add: Corner class, app

app/lib/pages/marker_handler/marker_data.dart

@@ -70,4 +70,24 @@ class Data {
       accuracy: json['Accuracy'],
     );
   }
+}
+
+class Corner {
+  double cornerID;
+  double latitude;
+  double longitude;
+
+  Corner({
+    required this.cornerID,
+    required this.latitude,
+    required this.longitude,
+  });
+
+  factory Corner.fromJson(Map<String, dynamic> json) {
+    return Corner(
+      cornerID: json['CornerID'],
+      latitude: json['CornerLatitude'],
+      longitude: json['CornerLongitude'],
+    );
+  }
 }
\ No newline at end of file

server/map/get_markers.py

@@ -63,22 +63,22 @@ def get_all_markers(self, cursor):
         if len(rows) == 0 or len(data) == 0:  # Return 500 and empty list if no data is found
             print(f"An error occurred while querying the database")
             resp_code = 500
-            marker_json = '[]'
+            marker_data = '[]'
         else:
             resp_code = 200
             # Convert list of dictionaries to JSON
-            marker_json = json.dumps(data, indent=4)
+            marker_data = json.dumps(data, indent=4)
 
     except Exception as e:
         print(f"An error occurred while querying the database: {e}")
         resp_code = 500
-        marker_json = '[]'
+        marker_data = '[]'
 
     # Set headers
     self.send_response(resp_code)
     self.send_header("Content-type", "application/json")
     self.end_headers()
 
-    # Write marker_data to the response object
-    self.wfile.write(marker_json.encode('utf-8'))
+    # Write marker data to the response object
+    self.wfile.write(marker_data.encode('utf-8'))