How can you configure routes for such a structure.

First off you need to add the Modules an all the other directories to the PSR4 
in  ./application/autoload.php

Something like this, just an Example.

PHP Code:

$psr4 = [
        'Config'      => APPPATH . 'Config',
        APP_NAMESPACE => APPPATH,                    // For custom namespace
        'App'         => APPPATH,                    // To ensure filters, etc still found,
        'Modules'     => ROOTPATH.'Modules',        // Modules Location
        'Shop'          => ROOTPATH.'Modules/Shop',    // Shop location
        'Blog'          => ROOTPATH.'Modules/Blog',    // Blog Location
        'Forum'          => ROOTPATH.'Modules/Forum',    // Forum Location
        ]; 


In your routes file use the namespace where your modules etc are.

What did you Try? What did you Get? What did you Expect?

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