How to limit a number of messages recieved by a device on Azure IoTHUB

Question

I need to limit a device to 1 message every 60 seconds and I do not know how to do this. I can limit the entry in the DB but I am not sure how to prevent throttling on the IoTHub. I am concerned that a device might accidentally spam IoTHub if the wrong interval to send data is entered, like say maybe 0.006 milliseconds instead of 60000. I would like to block all messages from the same device, or kick the device, if it tries to send more than 1 message within some time threshold. I couldn't find any good documentation on this. Is this possible?

Answer 1

Hi @Justin Oberle ,
IoT Hub has no build in "per device" throttling or configurable throttling. Thus, you need to build your custom solution to block devices in IoT Hub or prevent them sending more messages than intended. this can be either done via custom logic in the cloud observing the number of messages per device and controlling the device's status "enabled/disabled" in the device registry or within the device's client code by maintaining a message counter and deactivate sending within a specific time.

Please see also a previous question iot-hub-limitation-of-the-number-of-messages-sent.html

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