dusky3 / action

Automate image generation with HTML/CSS to Image API + GitHub Actions

HTML/CSS to Image Action

Convert HTML/CSS to an image (png, jpg or webp) using GitHub Actions.

Set your secrets

Sign up for an API key at https://htmlcsstoimage.com. Then set the following secrets in your repository. The values for each are available on your dashboard.

• HCTI_USER_ID
• HCTI_API_KEY

Add to your workflow

- name: Create image
  id: create_image
  uses: htmlcsstoimage/action@v1
  with:
    hcti_user_id: ${{ secrets.HCTI_USER_ID }}
    hcti_api_key: ${{ secrets.HCTI_API_KEY }}
    html: "<div id='box'>Hello, world</div>"
    css: ".box { width: 200px; height: 200px; font-family: 'Roboto' }"
    google_fonts: "Roboto"

Here's a full example in a workflow.

on:
  push

name: Generate image

jobs:
  image:
    name: Cowsays
    runs-on: ubuntu-latest
    steps:
    - name Create image
      uses: htmlcsstoimage/action@v1
      id: create_image
      with:
       hcti_user_id: ${{ secrets.HCTI_USER_ID }}
       hcti_api_key: ${{ secrets.HCTI_API_KEY }}
       html: "<div id='box'>Hello, world</div>"
       css: ".box { width: 200px; height: 200px; font-family: 'Roboto' }"
       google_fonts: "Roboto"
    - name: Print url
      uses: mscoutermarsh/cowsays-action@master
      with:
        text: ${{ steps.create_image.outputs.url }} 
        color: "green"

Output

The API will return a URL with your created image.

  with:
    hcti_user_id: ***
    hcti_api_key: ***
    html: <div class="box">Hello, world</div>
    css: .box { width: 400px }
{
  url: 'https://hcti.io/v1/image/8bfe53b8-fcd3-4cd9-9aa5-2fe67046d59c'
}

You can then access it via the outputs in your next steps to pass it to another Action. ${{ steps.create_image.outputs.url }}. The create_image comes from the id set in your step using this Action.