diff --git a/deployment/Dockerfile b/deployment/Dockerfile
index 08c6567..ab12052 100644
--- a/deployment/Dockerfile
+++ b/deployment/Dockerfile
@@ -5,7 +5,7 @@ WORKDIR /usr/src/app
 
 RUN --mount=type=cache,target=/var/cache/apt \
 	apt-get update && \
-    apt-get install --no-install-recommends -y build-essential libpq-dev gettext chromium-driver \
+    apt-get install --no-install-recommends -y build-essential libpq-dev gettext chromium-driver  \
     && rm -rf /var/lib/apt/lists/*
 
 
diff --git a/deployment/scripts/celery/start-worker.sh b/deployment/scripts/celery/start-worker.sh
index 1b4eb4c..9927408 100644
--- a/deployment/scripts/celery/start-worker.sh
+++ b/deployment/scripts/celery/start-worker.sh
@@ -3,4 +3,4 @@
 set -o errexit
 set -o nounset
 
-celery -A "$APP_NAME" worker -l info
+python3 /usr/local/lib/python3.11/site-packages/watchdog/watchmedo.py auto-restart -d agenda_culturel -p '*.py' --recursive -- celery -A "$APP_NAME" worker -l info
diff --git a/docker-compose.yml b/docker-compose.yml
index f792ccf..2270e5c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -45,6 +45,7 @@ services:
     volumes:
         - redis_data:/data
 
+
   celery-worker: &celery-worker
     container_name: "${APP_NAME}-celery-worker"
     build:
diff --git a/src/agenda_culturel/celery.py b/src/agenda_culturel/celery.py
index c80dfb7..9b4d3e6 100644
--- a/src/agenda_culturel/celery.py
+++ b/src/agenda_culturel/celery.py
@@ -6,6 +6,7 @@ from celery.utils.log import get_task_logger
 
 from .extractors import ExtractorAllURLs 
 
+
 # Set the default Django settings module for the 'celery' program.
 APP_ENV = os.getenv("APP_ENV", "dev")
 os.environ.setdefault("DJANGO_SETTINGS_MODULE", f"agenda_culturel.settings.{APP_ENV}")
@@ -27,15 +28,25 @@ app.autodiscover_tasks()
 
 @app.task(bind=True)
 def create_event_from_submission(self, url):
+    from agenda_culturel.models import Event
+
     logger.info(f"{url=}")
-    try:
-        logger.info("About to create event from submission")
-        events = ExtractorAllURLs.extract(url)
-        # TODO
-    except BadHeaderError:
-        logger.info("BadHeaderError")
-    except Exception as e:
-        logger.error(e)
+
+    if len(Event.objects.filter(reference_urls__contains=[url])) != 0:
+        logger.info("Already known url: ", url)
+    else:
+        try:
+            logger.info("About to create event from submission")
+            events = ExtractorAllURLs.extract(url)
+
+            if events != None:
+                for e in events:
+                    e.save()
+
+        except BadHeaderError:
+            logger.info("BadHeaderError")
+        except Exception as e:
+            logger.error(e)
 
 
 app.conf.timezone = "Europe/Paris"
diff --git a/src/agenda_culturel/extractors.py b/src/agenda_culturel/extractors.py
index 5d3c01e..d20927f 100644
--- a/src/agenda_culturel/extractors.py
+++ b/src/agenda_culturel/extractors.py
@@ -1,5 +1,5 @@
 from abc import ABC, abstractmethod
-#from .models import Event
+
 
 from selenium import webdriver
 from selenium.webdriver.chrome.service import Service
@@ -8,6 +8,8 @@ from selenium.webdriver.chrome.options import Options
 from bs4 import BeautifulSoup
 
 import json
+from datetime import datetime
+
 
 
 from celery.utils.log import get_task_logger
@@ -67,21 +69,27 @@ class ExtractorFacebook(Extractor):
                             return v
             return None
 
-    def extract(url):
-        txt = Extractor.download(url)
-        if txt is None:
-            logger.error("Cannot download " + url)
-            return None
-        else:
-            soup = BeautifulSoup(txt, "html.parser")
-            for json_script in soup.find_all('script', type="application/json"):
-                json_txt = json_script.get_text()
-                json_struct = json.loads(json_txt)
-                fevent = ExtractorFacebook.FacebookEvent.find_event_in_array(json_struct)
-                if fevent != None:
-                    logger.info(str(fevent))
-                    result = "TODO"
-                    return result
+
+        def build_event(self, url):
+            from .models import Event
+            # TODO
+            return Event(title=self.data["name"], 
+                        status=Event.STATUS.DRAFT,
+                        start_day=datetime.fromtimestamp(self.data["start_timestamp"]),
+                        reference_urls=[url])
+
+    def process_page(txt, url):
+
+        soup = BeautifulSoup(txt, "html.parser")
+        for json_script in soup.find_all('script', type="application/json"):
+            json_txt = json_script.get_text()
+            json_struct = json.loads(json_txt)
+            fevent = ExtractorFacebook.FacebookEvent.find_event_in_array(json_struct)
+            if fevent != None:
+                logger.info(str(fevent.data))
+
+                result = fevent.build_event(url)
+                return [result]
         
         return None
 
@@ -92,11 +100,18 @@ class ExtractorAllURLs:
     def extract(url):
         logger.info("Run extraction")
 
-        result = ExtractorFacebook.extract(url)
+        txt = Extractor.download(url)
+        if txt is None:
+            logger.info("Cannot download url")
+            return None
 
-        if result is None:
+        result = ExtractorFacebook.process_page(txt, url)
+
+        if result is not None:
+            return result
+        else:
             logger.info("Not a Facebook link")
-            # add here other extrators
-            pass
 
-        return result
+        # TODO: add here other extrators
+
+        return None
diff --git a/src/agenda_culturel/templates/agenda_culturel/event.html b/src/agenda_culturel/templates/agenda_culturel/event.html
index 28b1dd4..a7ccdee 100644
--- a/src/agenda_culturel/templates/agenda_culturel/event.html
+++ b/src/agenda_culturel/templates/agenda_culturel/event.html
@@ -1 +1,2 @@
 <h1>{{ object.title }}</h1>
+<p>Date&nbsp;: {{ object.start_day }}</p>
\ No newline at end of file
diff --git a/src/agenda_culturel/urls.py b/src/agenda_culturel/urls.py
index 0dbd4ab..383eb6a 100644
--- a/src/agenda_culturel/urls.py
+++ b/src/agenda_culturel/urls.py
@@ -10,7 +10,7 @@ from .views import *
 urlpatterns = [
     path("", EventListView.as_view(), name="home"),
     re_path(r'^(?P<mode>' + '|'.join([dm.value for dm in DisplayModes]) + ')/$', view_interval, name='view_interval'),
-    path("event/<pk>-<extra>", EventDetailView.as_view(), name="view_event"),
+    path("event/<int:pk>-<extra>", EventDetailView.as_view(), name="view_event"),
     path("proposer", EventSubmissionFormView.as_view(), name="event_submission_form"),
     path("admin/", admin.site.urls),
     path("test_app/", include("test_app.urls")),
diff --git a/src/requirements.txt b/src/requirements.txt
index a327a55..1657d88 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -22,3 +22,4 @@ redis==4.5.5
 whitenoise==6.4.0
 selenium==4.14.0
 BeautifulSoup4==4.12.2
+watchdog==3.0.0