Hi,
Via MQTT the property "Speedometer" gets every 10 seconds a new value which is in json format. All the other properties have a subsciption to the "Speedometer" property and so they change their values every 10 seconds too.
When I run the Service QueryPropertyHistory no values are displayed. The Thing and its template have a Value Stream and all the properties are persistent and logged.
Then try to add your MQTT user to Administrators group temporarily -- if that works, then you just need to find where you missed some access rights. Adding debug statements to your subscriptions and monitoring Application and Script logs for errors should help you with identifying the culprit.
If nothing seems to help -- try to grant your MQTT user as much permissions as possible (for example, full access on collections level) until it works, and then start to take them away until it breaks -- this approach works well for me when I'm stuck with permissions.
/ Constantine
No account yet? Create an account
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
