Display just one number in Vega/Kibana - kibana

Question

I'm trying to create a query/display that just shows a single number. I've had to do it in vega because the query involves a number of queries, then transforms involving timedeltas to merge the data together.
In my browser developer tools I can see that the data is coming through.
All I'm after here is days here is my marks section in vega:
"marks": [
{
"type": "text",
"from": { "data": "results" },
"properties": {
"enter": {
"text": "days",
"x": {"value": 10},
"y": {"value": 10},
"fill": {"value": "red"},
"fillOpacity": {"value": 1},
"fontSize": {"value": 100}
},
"update": {
"text": "days",
"x": {"value": 10},
"y": {"value": 10},
"fill": {"value": "red"},
"fillOpacity": {"value": 1},
"fontSize": {"value": 100}
}
}
}
]
I have also tried { "field": "days" } instead of "days" along with a good few attempts to change the x,y and fills etc.
I get no errors in the browser and the visualization is just blank.
Does anyone know what I'm doing wrong here?

Answer 1

A bit late, but I'm just facing the same situation right now.
I've managed to put up a minimal working example using Vega-Lite; not sure it is exactly as it is supposed to be, but at least it is working. You can check it out here.
The code is the following:
{
"$schema": "https://vega.github.io/schema/vega-lite/v4.json",
"data": {
"values": [
{"a": 28}
]
},
"encoding": {
"text": {
"field": "a",
"type": "quantitative"
}
},
"mark": {
"type": "text",
"fill": "red",
"fontSize": 100,
"fillOpacity": 1,
"x": 10,
"y": 10
},
"config": {
"view": {
"stroke": "transparent"
}
}
}
A couple of remarks on the code:
I'm using your example's fill, fontSize, fillOpacity, x and y options; they could be different or even not be there.
When displaying just text, the "container" of the visualization can be seen as a small box surrounding the text in a light gray by default. The "stroke": "transparent" config option is what gets rid of this box.
I'm pretty new to Vega (just started some minutes ago), so my apologies in advance for any possible conceptual errors.
Edit
Looking pretty good in Kibana so far :)