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| <h1 class="post-title-main">Manage connections</h1> |
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| <p>In order to manage (CRUD) connections in Ditto <a href="installation-operating.html#devops-commands">DevOps commands</a> |
| have to be used. There is no separate HTTP API for managing the connections, as this is not a task for a developer using |
| the digital twin APIs but more for a “DevOps engineer” creating new connections to external systems.</p> |
| |
| <p>All connection related piggyback commands use the following HTTP endpoint:</p> |
| |
| <div class="highlighter-rouge"><div class="highlight"><pre class="highlight"><code>POST /devops/piggyback/connectivity |
| </code></pre></div></div> |
| |
| <h2 id="authorization">Authorization</h2> |
| |
| <p>When creating new connections, an <code class="highlighter-rouge">authorizationContext</code> is needed providing the <em>authorization subjects</em> (e.g. IDs of authorized users) to use in order to determine the permissions for when the connection executes commands (e.g. modifying a Thing). |
| If you want to use a user for the basic auth (from the <a href="connectivity-protocol-bindings-http.html">HTTP API</a>) use the prefix <code class="highlighter-rouge">nginx:</code>, e.g. <code class="highlighter-rouge">nginx:ditto</code>. |
| See <a href="basic-auth.html#authorization-context-in-devops-commands">Basic Authentication</a> for more information.</p> |
| |
| <h2 id="crud-commands">CRUD commands</h2> |
| |
| <p>The following commands are available in order to manage connections:</p> |
| |
| <ul> |
| <li><a href="#create-connection">create</a></li> |
| <li><a href="#modify-connection">modify</a></li> |
| <li><a href="#retrieve-connection">retrieve</a></li> |
| <li><a href="#delete-connection">delete</a></li> |
| </ul> |
| |
| <h3 id="create-connection">Create connection</h3> |
| |
| <p>Create a new connection by sending the following DevOps command:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:createConnection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connection"</span><span class="p">:</span><span class="w"> </span><span class="p">{}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <p>The content of the connection configuration object is specified in the <a href="basic-connections.html">Connections section</a>. |
| For protocol specific examples, consult the <a href="connectivity-protocol-bindings-amqp091.html">AMQP-0.9.1 binding</a>, |
| <a href="connectivity-protocol-bindings-amqp10.html">AMQP-1.0 binding</a> or |
| <a href="connectivity-protocol-bindings-mqtt.html">MQTT-3.1.1 binding</a> respectively.</p> |
| |
| <h3 id="modify-connection">Modify connection</h3> |
| |
| <p>Modify an existing connection by sending the following DevOps command:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:modifyConnection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connection"</span><span class="p">:</span><span class="w"> </span><span class="p">{}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <p>The connection with the specified ID needs to be created before one can modify it.</p> |
| |
| <h3 id="retrieve-connection">Retrieve connection</h3> |
| |
| <p>The only parameter necessary for retrieving a connection is the <code class="highlighter-rouge">connectionId</code>:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:retrieveConnection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="open-connection">Open connection</h3> |
| |
| <p>The only parameter necessary for opening a connection is the <code class="highlighter-rouge">connectionId</code>:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:openConnection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="close-connection">Close connection</h3> |
| |
| <p>The only parameter necessary for closing a connection is the <code class="highlighter-rouge">connectionId</code>:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:closeConnection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="delete-connection">Delete connection</h3> |
| |
| <p>The only parameter necessary for deleting a connection is the <code class="highlighter-rouge">connectionId</code>:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:deleteConnection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h2 id="helper-commands">Helper commands</h2> |
| |
| <p>The following commands are available to help creating connections and retrieving the status of existing connections:</p> |
| |
| <ul> |
| <li><a href="#test-connection">test</a></li> |
| <li><a href="#retrieve-connection-status">retrieve connection status</a></li> |
| <li><a href="#retrieve-connection-metrics">retrieve connection metrics</a></li> |
| <li><a href="#reset-connection-metrics">reset connection metrics</a></li> |
| <li><a href="#enable-connection-logs">enable connection logs</a></li> |
| <li><a href="#retrieve-connection-logs">retrieve connection logs</a></li> |
| <li><a href="#reset-connection-logs">reset connection logs</a></li> |
| </ul> |
| |
| <h3 id="test-connection">Test connection</h3> |
| |
| <p>Run a test connection command before creating a persisted connection to validate the connection configuration. This |
| command checks the configuration and establishes a connection to the remote endpoint in order to validate the connection |
| credentials. The test connection is closed afterwards and will not be persisted. Analog to the <a href="#create-connection">createConnection</a> |
| command, it requires a full connection configuration in the piggyback command.</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:testConnection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connection"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="err">...</span><span class="w"> </span><span class="err">//Define</span><span class="w"> </span><span class="err">connection</span><span class="w"> </span><span class="err">configuration</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="retrieve-connection-status">Retrieve connection status</h3> |
| |
| <p>This command returns the connection status by showing if a connection is currently enabled/disabled and if it is |
| successfully established. The only parameter necessary for retrieving the connection status is the <code class="highlighter-rouge">connectionId</code>:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:retrieveConnectionStatus"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="retrieve-connection-metrics">Retrieve connection metrics</h3> |
| |
| <p>This command returns the connection metrics showing how many messages have been successfully or failingly <code class="highlighter-rouge">conusmed</code>, |
