update api:2.2 notice -> now Request+Response class doc done

notice/api/2.2.md

@@ -52,8 +52,8 @@ The aim of this package is to make your life easier working with APIs or interna
 
 Things you have to do :
 - implement your processes (obviously)
-- implement your authentication system (cf. [AuthSystem](#3-authsysten))
+- implement your authentication system (cf. [AuthSystem](#1-permissions--authsystem))
-- edit the configuration file (cf. [configuration](#3---configuration))
+- edit the configuration file (cf. [configuration](#iii-configuration))
 
 Things you **don't have** to do :
 - input type check (cf. [Checker](#4-checker))
@@ -92,8 +92,8 @@ If you want to delete the article of id `52`, you must request `article/delete`
 > ## **1** Setup
 
 In order to make the API work, you have to :
-1. Edit the configuration file according to your needs (cf. [configuration](#3---configuration))
+1. Edit the configuration file according to your needs (cf. [configuration](#iii-configuration))
-2. Implement the Authentication System to manage permissions (cf. [AuthSystem](#3-authsystem))
+2. Implement the Authentication System to manage permissions (cf. [AuthSystem](#1-permissions--authsystem))
 3. Implement the code of the methods according to the configuration
 
 
@@ -321,6 +321,97 @@ If you don't return the 'error' field, by default it is set to `new Error(Err::S
 
 > # **V.** Class documentation
 
+> ## **1** Request
+
+### Attributes
+
+The attribute `error` will contain the current `Error` instance.
+
+```php
+<?php
+	public $error;
+```
+
+### Methods
+
+Creates a new `Request` object, you must give it a path following the pattern "module/method", the params must be an associative array. Note that the path can be inside the `$params` variable.
+
+It checks missing params and each needed params' type according to the **Checker** implementation (cf. [Checker](#4-checker)). It also checks the permissions you have according to the **AuthSystem** implementation (cf. [AuthSystem](#1-permissions--authsystem)).
+
+```php
+<?php
+	public function __construct(String $path, Array $params) : Request;
+```
+
+Creates a new `Request` object but from the URL. It will seek for the *path* in the URL, then in the data. (it will call itself the **\_\_construct()** method).
+
+```php
+<?php
+	public static function remote(String $url, Array $data) : Request;
+```
+
+Registers the **AuthSystem** you want, must be done before any construction.
+
+```php
+<?php
+	public static function setAuthSystem(Request $instance) : bool;
+```
+
+Executes the current `Request` object and returns a `Response` object.
+```php
+<?php
+	public function dispatch() : Response;
+```
+
+Same as `dispatch()` but manages the **download** option (cf. [Configuration](#iii-configuration)). It will use 2 of the parameters you must return on success : `body`, and `headers`. The first one must contain the content of the file to create, the second the headers in an associative array.
+
+The call will become the file itself.
+
+Note: If the `HTTP_X_REQUESTED_WITH` header is present, it will create the downloadable file as **/tmp/download_{some\_hash}** and return a normal `Response` object with the field `link` containing the file absolute path.
+
+```php
+<?php
+	public function download() : null;
+	public function download() : Response; // if called by Ajax
+```
+
+> ## **2** Response
+
+### Attributes
+
+The attribute `error` will contain the current `Error` instance.
+
+```php
+<?php
+	public $error;
+```
+
+### Methods
+
+Returns an associative array containing the whole response data (excluding the error).
+
+```php
+<?php
+	public function getAll() : Array;
+```
+
+Returns only the field from the response data (if it exists).
+```php
+<?php
+	public function get(String $key) : mixed; // on success
+	public function get(String $key) : null;  // on error
+```
+
+Sets the `HTTP_CODE` according to the `Error` argument, also it sets the header for **application/json**.
+
+It can be used for simple API response, it will add the *"error"* and *"ErrorDescription"* fields to the data and set the headers so you can display the result of the API call.
+
+```php
+<?php
+	public function serialize() : String;
+```
+
+
 > ## **4** Checker
 
 `Checker` checks the input values according to the type given in the configuration.