# Data Parsing (Gantt example)

> WestCoast Charts 1.1.5, release, public Core release, on npm. HTML: https://westcoast-charts.com/gallery/gantt/data-parsing/ · Index for agents: https://westcoast-charts.com/llms.txt

Tasks given as start / end ISO strings and comma-separated dependencies are parsed as is.

- Chart type: `gantt` (Gantt)
- Collection: Gantt · Gantt
- Raw configuration: https://westcoast-charts.com/gallery-src/gantt/data-parsing.js
- Standalone example: https://westcoast-charts.com/embed/samples/wcc/gallery/premium/gantt/data-parsing.html

## Setup

```js
import WestCoastCharts from 'west-coast-charts'
import types from 'west-coast-charts/types'
import premium from 'west-coast-charts/premium'

WestCoastCharts.use(types).use(premium)
const WestCoastChartsPremium = premium
WestCoastCharts.setLicenseKey(LICENCE_KEY) // paid production licence; localhost evaluation needs no key
```

## Options

```js
const options = {
  chart: {
    height: "auto",
    toolbar: {
      show: false
    },
    type: "gantt"
  },
  series: [
    {
      name: "Migration",
      data: [
        {
          id: "t1",
          name: "Kick-off",
          start: "2026-10-05",
          end: "2026-10-06"
        },
        {
          id: "t2",
          name: "Data audit",
          start: "2026-10-06",
          end: "2026-10-14",
          dependsOn: "t1",
          progress: "60"
        },
        {
          id: "t3",
          name: "Schema design",
          start: "2026-10-08",
          end: "2026-10-16",
          dependsOn: "t1"
        },
        {
          id: "t4",
          name: "Migration",
          start: "2026-10-16T00:00:00",
          end: "2026-10-27T00:00:00",
          dependsOn: "t2, t3"
        },
        {
          id: "t5",
          name: "Go-live",
          start: "2026-10-28",
          milestone: true,
          dependsOn: "t4"
        }
      ]
    }
  ],
  plotOptions: {
    gantt: {
      today: {
        date: "2026-10-22"
      }
    }
  },
  theme: {
    mode: "light",
    preset: "coastal"
  }
}

const chart = new WestCoastCharts(document.querySelector('#chart'), options)
await chart.render()
```

## Verify

- Text check (Library 1.1.5): load `west-coast-charts/agent/describe` and call `chart.describe({ format: "json" })` for the actual drawn state. The live reader is on this example’s HTML page.
- Command line (Public agent tools 0.2.3, tested with Library 1.1.5; available from the versioned GitHub release and npm, https://westcoast-charts.com/docs/cli/index.md): `wcc chart export gantt-data-parsing.json --out gantt-data-parsing.svg --with-table` (save the options above as JSON first)