Here is a sample you could use. I use ArcREST for most of my AGS administration workflows, it's very powerful and imho simple to use.
You will need an AGS feature service and user credentials to create a token.
from arcrest.manageags._services import AGSService
from arcrest.ags.server import Server
from arcrest import AGSTokenSecurityHandler
from arcrest.common.general import Feature
ags_admin_url = r"http://localhost:6080/arcgis/admin"
ags_securityHandler = AGSTokenSecurityHandler(username='user', password='pwd',
org_url=ags_admin_url)
base_url = r"http://localhost:6080/arcgis/rest/services/"
ags_featureservice_service_folder = "MultiuserGdb"
ags_featureservice_name = "FS_Roads"
ags_user_mapservice_with_fs_service_url = base_url + "{0}/{1}/MapServer".format(ags_featureservice_service_folder,
ags_featureservice_name)
ags_user_featureservice_service_url = base_url + "{0}/{1}/FeatureServer".format(ags_featureservice_service_folder,
ags_featureservice_name)
rest_server = Server(ags_user_mapservice_with_fs_service_url,
ags_securityHandler)
rest_server.currentFolder = ags_featureservice_service_folder
ags_services = rest_server.services
feature_service = [service for service in ags_services
if service.url == ags_user_featureservice_service_url][0]
fs_layer = feature_service.layers[0]
features_to_add_to_feature_service = r"C:\GIS\GitProjects\unit_tests_arcrest\GeoData\FeatureServiceInData.gdb\feats_to_add"
features = Feature.fc_to_features(features_to_add_to_feature_service)
result = fs_layer.addFeature(features)
print result
The printed info:
{u'addResults': [{u'success': True, u'objectId': 7514}, {u'success': True, u'objectId': 7515}, {u'success': True, u'objectId': 7516}, {u'success': True, u'objectId': 7517}]}