How to Create Basic Module in Magento 2

Create the module directory: In your Magento 2 installation, navigate to the app/code directory and create a new directory for your module. For example, let’s call it Lokesh_MyModule

1. Create the module.xml file: Inside the Lokesh_MyModule directory, create a file named module.xml with the following code.

Path :- app/code/Lokesh/MyModule/etc/module.xml

<?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
     <module name="Lokesh_MyModule" setup_version="1.0.0"/>
</config>

In above code, replace Lokesh_MyModule with your vendor and module name you want to use.

Create the registration.php file: Inside the Lokesh_MyModule directory, create a file named registration.php with the following code.

Path :- app/code/Lokesh/MyModule/registration.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Lokesh_MyModule',
    __DIR__
);

Make sure to replace Lokesh_MyModule with your vendor and module name you want to use.

your file structure will look like this:-

├── app
│   └── code 
│        └── Lokesh      <---- VendorName
│            └── MyModule  <-- ModuleName
│                ├── etc
│                │   └──module.xml
│                │
│                └── registration.php
│

Verify the module registration: To ensure that the module is registered correctly, run the following command from your Magento 2 root directory:

php bin/magento module:status

You will see your custom module listed with the status “Enabled: Yes”.
You can also check in the app/etc/config.php file.

Congratulations! You have successfully created a basic Magento 2 module. Now you can proceed with adding more functionality to this module, such as controllers, models, blocks, and templates, depending according to your requirements.

Remember to run the necessary setup and upgrade commands to enable the module:

php bin/magento setup:upgrade
 php bin/magento cache:flush

For more - Adobe official 

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