back-end ustreamer, GPS, timelapse, and photo-refresh site working

files/python_gps/app.py

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+from flask import Flask, jsonify
+import gps
+import threading
+import time
+
+app = Flask(__name__)
+
+# GPS data container
+current_gps_data = {
+    "latitude": None,
+    "longitude": None,
+    "altitude": None,
+    "speed": None,
+    "timestamp": None
+}
+
+# Global gps session object
+session = gps.gps(mode=gps.WATCH_ENABLE | gps.WATCH_NEWSTYLE)
+
+def gps_monitor():
+    global current_gps_data
+    while True:
+        try:
+            # Wait for new data from the GPS device
+            report = session.next()
+            if report['class'] == 'TPV':
+                current_gps_data = {
+                    "latitude": report.get('lat', None),
+                    "longitude": report.get('lon', None),
+                    "altitude": report.get('alt', None),
+                    "speed": report.get('speed', None),
+                    "timestamp": report.get('time', None)
+                }
+        except gps.GPSException as e:
+            print(f"GPS Error: {e}")
+        except KeyError as e:
+            print(f"Missing Key: {e}")
+        time.sleep(1)
+
+@app.route('/gps', methods=['GET'])
+def get_gps_data():
+    """API endpoint to fetch current GPS data"""
+    if None in current_gps_data.values():
+        return jsonify({"error": "No GPS data available yet"}), 404
+    return jsonify(current_gps_data)
+
+if __name__ == '__main__':
+    # Start GPS monitoring in a separate thread
+    gps_thread = threading.Thread(target=gps_monitor)
+    gps_thread.daemon = True  # This makes the thread exit when the program does
+    gps_thread.start()
+
+    # Run the Flask web service
+    app.run(host='0.0.0.0', port=5000)