Add a service for adding a new field

services_scripts/add_new_field.py

@@ -0,0 +1,14 @@
+from qgis.core import QgsField, QgsVectorLayer, QgsVectorDataProvider
+from qgis.PyQt.QtCore import QVariant
+
+# Step 1 : Adding the Area field
+layer = QgsVectorLayer(
+  'C:/Users/a_adli/PycharmProjects/'
+  'hydroquebec_archetype_gispy/data/'
+  'output_data/multi_to_single/multi_to_single.shp', "your_layer", "ogr")
+functionalities = layer.dataProvider().capabilities()
+
+if functionalities & QgsVectorDataProvider.AddAttributes:
+    new_field = QgsField("Area", QVariant.Double)  # Using QVariant.Double for area
+    layer.dataProvider().addAttributes([new_field])
+    layer.updateFields()