Getting to grips with Contentful and Jekyll
Contentful, if you’re unaware, is a platform agnostic Content Management System (CMS). You use its API to pull content into a website or app. There are several reasons for using Contentful instead of/in addition to a CMS:
- With a closed CMS such as WordPress you can only publish content to your website. While you can use RSS to pull that content into something else, the Contentful API gives you access to all content types and fields in easy to read and parse json.
- If you move your website away from WordPress you have to get all the content into a new system. Contentful has your content ready to access via the API, which should make for a less disruptive, long-winded process.
- Contentful has a nice WYSIWYG editor, a godsend if you’re using a system which has no front end, such as Jekyll or Middleman. Furthermore, it lets you create well-structured data types easily.
We use Jekyll at work and publish with a text editor, command line and Git. That’s OK for our web team of two as we don’t need (or want) many other people publishing to our website. However, if you’re running a site with lots of distributed writers, editors and publishers, this set up is far from ideal. You’ll want something a little less technical.
Even we’d like the option of adding a news story without having to fire up a terminal – we could publish on a phone or tablet, for example, or the comms manager could post a news story in an emergency. While we can use Prose or even edit files directly in Github, a proper editor would be a lot more useful.
So I decided to test Jekyll and Contentful.
Setting up Contentful and Jekyll
Setting up content types and using the Contentful editor was great, especially for someone who’s been using Markdown for years. Getting Contentful to talk to jekyll was also relatively easy.
I created a simple collection of books for my experiment. The content type
book consisted of four fields:
- Book title (short text)
- Author surname (short text)
- Summary (long text)
Setting up a Contentful account and a book content model took a couple of minutes. I found the UI simple and intuitive:
Happily enough, Contentful provides Jekyll and Middleman plugins for grabbing content and putting it into your project. I installed the Jekyll plugin in a project on my laptop with no problems – you’ll just need a ‘space’ code and an API access token, which you’ll add to your
_config.yml file. Pull content into your project by running
bundle exec jekyll contentful. So far so good.
Displaying pulled in content on the website
Contentful places YAML files in your Jekyll project’s data folder. As you’d expect, the files consist of json name and value pairs:
Now, things got a little trickier here. You’d normally access data in Jekyll with
site.data.[name of folder containing data], so in the case of a books data folder you’d use
site.data.books. You’d then loop through whatever that returned.
Contentful imports complicate your data’s namespace in two ways:
- Contentful tucks data away in nested folders. So my books data lives in
_data → contentful → spaces → books.yaml.
- As you can see from the YAML file, Contentful places
books:at the top of the file, which implies you could have different data types within
All this means
site.data.books doesn’t work. Jekyll changes the namespace to match the folder and data structure, which results in the somewhat verbose
site.data.contentful.spaces.books.book So, to loop through the collection you could use:
Note that Contentful returns Markdown, so using the
markdownify filter will make sure it also works in HTML files. This is what the code produces with the Jekyll Poole theme:
Contentful returns complex data with aplomb – you can put images in long text fields, for example, so you could easily add content models like blog posts.
The good and the bad
Creating, adding and editing complex data is really easy in Contentful. The thoughtfully implemented WYSIWYG editor gets the balance between editing and producing sane code just right.
However, I think there are two problems:
Firstly, as with all static sites, getting content onto a live site is, by default, a manual process. When you edit in WordPress you press the publish button and it’ll appear. In a Contentful/Jekyll workflow the process is:
- Someone visits a Contentful URL
- They log into Contentful
- They write content
- They press publish
- You open the Jekyll project
- You run
bundle exec jekyll contentful
- You run
bundle exec jekyll s
- You FTP/push the site to a server
I’m sure there are ways to automate this process, and perhaps you could run Jekyll remotely, but this raises the question of why run a static site if you need to build all these dynamic features?
Secondly, by adding data to Jekyll, the Contentful plugin makes it difficult to create web pages for each data item. For example, I can’t create a separate page for Pale Fire with its own URL – I can only refer to it in a loop. Normally in Jekyll you’d make a collection for this purpose. I’m sure this is possible, but it’s not available out of the box.
So the search for a friendly, available-everywhere content editor for Jekyll continues. Prose is OK, but flakey on a mobile, while editing files directly in Github is too technical and makes it too easy to break things. In theory Contentful provides the best method – I just need to find ways of automating the process.
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