Dashboard line chart not working

iijan · 17 May 2020 12:15

having bit of an issue trying to display a line chart using stored data,. here is the payload i am sending to the dashboard ui chart node

{"label":"label","data":[{"x":1589785353387,"y":74},{"x":1589785371831,"y":74},{"x":1589785380067,"y":74},{"x":1589785440072,"y":74},{"x":1589785500067,"y":75},{"x":1589785561766,"y":77}],"series":"Humidity"}

what am i doing wrong?..

Colin · 17 May 2020 12:49

It doesn't look much like the format described in the docs (under Stored data). Not nearly enough square brackets about the place.

github.com

node-red/node-red-dashboard/blob/master/Charts.md

# Node-RED-Dashboard Charts

## Live data

To display live data just wire up an input with a `msg.payload` that contains a number.


### Line charts

To display two or more lines on the same chart then each `msg` must also contain `topic`
property that identifies which data series it belongs to - for example:

    {topic:"temperature", payload:22}
    {topic:"humidity", payload:66}

Each series will be represented by a different colour.
Alternatively you can use the property `series` instead of `topic` if you prefer.

It is possible to create "gaps" in line charts by sending either a null or boolean false as the payload.

This file has been truncated. show original

iijan · 18 May 2020 05:31

thanks! it was the square brackets!
nested array

system · 1 June 2020 05:31

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Dashboard line chart not working

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