Starting Vega Chart Spec

starting_vega_chart.json

{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "width": 300,
  "height": 300,
  "padding": {
    "top": 20,
    "left": 80,
    "bottom": 40,
    "right": 20
  },
  "autosize": { "type": "none", "resize": true, "contains": "padding" },

  "data": [
    {
      "name": "table",
      "values": []
    }
  ],

  "scales": [
    {
      "name": "nameScale",
      "type": "band",
      "domain": { "data": "table", "field": "key" },
      "range": "height",
      "padding": 0.05,
      "round": true
    },
    {
      "name": "barScale",
      "domain": { "data": "table", "field": "value" },
      "nice": true,
      "range": "width"
    }
  ],

  "axes": [
    {
      "orient": "left",
      "scale": "nameScale",
      "ticks": false,
      "grid": true,
      "domain": false,
      "labels": true,
      "labelAlign": "right",
      "offset": 10,
      "labelLimit": 90,
      "tickRound": false,
      "labelFlush": false,
      "title": "X X X",
      "titleAngle": -90,
      "titleAnchor": "start",
      "titleAlign": "center",
      "titlePadding": 30,
      "titleBaseline": "top",
      "titleFontWeight": "normal",
      "labelAngle": -40,
      "labelFontSize": 12
    },
    {
      "orient": "bottom",
      "scale": "barScale",
      "ticks": true,
      "domain": true,
      "labels": true,
      "offset": 0,
      "labelLimit": 1000,
      "titlePadding": 20,
      "tickRound": false,
      "title": "Y Y Y",
      "titleAnchor": "end",
      "titleBaseline": "bottom",
      "titleFontWeight": "normal",
      "labelFlush": false
    }
  ],

  "marks": [
    {
      "type": "rect",
      "from": { "data": "table" },
      "encode": {
        "enter": {
          "y": { "scale": "nameScale", "field": "key" },
          "height": { "scale": "nameScale", "band": 1 },
          "x": { "scale": "barScale", "field": "value" },
          "x2": { "scale": "barScale", "value": 0 },
          "fill": { "value": "red" }
        }
      }
    },
    {
      "type": "rect",
      "encode": {
        "enter": {
          "y": { "value": 0 },
          "height": { "signal": "height" },
          "x": { "scale": "barScale", "value": 0 },
          "x2": { "scale": "barScale", "value": 0 },
          "stroke": { "value": "#BBB" }
        }
      }
    }
  ]
}