How to use Arcade Expression to dynamically change the value of labels in a dashboard chart

[Fab_the_lab]

Hi!

I have a chart in the dashboard linked to daily Ozone data.

The data is updated via REST API on a feature layer hosted in AGOL.

The chart on the dashboard is linked to that feature layer.

Well that's great.

The problem is that when I made the chart I inserted some labels that remain fixed and I don't know how to change them so that they display the real day to which they refer!

I was forced to use generic labels, like "one day ago, two days ago, etc.). But it's not exactly the best.

Can someone help me?
Could I use Arcade or Phyton to solve the problem?
How can I use json to dynamically change the dashboard? (a bit like Arcgis Online Assistant does)

Any help is appreciated!

[jcarlson]

Does the data retain the date information at all?

[Fab_the_lab]

hi Josh

yes,  
actually I am able to dynamically change the name of the fields in the hosted feature layer. So the answer is yes, the date is stored in the feature layer.

(see the screenshot)

[jcarlson · Accepted solution]

Oh! I didn't realize that your datapoints were in different fields like that. That would have to be modified at the chart level then, not in the data itself.

I would imagine that this is possible in Python. Check out the Dashboard submodule of the API. If you can identify the chart, I think the data property is what you want.

[Fab_the_lab]

Okay, I'll take a look. Thanks so much!!  🙂