NAME

POE::Component::Client::WebSocket - A POE compatible websocket client

VERSION

Version 0.29

WARNING: Work in progress! Only uploaded early for testing purposes!

This module appears to work perfectly, however its not really been tested that much and I will be amazed if there are not bugs.

SYNOPSIS

    #!/usr/bin/env perl

    use warnings;
    use strict;

    use POE qw(Component::Client::WebSocket);

    POE::Session->create(
        inline_states => {
            _start => sub {
                my $ws = POE::Component::Client::WebSocket->new('wss://echo.websocket.org');
                $ws->handler('connected','connected');
                $ws->connect;

                $_[HEAP]->{ws} = $ws;

                $_[KERNEL]->yield("next")
            },
            next   => sub {
                $_[KERNEL]->delay(next => 1);
            },
            websocket_read => sub {
                my ($kernel,$read) = @_[KERNEL,ARG0];

                print "Read: $read\n";
           },
           websocket_disconnected => sub {
                warn "Disconnected";
           },
           connected => sub {
                my $req = $_[ARG0];
           },
           websocket_handshake => sub {
                my $res = $_[ARG0];

                $_[KERNEL]->post( $_[SENDER]->ID, 'send', 1234 );

                $_[HEAP]->{ws}->send(5678);
           },
        },
    );

    POE::Kernel->run();
    exit;

SUBROUTINES/METHODS

new

Create a new object, takes 1 argument.. a fully qualified websocket URI.

Default handlers and arguments

All of these can be changed with the 'handler' function, note the 'event key'.

read (websocket_read)

event key: read default handler: websocket_read

Data that has been read and decoded from the server.

disconnected (websocket_disconnected)

event key: disconnected default handler: websocket_disconnected

Called when the websocket is disconnected.

connected (websocket_connected)

event key: connected default handler: websocket_connected

Called when the websocket is connected (before the handshake) ARG0 contains the HTTP::Request sent.

handshake (websocket_handshake)

event key: handshake default handler: websocket_handshake

Called when the socket handshake is completed, ARG0 contains the HTTP::Response from the server.

error (websocket_error)

event key: error default handler: websocket_error

Called when an error is retrieved, this is a bit vague at the moment ARG0 should contain something.

OOP mappings from obj to POE

These can be called with a standard POE style POST or directly from the object (see SYNOPSIS for examples of both)

connect

Start the connection

handler

Adjust the handlers events are sent to

origin

Change the origin from the automatically generated one to something else.

parent

Override the 'send to' parent for the module, by default this is the module that the component was started from.

send

Send data to the server, arguments are: 1: 'data' the information you want to send. 2: 'type' the type of information to send (default 'text') 3: 'fin' wether to send the 'fin' flag (default 1) 4: 'masked' wether the frame should be masked (default 0)

Internal functions (do not call these directly)

_start

Initial start handler

_stop

Default stop handler for tidying things up

_keep_alive

Do not allow the module to stop running

_connect

Initate a connect to the websocket

_handler

Adjust the distribution map for handlers

_origin

Change the origin used in the opening handshake

_parent

Change the currently targeted session to communicate events with.

_send

Send a frame encoded request to the server

_socket_birth

Handle a socket when it connects to something

_socket_death

Handle a socket when it is disconnected

_socket_input

Read data from the socket

AUTHOR

Paul G Webster, <daemon at cpan.org>

Contributors

Tom Ryder C << anonymous@while.verifying >>

BUGS

Please report any bugs or feature requests to https://github.com/PaulGWebster/POE-Component-Client-Websocket

SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc POE::Component::Client::WebSocket

You can also look for information at:

ACKNOWLEDGEMENTS

LICENSE AND COPYRIGHT

Copyright 2021 Paul G Webster.

This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:

http://www.perlfoundation.org/artistic_license_2_0

Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.

If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.

This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.

This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.

Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.