View source for Template:Graph:PageViews

{{#tag:graph|
{
  //
  // ATTENTION: This code is maintained at https://www.mediawiki.org/wiki/Template:Graph:PageViews
  //            Please do not modify it anywhere else, as it may get copied and override your changes.
  //            Suggestions can be made at https://www.mediawiki.org/wiki/Template_talk:Graph:PageViews
  //            The graph uses PageViews API https://wikitech.wikimedia.org/wiki/Analytics/PageviewAPI
  //

  "version": 2,
  "width": {{{width|800}}},
  "height": {{{height|200}}},

  // The data for this graph comes from the PageView API.  The request is made for N days back up to now.
  "data": [
    {
      "name": "pageviews",
      "url": "wikirest://wikimedia.org/api/rest_v1/metrics/pageviews/{{#ifeq: {{#iferror: {{#expr: {{{1|}}} + 1 }} | {{{1|}}} | {{{2|}}} }} | _ | aggregate | per-article }}/{{trim|{{#ifeq: {{#iferror: {{#expr: {{{1|}}} + 1 }} | {{#iferror: {{#expr: {{{2|}}} + 1 }} | {{{2|{{SERVERNAME}}}}} | {{{3|{{SERVERNAME}}}}} }} | {{{3|{{SERVERNAME}}}}} }} | www.mediawiki.org | mediawiki.org | {{#iferror: {{#expr: {{{1|}}} + 1 }} | {{#iferror: {{#expr: {{{2|}}} + 1 }} | {{{2|{{SERVERNAME}}}}} | {{{3|{{SERVERNAME}}}}} }} | {{{3|{{SERVERNAME}}}}} }} }}}}/{{{platform|all-access}}}/user/{{#ifeq: {{#iferror: {{#expr: {{{1|}}} + 1 }} | {{{1|}}} | {{{2|}}} }} | _
| {{{granularity | monthly}}}
| {{urlencode:{{#titleparts: {{#iferror: {{#expr: {{{1|}}} + 1 }} | {{{1|{{ARTICLEPAGENAME}}}}} | {{{2|{{ARTICLEPAGENAME}}}}} }} }}|PATH}}/daily
}}/{{formatnum:{{#time: Ymd | -{{#iferror: {{#expr: {{{1|}}} + 1 }} | {{#iferror: {{#expr: {{{2|}}} + 1 }} | {{{3|30}}} | {{{2|30}}} }} | {{{1|30}}} }} days }}|R}}00/{{formatnum:{{#time: Ymd }}|R}}00",
      "format": {
        "type": "json",
        "property": "items"
      },

      // The response is parsed here, converting date strings of form "20160223" into date 2016-02-23
      "transform": [
        { "type": "formula", "field": "year", "expr": "parseInt(substring(datum.timestamp,0,4))" },
        { "type": "formula", "field": "month", "expr": "parseInt(substring(datum.timestamp,4,6))" },
        { "type": "formula", "field": "day", "expr": "parseInt(substring(datum.timestamp,6,8))" },
        { "type": "formula", "field": "date", "expr": "datetime(datum.year,datum.month-1,datum.day)" }
      ]
    }
  ],

  "scales": [
    // The dates are scaled to the "x" axis - the width of the graph
    {
      "name": "x",
      "type": "time",
      "range": "width",
      "domain": {"data": "pageviews","field": "date"}
    },
    // The pageviews are scaled to the "y" axis - the height of the graph
    // Optional scale parameter can change "linear" to other scales like log
    // Optional max parameter can fix the upper bound of the graph
    {
      "name": "y",
      "type": "{{{scale|linear}}}",
      "range": "height",
      "domain": {"data": "pageviews","field": "views"},
      "clamp": true,
{{ #if: {{{max|}}}
| "domainMax": {{{max}}},
}}
      "nice": true
    }
  ],

  // Simple axis with horizontal grid lines
  "axes": [
    {
      "type": "x",
      "scale": "x",
      "ticks": 5,
      "properties": {
        "ticks": {"stroke": {"value": "#666666"} },
        "labels": {"fill": {"value": "#666666"} },
        "axis": {"stroke": {"value": "#666666"}, "strokeWidth": {"value": 2} }
      }
    },
    {
      "type": "y",
      "scale": "y",
      "ticks": 5,
      "grid": true,
      "properties": {
        "ticks": {"stroke": {"value": "#666666"} },
        "labels": {"fill": {"value": "#666666"} },
        "grid": {"stroke": {"value": "#666666"}, "strokeWidth": {"value": 2} },
        "axis": {"stroke": {"value": "#666666"}, "strokeWidth": {"value": 2} }
      }
    }
  ],

  // The graph is drawn with two elements a thick line at the top, and a semi-transparent area below
  "marks": [
    {
      "type": "line",
      "from": {"data": "pageviews"},
      "properties": {
        "enter": {
          "x": {"scale": "x","field": "date"},
          "y": {"scale": "y","field": "views"},
          "stroke": {"value": "{{{color|#00f}}}"},
          "strokeWidth": {"value": 3},
          "interpolate": {"value": "{{{interpolate|monotone}}}"}
        }
      }
    },
    {
      "type": "area",
      "from": {"data": "pageviews"},
      "properties": {
        "enter": {
          "x": {"scale": "x","field": "date"},
          "y": {"scale": "y","value": 0},
          "y2": {"scale": "y","field": "views"},
          "fill": {"value": "{{{color|#00f}}}"},
          "fillOpacity": {"value": 0.35},
          "interpolate": {"value": "{{{interpolate|monotone}}}"}
        }
      }
    }
  ]
}
}}<noinclude>{{documentation}}</noinclude>