+# Define a ChargePoint class inheriting from the OCPP 2.0.1 ChargePoint class.
+class ChargePoint(ocpp.v201.ChargePoint):
+ # Message handlers to receive OCPP messages.
+ @on(Action.BootNotification)
+ async def on_boot_notification(self, charging_station, reason, **kwargs):
+ logging.info("Received BootNotification")
+ # Create and return a BootNotification response with the current time,
+ # an interval of 60 seconds, and an accepted status.
+ return ocpp.v201.call_result.BootNotification(
+ current_time=datetime.now(timezone.utc).isoformat(),
+ interval=60,
+ status=RegistrationStatusType.accepted
+ )
+
+ @on(Action.Heartbeat)
+ async def on_heartbeat(self, **kwargs):
+ logging.info("Received Heartbeat")
+ return ocpp.v201.call_result.Heartbeat(current_time=datetime.now(timezone.utc).isoformat())
+
+ @on(Action.StatusNotification)
+ async def on_status_notification(self, timestamp, evse_id, connector_id, connector_status,
+ **kwargs):
+ logging.info("Received StatusNotification")
+ return ocpp.v201.call_result.StatusNotification()
+
+ @on(Action.Authorize)
+ async def on_authorize(self, id_token, **kwargs):
+ logging.info("Received Authorize")
+ return ocpp.v201.call_result.Authorize(
+ id_token_info={'status': AuthorizationStatusType.accepted})
+
+ @on(Action.TransactionEvent)
+ async def on_transaction_event(self, event_type, timestamp, trigger_reason, seq_no,
+ transaction_info, **kwargs):
+ match event_type:
+ case TransactionEventType.started:
+ logging.info("Received TransactionEvent Started")
+ return ocpp.v201.call_result.TransactionEvent(
+ id_token_info={'status': AuthorizationStatusType.accepted})
+ case TransactionEventType.updated:
+ logging.info("Received TransactionEvent Updated")
+ return ocpp.v201.call_result.TransactionEvent(
+ total_cost=10)
+ case TransactionEventType.ended:
+ logging.info("Received TransactionEvent Ended")
+ return ocpp.v201.call_result.TransactionEvent()
+
+ @on(Action.MeterValues)
+ async def on_meter_values(self, evse_id, meter_value, **kwargs):
+ logging.info("Received MeterValues")
+ return ocpp.v201.call_result.MeterValues()
+
+ # Request handlers to emit OCPP messages.
+ async def send_clear_cache(self):
+ request = ocpp.v201.call.ClearCache()
+ response = await self.call(request)
+
+ if response.status == ClearCacheStatusType.accepted:
+ logging.info("Cache clearing successful")
+ else:
+ logging.info("Cache clearing failed")