up message in a gen_server
[source,erlang]
----
handle_info({gun_up, ConnPid, _Protocol},
State=#state{conn_pid=ConnPid}) ->
%% Do something.
{noreply, State}.
----
== See also
link:man:gun(3)[gun(3)],
link:man:gun:open(3)[gun:open(3)],
link:man:gun:open_unix(3)[gun:open_unix(3)],
link:man:gun:await_up(3)[gun:await_up(3)],
link:man:gun_tunnel_up(3)[gun_tunnel_up(3)],
link:man:gun_down(3)[gun_down(3)],
link:man:gun_error(3)[gun_error(3)]
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