grafana

[hansen-jun]

Hello!

I have a problem with grafana. I configure the data source according to your tutorial, but when I build a new dashboard, I don't show any data points.

[hherglotz]

Hi,

I ran into the same problem and I think I identified the problem.

I'm running devicehive with the provided docker environment. I configured the datasource as documented and got confirmation that the datasource is active.

The dashboard is however not showing the data points. I think it is due to wrong formatting option. The websocket query used by Grafana is:

{"action":"notification/list","deviceId":"test13","start":1602056204592,"end":1602056324592,"sortField":"timestamp","sortOrder":"ASC","take":960,"notification":"python-test","requestId":"deviceHiveId_5"}

The start and end property seem to be formatted as Unix Timestamps, whereas the documentation states that those should be datetime objects:

https://docs.devicehive.com/docs/query-1

I used a websocket debugging tool and changed the timestamps to datetime objects in the request like follows:

{"action":"notification/list","deviceId":"test13","start":"2020-10-07T07:15:28.080","end":"2020-10-07T07:45:28.080","sortField":"timestamp","sortOrder":"ASC","notification":"python-test","take":960,"requestId":"deviceHiveId_2"}

In this case, the Websocket Proxy returns the datapoints.

Unfortunately I haven't found a way yet to configure the format of the start and end property of the JSON to timestamps in Grafana.

[hherglotz]

Hi,

I managed to get this working.

In the Grafana Configuration tab, go to Preferences and change the Timezone to UTC and Save.

I am now getting the datapoints into the Dashboard.