Initial commit: demo scripts for realtime and timetable API

requirements.txt

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+requests
+gtfs-realtime-bindings

scripts/realtime.py

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+from google.transit import gtfs_realtime_pb2
+import requests
+
+feed = gtfs_realtime_pb2.FeedMessage()
+response = requests.get('https://www.ztm.poznan.pl/pl/dla-deweloperow/getGtfsRtFile?file=trip_updates.pb')
+feed.ParseFromString(response.content)
+for entity in feed.entity:
+  if entity.HasField('trip_update'):
+    print(entity.trip_update)

scripts/timetable.py

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+import requests
+import json
+
+def get_tram_departures():
+    url = "https://www.poznan.pl/mim/komunikacja/service.html"
+    
+    params = {
+        "stop_id": "POKA42"
+    }
+    
+    try:
+        response = requests.get(url, params=params)
+        data = response.json()
+        
+        for route in data.get('routes', []):
+            if route['name'] == '16':
+                for variant in route.get('variants', []):
+                    if variant['headsign'] == 'Os. Sobieskiego':
+                        for service in variant.get('services', []):
+                            # Get first 3 departures
+                            departures = service.get('departures', [])[0:3]
+                            return departures
+        
+        return []
+        
+    except requests.exceptions.RequestException as e:
+        print(f"Error making request: {e}")
+        return []
+    except json.JSONDecodeError as e:
+        print(f"Error parsing JSON: {e}")
+        return []
+
+def main():
+    departures = get_tram_departures()
+    if departures:
+        print("Next 3 departures for tram 16 to Os. Sobieskiego:")
+        for departure in departures:
+            print(departure)
+    else:
+        print("No departures found or error occurred")
+
+if __name__ == "__main__":
+    main()