How to inject and use plugin in zend framework 3 - php

Question

I've a controller Controller\Api\ProductController for rest call and it's defined in module.config.php
'controllers' => [
'factories' => [
Controller\Api\ProductController::class => function($container) {
return new Controller\Api\ProductController(
$container->get(\Commerce\Model\Product::class), $container->get(\Commerce\Controller\Plugin\ProductPlugin::class)
);
}
]
]
In the above code you can see I'm injecting a plugin class \Commerce\Controller\Plugin\ProductPlugin::class which is defined in module.config.php
'controller_plugins' => [
'factories' => [
Controller\Plugin\ProductPlugin::class => InvokableFactory::class,
],
'aliases' => [
'product' => Controller\Plugin\ProductPlugin::class,
]
]
Now when I'm hitting the rest url it shows error message
Unable to resolve service "Commerce\Controller\Plugin\ProductPlugin" to a
factory; are you certain you provided it during configuration?
What I'm missing ?
Plugin code is
<?php
namespace Commerce\Controller\Plugin;
use Zend\Mvc\Controller\Plugin\AbstractPlugin;
class ProductPlugin extends AbstractPlugin
{
//....
}

Answer 1

Controller plugins do not get injected to the controller.
Remove
$container->get(\Commerce\Controller\Plugin\ProductPlugin::class)
from the factory callback and also remove the 2nd parameter from the constructor of your ProductController
To use the plugin, just do:
$plugin = $this->plugin(Plugin\ProductPlugin::class);
or
// using the alias
$plugin = $this->product();
in your action controllers.
https://docs.zendframework.com/zend-mvc/plugins/
Controller plugin example

Answer 2

I'm using a Base controller and I had to inject plugins through dependencies
based on the request.
Above configuration was fine. All I had to do is define my plugin in service_manager section.
'service_manager' => [
'factories' => [
Controller\Plugin\ProductPlugin::class => function($sm) {
$dependencies = /////
$model = new \Commerce\Model\Product($dependencies);
return new Controller\Plugin\ProductPlugin($model);
},
\Commerce\Model\Product::class => function($sm) {
$dependencies = /////
return new \Commerce\Model\Product($dependencies);
}
],
],