Replaced NotImplementedError in example with prints

Author: michalpokusa

examples/httpserver_url_parameters.py

@@ -25,10 +25,10 @@
 
 class Device:
     def turn_on(self):
-        raise NotImplementedError
+        print("Turning on device.")
 
     def turn_off(self):
-        raise NotImplementedError
+        print("Turning off device.")
 
 
 def get_device(device_id: str) -> Device:  # pylint: disable=unused-argument
@@ -40,17 +40,21 @@ def get_device(device_id: str) -> Device:  # pylint: disable=unused-argument
 
 @server.route("/device/<device_id>/action/<action>")
 @server.route("/device/emergency-power-off/<device_id>")
-def perform_action(request: HTTPRequest, device_id: str, action: str = None):
+def perform_action(request: HTTPRequest, device_id: str, action: str = "emergency_power_off"):
     """
     Performs an "action" on a specified device.
     """
 
     device = get_device(device_id)
 
-    if action == "turn_on":
+    if action in ["turn_on",]:
         device.turn_on()
-    elif action == "turn_off" or action is None:
+    elif action in ["turn_off", "emergency_power_off"]:
         device.turn_off()
+    else:
+        with HTTPResponse(request, content_type=MIMEType.TYPE_TXT) as response:
+            response.send(f"Unknown action ({action})")
+        return
 
     with HTTPResponse(request, content_type=MIMEType.TYPE_TXT) as response:
         response.send(f"Action ({action}) performed on device with ID: {device_id}")