| <code class="highlighter-rouge">filtered</code>, <code class="highlighter-rouge">mapped</code>, <code class="highlighter-rouge">published</code>, <code class="highlighter-rouge">dropped</code>. The metrics are collected and returned in different time intervals:</p> |
| <ul> |
| <li>the last minute</li> |
| <li>the last hour</li> |
| <li>the last 24 hours</li> |
| </ul> |
| |
| <p>The only parameter necessary for retrieving the connection metrics is the <code class="highlighter-rouge">connectionId</code>:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:retrieveConnectionMetrics"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="reset-connection-metrics">Reset connection metrics</h3> |
| |
| <p>This command resets the connection metrics - all metrics are set to <code class="highlighter-rouge">0</code> again. The only parameter |
| necessary for retrieving the connection metrics is the <code class="highlighter-rouge">connectionId</code>:</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:resetConnectionMetrics"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="enable-connection-logs">Enable connection logs</h3> |
| |
| <p>Enables the connection logging feature of a connection for 24 hours. |
| As soon as connection logging is enabled, you will be able to <a href="#retrieve-connection-logs">retrieve connection logs</a>. The |
| logs will contain a fixed amount of success and failure logs for each source and target of your connection and correlate |
| with the metrics of the connection. This will allow you more insight in what goes well, and more importantly, what goes wrong.</p> |
| |
| <p>The default duration and the maximum amount of logs stored for one connection can be configured in Ditto’s connectivity service |
| configuration.</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:enableConnectionLogs"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="retrieve-connection-logs">Retrieve connection logs</h3> |
| |
| <p>This command will return a list of success and failure log entries containing information on messages processed by the |
| connection. The logs have a maximum amount of entries that they can hold. If the connection produces more log entries, |
| the older entries will be dropped. So keep in mind that you might miss some of the log entries.</p> |
| |
| <p>The response will also provide information on how long the logging feature will still be enabled. Since the timer will |
| always be reset when retrieving the logs, the timestamp will always be 24 hours from now.</p> |
| |
| <p>The default duration and the maximum amount of logs stored for one connection can be configured in Ditto’s connectivity service |
| configuration.</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:retrieveConnectionLogs"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h3 id="reset-connection-logs">Reset connection logs</h3> |
| |
| <p>Clears all currently stored connection logs.</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| |
| </span><span class="s2">"targetActorSelection"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/system/sharding/connection"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"aggregate"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"piggybackCommand"</span><span class="p">:{</span><span class="w"> |
| </span><span class="s2">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.commands:resetConnectionLogs"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"connectionId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"<connectionID>"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <h2 id="payload-mapping-configuration">Payload mapping configuration</h2> |
| |
| <p>To enable a custom <a href="connectivity-mapping.html">payload mapping</a> for a specific source or target of a connection, you |
| have to configure a payload mapping definition in the connection configuration object. The following snippet shows an |
| example <code class="highlighter-rouge">mappingDefinitions</code>. This configuration must be embedded in the connection configuration as shown in the |
| <a href="basic-connections.html">Connections</a> section. These payload mapping definitions are then referenced by its ID |
| (the key of the JSON object) in the sources and targets of the connection using the field <code class="highlighter-rouge">payloadMapping</code>. |
| If no payload mapping or definition is provided, the <a href="connectivity-mapping.html#ditto-mapper">Ditto message mapping</a> |
| is used as the default.</p> |
| |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="err">...</span><span class="w"> |
| </span><span class="s2">"mappingDefinitions"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"customJs"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="err">//</span><span class="w"> </span><span class="err">(</span><span class="mi">1</span><span class="err">)</span><span class="w"> |
| </span><span class="s2">"mappingEngine"</span><span class="p">:</span><span class="w"> </span><span class="s2">"JavaScript"</span><span class="p">,</span><span class="w"> </span><span class="err">//</span><span class="w"> </span><span class="err">(</span><span class="mi">2</span><span class="err">)</span><span class="w"> |
| </span><span class="s2">"options"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="err">//</span><span class="w"> </span><span class="err">(</span><span class="mi">3</span><span class="err">)</span><span class="w"> |
| </span><span class="s2">"incomingScript"</span><span class="p">:</span><span class="w"> </span><span class="s2">".."</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"outgoingScript"</span><span class="p">:</span><span class="w"> </span><span class="s2">".."</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="s2">"sources"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="w"> |
| </span><span class="p">{</span><span class="w"> |
| </span><span class="s2">"addresses"</span><span class="p">:</span><span class="w"> </span><span class="s2">"source"</span><span class="p">,</span><span class="w"> |
| </span><span class="s2">"payloadMapping"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="s2">"customJs"</span><span class="p">]</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">]</span><span class="w"> |
| </span><span class="err">...</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <ul> |
| <li>(1) This ID can be used in sources and targets of the connection to reference this payload mapping definition.</li> |
| <li>(2) The <code class="highlighter-rouge">mappingEngine</code> defines the underlying <code class="highlighter-rouge">MessageMapper</code> implementation.</li> |
| <li>(3) The <code class="highlighter-rouge">options</code> are used to configure the mapper instance to your needs.</li> |
| </ul> |
| |
| |
| <div class="tags"> |
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| <b>Tags: </b> |
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