API: Expose organizer and event URL (Z#23116269) (#3121)

src/pretix/api/serializers/event.py

@@ -59,6 +59,7 @@ from pretix.base.settings import (
     LazyI18nStringList, validate_event_settings,
 )
 from pretix.base.signals import api_event_settings_fields
+from pretix.multidomain.urlreverse import build_absolute_uri
 
 logger = logging.getLogger(__name__)
 
@@ -164,6 +165,10 @@ class EventSerializer(I18nAwareModelSerializer):
     timezone = TimeZoneField(required=False, choices=[(a, a) for a in common_timezones])
     valid_keys = ValidKeysField(source='*', read_only=True)
     best_availability_state = serializers.IntegerField(allow_null=True, read_only=True)
+    public_url = serializers.SerializerMethodField('get_event_url', read_only=True)
+
+    def get_event_url(self, event):
+        return build_absolute_uri(event, 'presale:event.index')
 
     class Meta:
         model = Event
@@ -171,7 +176,7 @@ class EventSerializer(I18nAwareModelSerializer):
                   'date_to', 'date_admission', 'is_public', 'presale_start',
                   'presale_end', 'location', 'geo_lat', 'geo_lon', 'has_subevents', 'meta_data', 'seating_plan',
                   'plugins', 'seat_category_mapping', 'timezone', 'item_meta_properties', 'valid_keys',
-                  'sales_channels', 'best_availability_state')
+                  'sales_channels', 'best_availability_state', 'public_url')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)