feat: Feed map with real data

src/fellchensammlung/api/renderers.py

@@ -0,0 +1,33 @@
+from rest_framework.renderers import BaseRenderer
+import json
+
+
+class GeoJSONRenderer(BaseRenderer):
+    media_type = 'application/json'
+    format = 'geojson'
+    charset = 'utf-8'
+
+    def render(self, data, accepted_media_type=None, renderer_context=None):
+        features = []
+        for item in data:
+            coords = item["coordinates"]
+            if coords:
+                feature = {
+                    "type": "Feature",
+                    "geometry": {
+                        "type": "Point",
+                        "coordinates": coords
+                    },
+                    "properties": {
+                        k: v for k, v in item.items()
+                    },
+                    "id": f"adoptionnotice/{item['id']}"
+                }
+                features.append(feature)
+
+        geojson = {
+            "type": "FeatureCollection",
+            "generator": "notfellchen",
+            "features": features
+        }
+        return json.dumps(geojson)