### Install QuickChart System Dependencies on Linux

Source: https://github.com/typpo/quickchart/blob/master/README.md

Instructions for installing the necessary system dependencies (Cairo, Pango, libjpeg, libgif) for QuickChart on Linux machines using a provided setup script. Note that this script also installs yarn, node, and monit.

```bash
./scripts/setup.sh
```

--------------------------------

### Install QuickChart Node.js Dependencies

Source: https://github.com/typpo/quickchart/blob/master/README.md

Instructions for installing Node.js dependencies for QuickChart after system dependencies are in place, using either Yarn or npm.

```bash
yarn install
# OR
npm install
```

--------------------------------

### Install QuickChart System Dependencies on Mac OSX

Source: https://github.com/typpo/quickchart/blob/master/README.md

Instructions for installing QuickChart system dependencies (cairo, pango, libffi) on Mac OSX using Homebrew. It also includes a potential environment variable export required before installing Node.js packages.

```bash
brew install cairo pango libffi
export PKG_CONFIG_PATH="/usr/local/opt/libffi/lib/pkgconfig"
```

--------------------------------

### Run QuickChart Server Locally with Node.js

Source: https://github.com/typpo/quickchart/blob/master/README.md

Instructions to start the QuickChart server using Node.js. The server defaults to port 3400, which can be changed by setting the 'PORT' environment variable.

```Shell
node index.js
```

--------------------------------

### Run QuickChart Docker Container

Source: https://github.com/typpo/quickchart/blob/master/README.md

Command to run the QuickChart Docker container. This example exposes the container's internal port 3400 to port 8080 on the host machine.

```Shell
docker run -p 8080:3400 ianw/quickchart
```

--------------------------------

### Build QuickChart Docker Image

Source: https://github.com/typpo/quickchart/blob/master/README.md

Command to build the QuickChart Docker image from the current directory. The image will be tagged as 'ianw/quickchart', providing the same web service as quickchart.io.

```Shell
docker build -t ianw/quickchart .
```

--------------------------------

### QuickChart QR Code Generation API Endpoint

Source: https://github.com/typpo/quickchart/blob/master/README.md

Documentation for the QuickChart /qr endpoint, which generates QR code images. It details the required and optional query parameters for customizing the QR code's content, format, size, margin, error correction level, and colors.

```APIDOC
/qr Endpoint Parameters:
  - text: QR code data (required)
  - format: png or svg (png default)
  - size: size in pixels of one side of the square image (defaults to 150)
  - margin: size of the QR image margin in modules (defaults to 4)
  - ecLevel: Error correction level (defaults to M)
  - dark: Hex color code for dark portion of QR code (defaults to 000000)
  - light: Hex color code for light portion of QR code (defaults to ffffff)
```

--------------------------------

### Define Chart.js Configuration for QuickChart URL

Source: https://github.com/typpo/quickchart/blob/master/README.md

This JavaScript/JSON object defines the structure and data for a chart, based on the Chart.js API. It specifies the chart type, labels, and datasets for rendering an image via QuickChart's URL-based service.

```js
{
  type: 'bar',
  data: {
    labels: ['January', 'February', 'March', 'April', 'May'],
    datasets: [{
      label: 'Dogs',
      data: [ 50, 60, 70, 180, 190 ]
    }, {
      label: 'Cats',
      data: [ 100, 200, 300, 400, 500 ]
    }]
  }
}
```

--------------------------------

### QuickChart Health Check API Endpoints

Source: https://github.com/typpo/quickchart/blob/master/README.md

Documentation for QuickChart's API endpoints used to determine service health. Includes a basic health check and a more resource-intensive chart rendering test.

```APIDOC
Endpoint: /healthcheck
  Method: GET
  Description: Basic health check.
  Returns:
    Status: 200 OK
    Body:
      {
        "success": true,
        "version": "1.1.0"
      }

Endpoint: /healthcheck/chart
  Method: GET
  Description: Tests chart rendering and can be useful for cache busting or testing chart rendering.
  Returns:
    Status: 302 Found (redirects to a chart with random attributes)
```

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