LS,
I have a "simple" vega script to extract data from elasticsearch to "visualize":
{
"$schema": "https://vega.github.io/schema/vega/v5.json",
"width": 400, "height": 70,
"padding": 5,
"autosize": "none",
"bgColor": "green",
"data":
{
name: "statusData",
url:
{
index: "my-index",
%context%: "true",
%timefield% : "@timestamp",
body:
{
_source: [
"@timestamp",
"availStatus",
"availStatusNr",
"cluster*"
],
sort: [ {"@timestamp": "desc"}],
size: 1
}
},
format: {property: "hits.hits"},
transform: [
{
# This doesn't seem to work...
"type": "formula",
"expr": "if ('datum._source.availStatusNr > 0','green','red')",
"as": "myColor"
}
]
},
"background": "green" # "background": { "field": "bgColor" } # this doesn't work anyway...
"marks": [
{
"type": "text",
"from": { data: "statusData" },
"encode": {
"update": {
"text": { "field": "_source.@timestamp" },
"font": { "value": "inter" },
"fontSize": { "value": "24" },
"align": { "value": "center"},
"baseline": { "value": "middle"},
"stroke": { "value": "white" },
"x": { "signal": "width/2" },
"y": { "signal": "height/2" },
}
}
}
]
}
It shows a text box containing @timestamp. Except, it's static. Every minute there's data added to the "my-index" in ES, but the visual is not updated. Question is why?
And yes, this is just some test code...
Kind regards, Edgar.
