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//
// ============LICENSE_START=======================================================
// Copyright (C) 2016-2018 Ericsson. All rights reserved.
// ================================================================================
// This file is licensed under the CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE
// Full license text at https://creativecommons.org/licenses/by/4.0/legalcode
//
// SPDX-License-Identifier: CC-BY-4.0
// ============LICENSE_END=========================================================
//
// @author Sven van der Meer (sven.van.der.meer@ericsson.com)
//
== Websockets
Websocket is a protocol to run sockets of HTTP.
Since it in essence a socket, the connection is realized between a server (waiting for connections) and a client (connecting to a server).
Server/client separation is only important for connection establishment, once connected, everyone can send/receive on the same socket (as any standard socket would allow).
Standard Websocket implementations are simple, no publish/subscribe and no special event handling.
Most servers simply send all incoming messages to all connections.
There is a PubSub definition on top of Websocket called link:http://wamp-proto.org/[WAMP].
APEX does not support WAMP at the moment.
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