📖 Improve README

README.md

@@ -1,10 +1,56 @@
 # Symfony JSON rest API [![Build Status](https://travis-ci.org/rezzza/symfony-json-rest-api.svg?branch=master)](https://travis-ci.org/rezzza/symfony-json-rest-api)
 
-Symfony stuff to help building a json rest api
+Symfony stuff to help building a JSON REST api :
+- Support JSON payload
+- Support LINK headers
+- Handle exception as JSON response
+- Possibility to validate json payload through json schema
+- Possibility to map custom exception to http code
 
-We will find :
-* [JsonBodyListener](JsonBodyListener.php) to convert raw JSON from body of your requets into request attributes
-* [LinkRequestListener](LinkRequestListener.php) to validate and transform link header into request attributes
-* [JsonExceptionHandler](JsonExceptionHandler.php) to transform exception into JsonResponse
+Here is a simple setup to start :
+```xml
+<?xml version="1.0" ?>
 
-See usage into our [symfony-micro-edition](https://github.com/rezzza/symfony-micro-edition/blob/master/app/services/ui.xml)
+<container xmlns="http://symfony.com/schema/dic/services"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
+
+    <services>
+        <service id="json_body_listener.ui" class="Rezzza\SymfonyRestApiJson\JsonBodyListener">
+            <argument type="service">
+                <service class="Rezzza\SymfonyRestApiJson\PayloadValidator">
+                    <argument type="service">
+                        <service class="Rezzza\SymfonyRestApiJson\JsonSchemaTools" />
+                    </argument>
+                </service>
+            </argument>
+            <tag name="kernel.event_listener" event="kernel.request" method="onKernelRequest" priority="24" />
+        </service>
+
+        <service id="link_request_listener.ui" class="Rezzza\SymfonyRestApiJson\LinkRequestListener">
+            <tag name="kernel.event_listener" event="kernel.request" method="onKernelRequest" priority="10" />
+        </service>
+
+        <service id="json_exception_handler.ui" class="Rezzza\SymfonyRestApiJson\JsonExceptionHandler">
+            <argument type="service">
+                <service class="Rezzza\SymfonyRestApiJson\ExceptionHttpCodeMap">
+                    <argument>%exception_http_code_map%</argument>
+                </service>
+            </argument>
+            <tag name="kernel.event_listener" event="kernel.exception" method="onKernelException" priority="32" />
+        </service>
+
+        <service id="json_exception_controller.ui" class="Rezzza\SymfonyRestApiJson\JsonExceptionController">
+            <argument>%kernel.debug%</argument>
+            <argument>%show_exception_token%</argument>
+        </service>
+
+        <service id="ui.event_listener.exception_listener" class="Symfony\Component\HttpKernel\EventListener\ExceptionListener">
+            <tag name="kernel.event_subscriber" />
+            <tag name="monolog.logger" channel="request" />
+            <argument>json_exception_controller.ui:showException</argument>
+            <argument type="service" id="logger" on-invalid="null" />
+        </service>
+    </services>
+</container>
+```