Searching for people who are publishing to "hiveeyes/testdrive/sandsjo"

Entwicklung / Development Fehleranalyse / Troubleshooting
1

Hi there,

this is addressed to the publisher of measurement data we describe below.

Findings

We are currently receiving measurement data on our “testdrive” channel, which is looking like

  • Topic
    hiveeyes/testdrive/sandsjo/data.json

  • Payload
    {"weight":33.33,"temperature1":42.42,"humidity1":84.84,"battery_level":50}

Effect

This is currently triggering an error condition which also gets published to the MQTT bus:

hiveeyes/testdrive/sandsjo/error.json {
    "timestamp": "2018-10-13T18:54:11+00:00",
    "message": "'NoneType' object has no attribute 'startswith'",
    "type": "<type 'exceptions.AttributeError'>",
    "description": "Error processing MQTT message \"{\"weight\":33.33,\"temperature1\":42.42,\"humidity1\":84.84,\"battery_level\":50}\" from topic \"hiveeyes/testdrive/sandsjo/data.json\"."
}

Reason

The channel address encoded into the MQTT Topic is missing the last segment, which encodes the "node" part of the address. The address is made of four parts "realm / network / gateway / node", see also Hiveeyes data acquisition » Addressing.

Solution

You should just add another segment to the channel address. An example MQTT topic which should work could be

hiveeyes/testdrive/sandsjo/node-01/data.json

Thanks in advance for addressing this issue!

With kind regards,
Andreas.

2
3

Fixed. Thanks!

Regards Staffan

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