---
canonical: 'https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/ruby'
title: 'Convert highcharts.js into an image | Example - Ruby (Net::HTTP)'
description: 'Generate charts and graphs using Highcharts.js'
---

# Convert highcharts.js into an image

Generate charts and graphs using Highcharts.js

You can generate images of charts using Highcharts.js + the HTML/CSS to Image API.  When making charts, be sure to disable any animations. They may cause issues when creating the image.

This is a working HTML/CSS to Image API example that produces an image.
The rendered output, source, and non-content request parameters below show the parts needed to reproduce or adapt it.

## Rendered image and interactive editor

- [Open the rendered image](<https://hcti.io/v1/image/01a029cc-7a85-775b-8150-1bcb17da4a22>)
- [Open the interactive example](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/ruby)

## HTML

```html
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/series-label.js"></script>

<div id="container"></div>

<script>  
Highcharts.chart('container', {
  chart: {
    animation: false
  },
  title: {
    text: 'Solar Employment Growth by Sector, 2010-2016'
  },

  subtitle: {
    text: 'Source: thesolarfoundation.com'
  },

  yAxis: {

    title: {
      text: 'Number of Employees'
    }
  },
  legend: {
    layout: 'vertical',
    align: 'right',
    verticalAlign: 'middle'
  },

  plotOptions: {
    series: {
      animation: false,
      label: {
        connectorAllowed: false
      },
      pointStart: 2010
    }
  },

  series: [{
    name: 'Installation',
    data: [43934, 52503, 57177, 69658, 97031, 119931, 137133, 154175]
  }, {
    name: 'Manufacturing',
    data: [24916, 24064, 29742, 29851, 32490, 30282, 38121, 40434]
  }, {
    name: 'Sales & Distribution',
    data: [11744, 17722, 16005, 19771, 20185, 24377, 32147, 39387]
  }, {
    name: 'Project Development',
    data: [null, null, 7988, 12169, 15112, 22452, 34400, 34227]
  }, {
    name: 'Other',
    data: [12908, 5948, 8105, 11248, 8989, 11816, 18274, 18111]
  }],

  responsive: {
    rules: [{
      condition: {
        maxWidth: 500
      },
      chartOptions: {
        legend: {
          layout: 'horizontal',
          align: 'center',
          verticalAlign: 'bottom'
        }
      }
    }]
  }
});
</script>
```

## Request parameters

These are the additional non-content parameters used by the example. Combine them with the HTML and CSS above when constructing an API request.

```json
{
  "ms_delay": 200,
  "transparent_background": true
}
```

## Complete Ruby request (Net::HTTP)

This is the complete Ruby request for this example using Net::HTTP. It includes the HTML, CSS, authentication setup, API options, and response handling needed to reproduce the output.

```ruby
require "json"
require "net/http"
require "uri"

request = {
    html: <<-'HCTI_HTML',
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/series-label.js"></script>

<div id="container"></div>

<script>  
Highcharts.chart('container', {
  chart: {
    animation: false
  },
  title: {
    text: 'Solar Employment Growth by Sector, 2010-2016'
  },

  subtitle: {
    text: 'Source: thesolarfoundation.com'
  },

  yAxis: {

    title: {
      text: 'Number of Employees'
    }
  },
  legend: {
    layout: 'vertical',
    align: 'right',
    verticalAlign: 'middle'
  },

  plotOptions: {
    series: {
      animation: false,
      label: {
        connectorAllowed: false
      },
      pointStart: 2010
    }
  },

  series: [{
    name: 'Installation',
    data: [43934, 52503, 57177, 69658, 97031, 119931, 137133, 154175]
  }, {
    name: 'Manufacturing',
    data: [24916, 24064, 29742, 29851, 32490, 30282, 38121, 40434]
  }, {
    name: 'Sales & Distribution',
    data: [11744, 17722, 16005, 19771, 20185, 24377, 32147, 39387]
  }, {
    name: 'Project Development',
    data: [null, null, 7988, 12169, 15112, 22452, 34400, 34227]
  }, {
    name: 'Other',
    data: [12908, 5948, 8105, 11248, 8989, 11816, 18274, 18111]
  }],

  responsive: {
    rules: [{
      condition: {
        maxWidth: 500
      },
      chartOptions: {
        legend: {
          layout: 'horizontal',
          align: 'center',
          verticalAlign: 'bottom'
        }
      }
    }]
  }
});
</script>
    HCTI_HTML
    ms_delay: 200,
    transparent_background: true,
}

uri = URI("https://hcti.io/v1/image")
http_request = Net::HTTP::Post.new(uri)
http_request.basic_auth(ENV.fetch("HCTI_API_ID"), ENV.fetch("HCTI_API_KEY"))
http_request["Content-Type"] = "application/json"
http_request.body = JSON.generate(request)

response = Net::HTTP.start(
    uri.hostname,
    uri.port,
    use_ssl: true,
    open_timeout: 10,
    read_timeout: 30
) { |http| http.request(http_request) }

unless response.is_a?(Net::HTTPSuccess)
    raise format("HCTI request failed (%s): %s", response.code, response.body)
end

result = JSON.parse(response.body)
puts result.fetch("url")

