code challenge 5 solution

CODING-CHALLENGE-6.md

@@ -0,0 +1,16 @@
+# RESTful Webservices in Symfony
+
+## Coding Challenge 6 - POST vs. PUT
+
+### Tasks
+
+- implement controllers to create and update attendees and workshops
+- both should be possible with JSON and XML
+
+### Solution
+
+- use an `ArgumentValueResolver` (or alternativly the new `#[MapRequestPayload]` attribute) to deserialize the request's content
+- use the `*Repository`s to save the object into the database
+- *CREATE:* use HTTP method `POST`, return an HTTP 201 (Created) status code and
+  set the `Location` header with the help of the `UrlGenerator`
+- *UPDATE:* use HTTP method `PUT`, return an HTTP 204 (No Content) status code and leave the response body empty

CODING-CHALLENGE-7.md

@@ -0,0 +1,14 @@
+# RESTful Webservices in Symfony
+
+## Coding Challenge 7 - Validation
+
+### Tasks
+
+- introduce Symfony's Validator to validate the request content used to create and update workshops and attendees
+
+### Solution
+
+- require the Symfony Validator component: `composer require validator`
+- add validation constraints to your model properties (e.g. NotBlank, Email)
+- inject the `Validator` Service in your `ValueResolver`s
+- for now throw an `UnprocessableEntityHttpException` on validation errors

composer.json

@@ -23,7 +23,8 @@
         "symfony/runtime": "6.3.*",
         "symfony/serializer": "6.3.*",
         "symfony/yaml": "6.3.*",
-        "webmozart/assert": "^1.11"
+        "webmozart/assert": "^1.11",
+        "willdurand/negotiation": "^3.1"
     },
     "config": {
         "allow-plugins": {

src/Controller/Attendee/ListController.php

@@ -27,10 +27,8 @@ public function __invoke(Request $request): Response
             $request->query->getInt('size', 10)
         );
 
-        $serializedAttendeeCollection = $this->serializer->serialize($attendeeCollection, 'json');
+        $serializedAttendeeCollection = $this->serializer->serialize($attendeeCollection, $request->getRequestFormat());
 
-        return new Response($serializedAttendeeCollection, Response::HTTP_OK, [
-            'Content-Type' => 'application/json',
-        ]);
+        return new Response($serializedAttendeeCollection, Response::HTTP_OK);
     }
 }

src/Controller/Attendee/ReadController.php

@@ -5,6 +5,7 @@
 namespace App\Controller\Attendee;
 
 use App\Entity\Attendee;
+use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Annotation\Route;
 use Symfony\Component\Serializer\SerializerInterface;
@@ -17,12 +18,10 @@ public function __construct(
     ) {
     }
 
-    public function __invoke(Attendee $attendee): Response
+    public function __invoke(Request $request, Attendee $attendee): Response
     {
-        $serializedAttendee = $this->serializer->serialize($attendee, 'json');
+        $serializedAttendee = $this->serializer->serialize($attendee, $request->getRequestFormat());
 
-        return new Response($serializedAttendee, Response::HTTP_OK, [
-            'Content-Type' => 'application/json',
-        ]);
+        return new Response($serializedAttendee, Response::HTTP_OK);
     }
 }

src/Controller/Workshop/ListController.php

@@ -27,10 +27,8 @@ public function __invoke(Request $request): Response
             $request->query->getInt('size', 10)
         );
 
-        $serializedWorkshopCollection = $this->serializer->serialize($workshopCollection, 'json');
+        $serializedWorkshopCollection = $this->serializer->serialize($workshopCollection, $request->getRequestFormat());
 
-        return new Response($serializedWorkshopCollection, Response::HTTP_OK, [
-            'Content-Type' => 'application/json',
-        ]);
+        return new Response($serializedWorkshopCollection, Response::HTTP_OK);
     }
 }

src/Controller/Workshop/ReadController.php

@@ -5,6 +5,7 @@
 namespace App\Controller\Workshop;
 
 use App\Entity\Workshop;
+use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Annotation\Route;
 use Symfony\Component\Serializer\SerializerInterface;
@@ -17,12 +18,10 @@ public function __construct(
     ) {
     }
 
-    public function __invoke(Workshop $workshop): Response
+    public function __invoke(Request $request, Workshop $workshop): Response
     {
-        $serializedWorkshop = $this->serializer->serialize($workshop, 'json');
+        $serializedWorkshop = $this->serializer->serialize($workshop, $request->getRequestFormat());
 
-        return new Response($serializedWorkshop, Response::HTTP_OK, [
-            'Content-Type' => 'application/json',
-        ]);
+        return new Response($serializedWorkshop, Response::HTTP_OK);
     }
 }