How to create plugin for observer Magento 2?

Question

• I have one Observer in my custom module.
• I want to create Plugin for that observer.

How can I achieve that ?

Answer 1

You can right controller or observer path in your di.xml file as per the syntax mention here :

<config>
    <type name="{ObservedType}">
        <plugin name="{pluginName}" type="{PluginClassName}" sortOrder="1" disabled="false"/>
    </type>
</config>

• type name: Enter name of a class or interface that needs to be followed.
• plugin name: An arbitrary plugin name that identifies a plugin. Also used to merge the configurations for the plugin.
• plugin type: Fill the name of a plugin’s class or its virtual type. You can refer the following naming convention for this field: \Vendor\Module\Plugin\Plugin.

Answer 2

Just add to di.xml your plugin.

<type name="Your\Observer\Namespace">
    <plugin name="your_plugin_name" type="Your\Plugin\Class" />
</type>

Then you can create methods like beforeExecute afterExecute etc.