Author: buildbot
Date: Mon May 9 12:19:15 2016
New Revision: 987794
Log:
Production update by buildbot for camel
Modified:
websites/production/camel/content/cache/main.pageCache
websites/production/camel/content/websocket.html
Modified: websites/production/camel/content/cache/main.pageCache
==============================================================================
Binary files - no diff available.
Modified: websites/production/camel/content/websocket.html
==============================================================================
--- websites/production/camel/content/websocket.html (original)
+++ websites/production/camel/content/websocket.html Mon May 9 12:19:15 2016
@@ -89,7 +89,7 @@
<div class="wiki-content maincontent"><h2
id="Websocket-WebsocketComponent">Websocket Component</h2><p><strong>Available
as of Camel 2.10</strong></p><p>The <strong>websocket</strong> component
provides websocket <a shape="rect" href="endpoint.html">endpoints</a> for
communicating with clients using websocket. The component uses Eclipse Jetty
Server which implements the <a shape="rect" class="external-link"
href="http://tools.ietf.org/html/rfc6455"; rel="nofollow">IETF</a> specification
(drafts and RFC 6455). It supports the protocols ws:// and wss://. To use
wss:// protocol, the SSLContextParameters must be defined.</p><div
class="confluence-information-macro
confluence-information-macro-information"><p class="title">Version currently
supported</p><span class="aui-icon aui-icon-small aui-iconfont-info
confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>As Camel 2.10 uses Jetty
7.5.4.v20111024, only the D00 to <a shape="rect" class="external-li
nk" href="http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-13";
rel="nofollow">D13</a> IETF implementations are available.<br clear="none">
Camel 2.11 uses Jetty 7.6.7.</p></div></div><h3 id="Websocket-URIformat">URI
format</h3><div class="code panel pdl" style="border-width: 1px;"><div
class="codeContent panelContent pdl">
<script class="brush: java; gutter: false; theme: Default"
type="syntaxhighlighter"><![CDATA[websocket://hostname[:port][/resourceUri][?options]
]]></script>
-</div></div><p>You can append query options to the URI in the following
format, <code>?option=value&option=value&...</code></p><h3
id="Websocket-ComponentOptions">Component Options</h3><p>The
<code>WebsocketComponent</code> can be configured prior to use, to setup host,
to act as a websocket server.</p><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Option</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Default</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>host</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>0.0.0.0</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>The hostname.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>port</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>9292</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>The p
ort number.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>staticResources</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Path for static resources such as index.html files etc.
If this option has been configured, then a server is started on the given
hostname and port, to service the static resources, eg such as an index.html
file. If this option has not been configured, then no server is
started.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>sslContextParameters</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p> </p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Reference to a
<code>org.apache.camel.util.jsse.SSLContextParameters</code> in the <a
shape="rect" class="external-link"
href="http://camel.apache.org/registry.html";>Registry</a>. This reference
overrides any configured SSLContextParameters at the component level.&
#160; See <a shape="rect" href="camel-configuration-utilities.html">Using the
JSSE Configuration Utility</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>enableJmx</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>If this option is true, Jetty JMX support
will be enabled for this endpoint. See <a shape="rect"
href="#Websocket-JettyJMXsupport">Jetty JMX support</a> for more
details.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>sslKeyPassword</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>: The
password for the keystore when using SSL.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>sslPassword</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code><
/p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Consumer
only</strong>: The password when using SSL.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>sslKeystore</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>:
The path to the keystore.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>minThreads</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>: To set a
value for minimum number of threads in server thread pool. <strong>From Camel
2.18</strong>: MinThreads/MaxThreads or threadPool fields are required due to
switch to Jetty 9</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>maxThreads</code></p></td><td colspan="1"
rowspan="1" class="conf
luenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Consumer only</strong>: To set a value for
maximum number of threads in server thread pool. <strong>From Camel
2.18</strong>: MinThreads/MaxThreads or threadPool fields are required due to
switch to Jetty 9</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>threadPool</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>: To use a
custom thread pool for the server. <strong>From Camel 2.18</strong>:
MinThreads/MaxThreads or threadPool fields are required due to switch to Jetty
9</p></td></tr></tbody></table></div><h3
id="Websocket-EndpointOptions">Endpoint Options</h3><p>The
<code>WebsocketEndpoint</code> can be configured prior to use</p><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1"
rowspan="1" class="confl
uenceTh"><p>Option</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Default</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>sslContextParametersRef</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p> </p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Deprecated and will be removed in
Camel 3.0:</strong> Reference to a
<code>org.apache.camel.util.jsse.SSLContextParameters</code> in the <a
shape="rect" class="external-link"
href="http://camel.apache.org/registry.html";>Registry</a>.  This reference
overrides any configured SSLContextParameters at the component level. See <a
shape="rect" href="camel-configuration-utilities.html">Using the JSSE
Configuration Utility</a>. Use the <code>sslContextParameters</code> option
instead</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>sslContextParameters</p></td><td colspan="1" rowspan="1
" class="confluenceTd"><p> </p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.11.1:</strong> Reference to a
<code>org.apache.camel.util.jsse.SSLContextParameters</code> in the <a
shape="rect" class="external-link"
href="http://camel.apache.org/registry.html";>Registry</a>. This reference
overrides any configured SSLContextParameters at the component level.  See
<a shape="rect" href="camel-configuration-utilities.html">Using the JSSE
Configuration Utility</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>sendToAll</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Producer only:</strong> To send to all
websocket subscribers. Can be used to configure on endpoint level, instead of
having to use the <code>WebsocketConstants.SEND_TO_ALL</code> header on the
message.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p>st
aticResources</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>The root directory for the web resources or classpath.
