As per official documentation definition of plugin is:<\/p>\n\n\n\n
A plugin, or interceptor, is a class that modifies the behavior of public class functions by intercepting a function call and running code before, after, or around that function call. This allows you to substitute or extend the behavior of original, public methods for any class or interface.<\/p>\n\n\n\n
In simple words a plugin or interceptor is a class that extends the behavior of the original class.<\/p>\n\n\n\n
Plugin only used with \u201cpublic methods\u201d.<\/p>\n\n\n\n
Use of Plugin:<\/strong><\/p>\n\n\n\n Types of Plugin:<\/strong><\/p>\n\n\n\n There are three types of plugin<\/p>\n\n\n\n Let\u2019s discuss All plugin types.<\/p>\n\n\n\n Before Plugin is used when we want to change the argument of the original method, or want to add some behavior before the original method. This method is called with the prefix \u2018before\u2019 with the original method’s first letter in capital.<\/p>\n\n\n\n After Plugin is used when we want to change the argument of the original method, or want to add some behavior before the original method is called. This method is called with the prefix \u2018after\u2019 with the original method’s first letter in capital.<\/p>\n\n\n\n Around Plugin is used to change both arguments and returned values of an original method. It allows overriding a method. This method is called with the prefix \u2018around\u2019 with the original method’s first letter in capital.<\/p>\n\n\n\n Limitation of Plugin:<\/strong><\/p>\n\n\n\n Plugin can not be used with following<\/p>\n\n\n\n Non-Public Methods<\/p>\n\n\n\n Static Methods<\/p>\n\n\n\n Final Methods<\/p>\n\n\n\n Virtual Types<\/p>\n\n\n\n __Construct<\/p>\n\n\n\n Any class that has at least one final public method<\/p>\n\n\n\n Objects that are instantiated before Magento\\Framework\\Interception is bootstrapped <\/p>\n\n\n\n Without wasting your time, let us guide you straight away. Follow the easy step given below to Create Plugin in Magento 2.<\/p>\n\n\n\n Example of All Types of Plugins.<\/p>\n\n\n\n Step 1: Create di.xml file<\/strong><\/p>\n\n\n\n app\/code\/Vendor\/Extension\/etc\/di.xml<\/strong><\/p>\n\n\n Step 2: Create Productqty.php file<\/strong><\/p>\n\n\n\n app\/code\/Vendor\/Extension\/Plugin\/Productqty.php<\/strong><\/p>\n\n\n Using the before plugin when we click on add to cart button product quantity will increase with 3 quantities.<\/p>\n\n\n\n Step 3: Output:<\/strong><\/p>\n\n\n\n Step 1: Create di.xml file<\/strong><\/p>\n\n\n\n app\/code\/Vendor\/Extension\/etc\/di.xml<\/strong><\/p>\n\n\n Step 2: Create Nameadd.php file<\/strong><\/p>\n\n\n\n app\/code\/Vendor\/Extension\/Plugin\/Nameadd.php<\/strong><\/p>\n\n\n Using the after plugin we can add name before product name.<\/p>\n\n\n\n Step 3: Output:<\/strong><\/p>\n\n\n\n Step 1: Create di.xml file<\/strong><\/p>\n\n\n\n app\/code\/Vendor\/Extension\/etc\/di.xml<\/strong><\/p>\n\n\n Step 2: Create Product.php file<\/strong><\/p>\n\n\n\n app\/code\/Vendor\/Extension\/Plugin\/Product.php<\/strong><\/p>\n\n\n Finally run the below commands<\/strong><\/p>\n\n\n So this was the easiest way which we have told you in this blog. This is how you can Create Plugins in Magento 2. Hope you liked the blog.<\/p>\n\n\n\n So quickly go to the comment box and tell me how you like this blog?<\/p>\n\n\n\n Stay tuned with us on our site to get new updates of Magento.<\/strong><\/p>\n\n\n\n Thanks for reading and visiting our site.<\/p>\n\n\n\n
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STEPS FOR CREATE PLUGIN IN MAGENTO 2<\/strong><\/h2>\n\n\n\n
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\n<?xml version="1.0"?>\n<config xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager\/etc\/config.xsd">\n <type name="Magento\\Checkout\\Model\\Cart">\n <plugin name="productqty" type="Vendor\\Extension\\Plugin\\Product Qty" sortOrder="1" \/>\n <\/type>\n<\/config>\n<\/pre><\/div>\n\n\n
\n<?php\nnamespace Vendor\\Extension\\Plugin;\nclass Productqty\n{\n public function beforeAddProduct(\n \\Magento\\Checkout\\Model\\Cart $subject,\n $productInfo,\n $requestInfo = null\n ) {\n $requestInfo['qty'] = 2; \/\/ increasing quantity to 2\n return array($productInfo, $requestInfo);\n }\n}\n<\/pre><\/div>\n\n\n![\"\"](\"https:\/\/magecurious.com\/blog\/wp-content\/uploads\/2023\/12\/image.png\")
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\n<?xml version="1.0"?>\n<config xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager\/etc\/config.xsd">\n <type name="Magento\\Catalog\\Model\\Product">\n <plugin name="nameadd" type="Vendor\\Module\\Plugin\\Nameadd" sortOrder="1" \/>\n <\/type>\n<\/config>\n<\/pre><\/div>\n\n\n
\n<?php\nnamespace Vendor\\Extension\\Plugin;\n\nclass Nameadd\n{\n public function afterGetName(\\Magento\\Catalog\\Model\\Product $subject, $result) {\n return "Magecurious ".$result; \/\/ Magecurious will add before Product Name\n }\n}\n<\/pre><\/div>\n\n\n![\"\"](\"https:\/\/magecurious.com\/blog\/wp-content\/uploads\/2023\/12\/image-1.png\")
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\n<?xml version="1.0"?>\n<config xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager\/etc\/config.xsd">\n <type name="Magento\\Catalog\\Model\\Product">\n <plugin name="addProduct" type="Vendor\\Extension\\Plugin\\Product" sortOrder="1" \/>\n <\/type>\n<\/config>\n<\/pre><\/div>\n\n\n
\n<?php\nnamespace Vendor\\Module\\Plugin;\n\nclass Product\n{\n public function aroundAddProduct(\n \\Magento\\Checkout\\Model\\Cart $subject,\n \\Closure $proceed,\n $productInfo,\n $requestInfo = null\n ) {\n $requestInfo['qty'] = 3; \/\/ Increased quantity to 5\n $result = $proceed($productInfo, $requestInfo);\n \/\/ Apply logic here\n return $result;\n }\n}\n<\/pre><\/div>\n\n\n\n$ php bin\/magento setup:di:compile\n$ php bin\/magento cache:clean\n$ php bin\/magento cache:flush\n<\/pre><\/div>\n\n\n
Final Thoughts:<\/strong><\/h2>\n\n\n\n