magento2-simplest-module

Magento2 module basic structure

1 Create namespace folder

/app/code/CosmoCommerce

2 Create module folder

/app/code/CosmoCommerce/Demo

3 Create module config folder

/app/code/CosmoCommerce/Demo/etc

4 Create module registration file

/app/code/CosmoCommerce/Demo/registration.php

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

5 Create module config file

/app/code/CosmoCommerce/Demo/etc/module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/Module/etc/module.xsd">
    <module name="CosmoCommerce_Demo" setup_version="1.0.0">
        <sequence>
            <module name="Magento_Backend"/>
        </sequence>
    </module>
</config>

Code download

https://github.com/cosmocommerce/magento2-simplest-module