Use the protocol file: or classpath: depending if you want that the component
loads the resource from file system or classpath.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p> bufferSize</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12.3:</strong>
set the buffer size of the websocketServlet, which is also the max frame byte
size (default 8192)</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>maxIdleTime</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.12.3:</strong> set the time in ms that
the websocket created by the websoc
ketServlet may be idle before closing. (default is
300000)</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>maxTextMessageSize</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.12.3:</strong> can be used to set the
size in characters that the websocket created by the websocketServlet may be
accept before closing.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>maxBinaryMessageSize</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.12.3:</strong> can be used
to set the size in bytes that the websocket created by the websocketServlet may
be accept before closing. (Default is -1 - or unlimited)</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>minVersion</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null
</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.12.3:</strong> can be used to set the
minimum protocol version accepted for the websocketServlet. (Default 13 - the
RFC6455 version)</p></td></tr></tbody></table></div><p> </p><h3
id="Websocket-MessageHeaders">Message Headers</h3><p>The websocket component
uses 2 headers to indicate to either send messages back to a single/current
client, or to all clients.</p><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Key</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1"
class="confluenceTd"><p><code>WebsocketConstants.SEND_TO_ALL</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Sends the message to all
clients which are currently connected. You can use the <code>sendToAll</code>
option on the endpoint instead of using this header.</p></td></tr><tr><td c
olspan="1" rowspan="1"
class="confluenceTd"><p><code>WebsocketConstants.CONNECTION_KEY</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Sends the message to the
client with the given connection key.</p></td></tr></tbody></table></div><h3
id="Websocket-Usage">Usage</h3><p>In this example we let Camel exposes a
websocket server which clients can communicate with. The websocket server uses
the default host and port, which would be <code>0.0.0.0:9292</code>.<br
clear="none"> The example will send back an echo of the input. To send back a
message, we need to send the transformed message to the same endpoint
<code>"websocket://echo"</code>. This is needed<br clear="none"> because by
default the messaging is InOnly.</p><div class="code panel pdl"
style="border-width: 1px;"><div class="codeContent panelContent pdl">
+</div></div><p>You can append query options to the URI in the following
format, <code>?option=value&option=value&...</code></p><h3
id="Websocket-ComponentOptions">Component Options</h3><p>The
<code>WebsocketComponent</code> can be configured prior to use, to setup host,
to act as a websocket server.</p><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Option</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Default</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>host</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>0.0.0.0</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>The hostname.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>port</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>9292</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>The p
ort number.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>staticResources</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Path for static resources such as index.html files etc.
If this option has been configured, then a server is started on the given
hostname and port, to service the static resources, eg such as an index.html
file. If this option has not been configured, then no server is
started.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>sslContextParameters</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p> </p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>Reference to a
<code>org.apache.camel.util.jsse.SSLContextParameters</code> in the <a
shape="rect" class="external-link"
href="http://camel.apache.org/registry.html";>Registry</a>. This reference
overrides any configured SSLContextParameters at the component level.&
#160; See <a shape="rect" href="camel-configuration-utilities.html">Using the
JSSE Configuration Utility</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>enableJmx</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p>If this option is true, Jetty JMX support
will be enabled for this endpoint. See <a shape="rect"
href="#Websocket-JettyJMXsupport">Jetty JMX support</a> for more
details.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>sslKeyPassword</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>: The
password for the keystore when using SSL.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>sslPassword</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code><
/p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Consumer
only</strong>: The password when using SSL.</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>sslKeystore</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>:
The path to the keystore.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>minThreads</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>1</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>: To set a
value for minimum number of threads in server thread pool. <strong>From Camel
2.18</strong>: MinThreads/MaxThreads or threadPool fields are required due to
switch to Jetty 9</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>maxThreads</code></p></td><td colspan="1"
rowspan="1" class="conflue
nceTd"><p><code>1 + noCores * 2<br clear="none"></code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>:
To set a value for maximum number of threads in server thread pool.
