Update User Guide

guide/index.rst

@@ -7,6 +7,11 @@ One
 Aplus Framework One Project.
 
 - `Installation`_
+- `Structure`_
+- `Configuration`_
+- `Routing`_
+- `Running`_
+- `Conclusion`_
 
 Installation
 ------------
@@ -16,3 +21,78 @@ The installation of this project can be done with Composer:
 .. code-block::
 
     composer create-project aplus/one:dev-master
+
+or with the `Aplus Command Line Tool <https://docs.aplus-framework.com/guides/aplus/index.html>`_:
+
+.. code-block::
+
+    aplus new-one
+
+Structure
+---------
+
+Project One has a minimalistic structure, with an index.php file being the only,
+or main, application file.
+
+With just one file it is possible to create a simple website or a microservice.
+
+It shows the versatility of how it is possible to structure an application with
+the Aplus Framework.
+
+This is the basic directory tree:
+
+.. code-block::
+
+    .
+    ├── composer.json
+    ├── preload.php
+    ├── public/
+    │         └── index.php
+    ├── storage/
+    │         └── logs/
+    ├── tests/
+    └── vendor/
+
+And remember, it's highly customizable. You can adapt it as you like.
+
+Configuration
+-------------
+
+The application's configurations are set directly in the App class constructor,
+where, by default, only two services are set; the **exceptionHandler** and the
+**logger**. Which shows a beautiful page when exceptions are thrown and is also
+able to save logs in the ``storage/logs`` directory.
+
+Routing
+-------
+
+The routing is defined directly in the index.php file, as it is expected not to
+contain too many lines. By default, only the route with the root path of the URL
+is set, and also a customization in the Error 404 page. Both return a closure
+with an array to be JSON-encoded.
+
+Running
+-------
+
+Finally, the application will respond to HTTP requests. As per the last line of
+the index.php file:
+
+.. code-block:: php
+
+    $app->runHttp();
+
+If the application also responds from the command line, it is possible to use
+the ``run`` method and, if it is only for the command line; ``runCli``.
+
+Conclusion
+----------
+
+Aplus One Project is an easy-to-use tool for, beginners and experienced, PHP developers. 
+It is perfect for creating simple, high-performance applications. 
+The more you use it, the more you will learn.
+
+.. note::
+    Did you find something wrong? 
+    Be sure to let us know about it with an
+    `issue <https://gitlab.com/aplus-framework/projects/one/issues>`_. 
+    Thank you!