This article is an updated version of the this post.

So I guess you heard about Headless CMS?

If you are not familiar with the concept — there is a handy Wikipedia page https://en.wikipedia.org/wiki/Headless_content_management_system. To read about Static Site Generators I do recommend Cloudflare article: https://www.cloudflare.com/en-gb/learning/performance/static-site-generator/.

In this article I am going to describe how to use Jekyll as Static Site Generator using Strapi version 4 as Headless CMS backend.
Requirements

To perform exercises described in this article you are going need following:

• Ruby https://www.ruby-lang.org/en/documentation/installation/
• Jekyll https://jekyllrb.com/docs/installation/
• NodeJS and npm https://docs.npmjs.com/downloading-and-installing-node-js-and-npm
• Python3 (but you can use any other http server)

Simple portfolio website

In this example, we are creating a very simple Photography portfolio page, where users can upload a photo with a title and a simple description.
Strapi Configuration — CMS Setup

Strapi Configuration

Create a new Strapi project:

npx create-strapi-app@latest my-project-photo --quickstart

And then to start the project:

cd my-project-photo
npm run develop

Or if you are using yarn:

yarn create-strapi-app@latest my-project-photo --quickstart
cd my-project-photo
yarn run develop

Now you should have a reachable Strapi instance here: http://localhost:1337/.

Strapi Configuration — Collection setup

Go to Content-Type Build in your admin instance http://localhost:1337/admin/plugins/content-type-builder/ and then create Collection as below:

To create the fields choose:

Text field for the Title, type of Short text:

Media field with a name Image, type Single media:

Text field with a name Comment, type Long text:

Finally, you should have something similar to:

Now go to Content Manager and add your first object to the database:

Auth token generation

Go to: http://localhost:1337/admin/settings/api-tokens/create and create a new token:

After the creation — save the token aside — you will need it later. Some password manager is recommended.

Jekyll Configuration

In your Jekyll project add to Gemfile:

gem “jekyll-strapi-4”, “~> 1.0.11”

and install bundle:

bundle install

Jekyll project configuration

Create new Jekyll project

jekyll new portfolio-site
cd portfolio-site

Add jekyll-strapi-4 to the plugins in _config.yml:

plugins:
  - jekyll-feed
  - jekyll-strapi-4

and following at the end of _config.yml:

strapi:
    # Your API endpoint (optional, default to http://localhost:1337)
    endpoint: http://localhost:1337
    # Collections, key is used to access in the strapi.collections
    # template variable
    collections:
        # Example for a "Photo" collection
        photos:
            # Collection name (optional)
            # type: photos
            # Permalink used to generate the output files (eg. /articles/:id).
            permalink: /photos/:id/
            # Layout file for this collection
            layout: photo.html
            # Generate output files or not (default: false)
            output: true

We install the plugin:

bundle install

Then in _layouts directory create two files, home.html:

---
layout: default
---

<div class="home">
  <h1 class="page-heading">Photos</h1>
  {%- if strapi.collections.photos.size > 0 -%}
  <ul>
    {%- for photo in strapi.collections.photos -%}
    <li>
      <a href="{{ photo.url }}">{{ photo.strapi_attributes.Titlle }}</a>
    </li>
    {%- endfor -%}
  </ul>
  {%- endif -%}
</div>

and photo.html:

---
layout: default
---

<div class="home">
  <h1 class="page-heading">{{ page.strapi_attributes.TestDescription }}</h1>
  <h2>{{ page.document.strapi_attributes.Title }}</h2>
  <p>{{ page.document.strapi_attributes.Comment }}</p>
  <img src="{{ page.document.strapi_attributes.Image.data.attributes.formats.thumbnail| asset_url }}"/>
</div>

Now you must set the environmental variable with auth token (you need to use the previously saved token here):

export STRAPI_TOKEN=328438953489534...345423053895

and now you can generate your page:

bundle exec jekyll build --trace

And after that you can check your website:

cd _site
python3 -m http.server

and opening http://localhost:8000 in your browser.

Deployed example — demo

Here you can see the page from the previous example deployed to GitHub pages: https://jekyll-strapi-v4-example.bluszcz.net/

It is using the following GitHub repository: https://github.com/bluszcz/jekyll-strapi-v4-example.github.io/