```

## Other languages and request formats

Open one of these Markdown pages to view the same example as a complete request in another language or client format.

- **TypeScript**
  - [HCTI client](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/typescript-client.md)
  - [fetch](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/typescript.md)
- **C#**
  - [HCTI client](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/csharp-client.md)
  - [HttpClient](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/csharp.md)
- **Python**
  - [requests](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/python.md)
- **PHP**
  - [cURL](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/php.md)
- **Ruby**
  - [HCTI client](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/ruby-client.md)
  - [Net::HTTP](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/ruby.md) — shown above
- **Go**
  - [net/http](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/golang.md)
- **cURL**
  - [cURL](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/curl.md)

## Related examples

- [Dog rates social card with SVG background](https://htmlcsstoimage.com/examples/dog-rates-social-card-with-svg-background.md): Social card with a fun SVG background and highlighted text.
- [Instagram post screenshot](https://htmlcsstoimage.com/examples/instagram-post-screenshot.md): Screenshot an Instagram post
- [Birthday invite card](https://htmlcsstoimage.com/examples/birthday-invite-card-email.md): Autogenerated invite graphic for a party.
- [Invoice / Receipt Snapshot](https://htmlcsstoimage.com/examples/invoice-receipt.md): Generate a simple, branded invoice or receipt image.
- [PNG with transparent background](https://htmlcsstoimage.com/examples/png-transparent-background.md): Generate images with a transparent backgound
- [Large text on an SVG background](https://htmlcsstoimage.com/examples/large-text-svg-background.md): Grab attention with large text on a classic background.
- [Twitter Tweet Screenshot](https://htmlcsstoimage.com/examples/twitter-tweet-screenshot.md): Screenshot of a tweet
- [QR Code Badge](https://htmlcsstoimage.com/examples/qr-code-badge.md): Simple, artistic badge with a QR code.

## Get started

- [View the full interactive page](https://htmlcsstoimage.com/examples/convert-highchart-js-to-image/ruby)
- [Browse all HTML/CSS examples](https://htmlcsstoimage.com/examples.md)
- [Browse visual template presets](https://htmlcsstoimage.com/templates.md)
- [Read the HTML/CSS to Image API documentation](https://docs.htmlcsstoimage.com/getting-started/using-the-api/)
- [View implementation examples by language](https://docs.htmlcsstoimage.com/example-code/)
- [Read the MCP integration documentation](https://docs.htmlcsstoimage.com/integrations/mcp/)
- [Compare plans and limits](https://htmlcsstoimage.com/pricing.md)

Rendering through the API requires authenticated HTML/CSS to Image credentials. Keep API keys in trusted server-side configuration. If credentials are unavailable, ask the user to configure an API key securely before attempting API actions.