<strong>From Camel 2.18</strong>: MinThreads/MaxThreads or threadPool fields
are required due to switch to Jetty 9</p></td></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>threadPool</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Consumer only</strong>:
To use a custom thread pool for the server. <strong>From Camel 2.18</strong>:
MinThreads/MaxThreads or threadPool fields are required due to switch to Jetty
9</p></td></tr></tbody></table></div><h3
id="Websocket-EndpointOptions">Endpoint Options</h3><p>The
<code>WebsocketEndpoint</code> can be configured prior to use</p><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1"
rowspan="1" class="confluenceTh"><p>Option</p></th><th colspan="1"
rowspan="1" class="confluenceTh"><p>Default</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1" class="confluenceTd"><p>sslContextParametersRef</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p> </p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Deprecated and will be removed in
Camel 3.0:</strong> Reference to a
<code>org.apache.camel.util.jsse.SSLContextParameters</code> in the <a
shape="rect" class="external-link"
href="http://camel.apache.org/registry.html";>Registry</a>.  This reference
overrides any configured SSLContextParameters at the component level. See <a
shape="rect" href="camel-configuration-utilities.html">Using the JSSE
Configuration Utility</a>. Use the <code>sslContextParameters</code> option
instead</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>sslContextParameters</p></td><
td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong>
Reference to a <code>org.apache.camel.util.jsse.SSLContextParameters</code> in
the <a shape="rect" class="external-link"
href="http://camel.apache.org/registry.html";>Registry</a>. This reference
overrides any configured SSLContextParameters at the component level.  See
<a shape="rect" href="camel-configuration-utilities.html">Using the JSSE
Configuration Utility</a>.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>sendToAll</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Producer only:</strong> To send to all
websocket subscribers. Can be used to configure on endpoint level, instead of
having to use the <code>WebsocketConstants.SEND_TO_ALL</code> header on the
message.</p></td></tr><tr><td colspan="1" rowspan="1" c
lass="confluenceTd"><p>staticResources</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p>The root directory for the web resources or classpath.
Use the protocol file: or classpath: depending if you want that the component
loads the resource from file system or classpath.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p> bufferSize</p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12.3:</strong>
set the buffer size of the websocketServlet, which is also the max frame byte
size (default 8192)</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>maxIdleTime</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.12.3:</strong> set the time in ms that
the websoc
ket created by the websocketServlet may be idle before closing. (default is
300000)</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>maxTextMessageSize</p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.12.3:</strong> can be used to set the
size in characters that the websocket created by the websocketServlet may be
accept before closing.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p>maxBinaryMessageSize</p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1"
rowspan="1" class="confluenceTd"><p><strong>Camel 2.12.3:</strong> can be used
to set the size in bytes that the websocket created by the websocketServlet may
be accept before closing. (Default is -1 - or unlimited)</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p>minVersion</p></td><td
colspan="1" rowspan="1" class="co
nfluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1"
class="confluenceTd"><p><strong>Camel 2.12.3:</strong> can be used to set the
minimum protocol version accepted for the websocketServlet. (Default 13 - the
RFC6455 version)</p></td></tr></tbody></table></div><p> </p><h3
id="Websocket-MessageHeaders">Message Headers</h3><p>The websocket component
uses 2 headers to indicate to either send messages back to a single/current
client, or to all clients.</p><div class="table-wrap"><table
class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1"
class="confluenceTh"><p>Key</p></th><th colspan="1" rowspan="1"
class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1"
rowspan="1"
class="confluenceTd"><p><code>WebsocketConstants.SEND_TO_ALL</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Sends the message to all
clients which are currently connected. You can use the <code>sendToAll</code>
option on the endpoint instead of using this heade
r.</p></td></tr><tr><td colspan="1" rowspan="1"
class="confluenceTd"><p><code>WebsocketConstants.CONNECTION_KEY</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>Sends the message to the
client with the given connection key.</p></td></tr></tbody></table></div><h3
id="Websocket-Usage">Usage</h3><p>In this example we let Camel exposes a
websocket server which clients can communicate with. The websocket server uses
the default host and port, which would be <code>0.0.0.0:9292</code>.<br
clear="none"> The example will send back an echo of the input. To send back a
message, we need to send the transformed message to the same endpoint
<code>"websocket://echo"</code>. This is needed<br clear="none"> because by
default the messaging is InOnly.</p><div class="code panel pdl"
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