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Laravel Application Structure Tutorial

Laravel – Application Structure

 


 

 
 

The application structure in Laravel is basically the structure of folders, sub-folders and files included in a project. Once we create a project in Laravel, we get an overview of the application structure as shown in the image here.

The snapshot shown here refers to the root folder of Laravel namely laravel-project. It includes various sub-folders and files. The analysis of folders and files, along with their functional aspects is given below –

Laravel Application Structure

App

 

It is the application folder and includes the entire source code of the project. It contains events, exceptions, and middleware declaration. The app folder comprises various subfolders as explained below –

Console

 

Console includes the artisan commands necessary for Laravel. It includes a directory named Commands, where all the commands are declared with the appropriate signature. The file Kernel.php calls the commands declared in Inspire.php.

Console

If we need to call a specific command in Laravel, then we should make appropriate changes in this directory.

Events

 

This folder includes all the events for the project.

Events

Events are used to trigger activities, raise errors or necessary validations, and provide greater flexibility. Laravel keeps all the events under one directory. The default file included is event.php where all the basic events are declared.

Exceptions

 

This folder contains all the methods needed to handle exceptions. It also contains the file handle.php that handles all the exceptions.

Http

 

The Http folder has sub-folders for controllers, middleware, and application requests. As Laravel follows the MVC design pattern, this folder includes model, controllers and views defined for the specific directories.

The Middleware sub-folder includes middleware mechanism, comprising the filter mechanism and communication between response and request.

The Requests sub-folder includes all the requests of the application.

Jobs

 

The Jobs directory maintains the activities queued for Laravel application. The base class is shared among all the Jobs and provides a central location to place them under one roof.

Listeners

 

Listeners are event-dependent and they include methods that are used to handle events and exceptions. For example, the login event declared includes a LoginListener event.

Policies

 

Policies are the PHP classes which include the authorization logic. Laravel includes a feature to create all authorization logic within policy classes inside this subfolder.

Providers

 

This folder includes all the service providers required to register events for core servers and to configure a Laravel application.

Bootstrap

 

This folder encloses all the application bootstrap scripts. It contains a sub-folder namely cache, which includes all the files associated for caching a web application. You can also find the file app.php, which initializes the scripts necessary for bootstrap.

Config

 

The config folder includes various configurations and associated parameters required for the smooth functioning of a Laravel application. Various files included within the config folder are as shown in the image here. The filenames work as per the functionality associated with them.

Config-folder

Database

 

As the name suggests, this directory includes various parameters for database functionalities. It includes three sub-directories as given below –

  • Seeds – This contains the classes used for unit testing database.

  • Migrations – This folder helps in queries for migrating the database used in the web application.

  • Factories – This folder is used to generate large number of data records.

Public

 

It is the root folder which helps in initializing the Laravel application. It includes the following files and folders –

  • .htaccess – This file gives the server configuration.

  • javascript and CSS – These files are considered as assets.

  • index.php – This file is required for the initialization of a web application.

Resources

 

Resources directory contains the files which enhance your web application. The sub-folders included in this directory and their purpose is explained below –

  • assets – The assets folder include files such as LESS and SCSS, that are required for styling the web application.

  • lang – This folder includes configuration for localization or internalization.

  • views – Views are the HTML files or templates which interact with end-users and play a primary role in MVC architecture.

Observe that the resources directory will be flattened instead of having an assets folder.
The pictorial representation of the same is shown below –

Resource Directory Changes

Storage

 

This is the folder that stores all the logs and necessary files that are needed frequently when a Laravel project is running. The sub-folders included in this directory and their purpose is given below –

  • app – This folder contains the files that are called in succession.

  • framework – It contains sessions, cache, and views which are called frequently.

  • Logs – All exceptions and error logs are tracked in this subfolder.

Tests

 

All the unit test cases are included in this directory. The naming convention for naming test case classes is camel_case and follows the convention as per the functionality of the class.

Vendor

 

Laravel is completely based on Composer dependencies, for example, to install Laravel setup or to include third-party libraries, etc. The Vendor folder includes all the composer dependencies.

In addition to the above-mentioned files, Laravel also includes some other files which play a primary role in various functionalities such as GitHub configuration, packages, and third-party libraries.

The files included in the application structure are shown below –

Files

 
 

 

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