Preview Published and Unpublished Content in a Decoupled Drupal Implementation

Drupal previews
Discover the power of a Decoupled Drupal integration with inline previews for published and unpublished content.

In our journey to migrate our Company site to Remix, we wanted to provide at least the same preview capabilities our content editors are used on standard Drupal implementations. Published and unpublished content Previews via the Drupal interface while working with a Decoupled implementations.

In this blog post, we're thrilled to share how we successfully configured our Drupal site to make this a reality.

Drupal Roles and Permissions

To accomplish this task, two new roles were created, "Viewer" and "Previewer."

Both roles contain default permissions; the only new permission added was the "GraphQL Compose - Server: Execute arbitrary requests" to allow both roles to execute GraphQL queries to Drupal from the Decoupled implementation

GraphQL Compose

View Unpublished

This module allows you to grant access for specific user roles to view unpublished nodes of a specific type.

The "View any unpublished content" permission has been added to the "Previewer" role for this particular exercise. This role will be used to fetch data from the Decoupled implementation to Drupal.

View Unpublished

Simple OAuth (OAuth2) & OpenID Connect

This module has been used to configure Drupal as an OAuth 2 authentication provider. In addition, this module allows our Decoupled website to access Drupal's data by acting like a logged-in user and validating roles and permissions to access data.

We created two Consumers and assigned the proper role of "Viewer" & "Previewer" to each one. 

Client ID

Decoupled Preview Iframe

This module allows you to preview content from your decoupled front-end site, embedding an Iframe with the content of your FE application. Use this module to enable the decoupled preview iframe for the certain entity types and entering the preview URL for the frontend website.

Decoupled Preview Iframe

Node Preview Page

What does the final result look like?

Exactly what you expected to see, you can preview your content on the Decoupled implementation regardless if Published or Unpublished status.

Decoupled Preview Iframe Node Preview

Where to find the code for this implementation

We prepare a repository to help you replicate this on your local machine.

Deploy to Cloudflare

Cloudflare platform provides support for project environment variables to build your site and provides custom environment variables:

The values used on each one are the same; the only difference is "DRUPAL_CLIENT_ID" and "DRUPAL_CLIENT_SECRET," which are the values related to the Consumer created in the previous step.

Production: Consumer" Viewer." 
Preview: Consumer "Previewer."

Preview and viewer consumer


For deployment in the "Preview" environment, new code should be committed to a branch named "preview," Cloudflare will deploy the site automatically.

Wrapping up

As we wrap up our exploration and implementing dynamic inline previews, we now easily navigate unpublished content and validate roles and permissions. By configuring Drupal roles, leveraging the Simple OAuth module, and harnessing the capabilities of Cloudflare Pages, we have elevated our workflow to new heights. In addition, the Decoupled Preview Iframe Drupal Module has been the key to seamlessly integrating Drupal with any Decoupled front-end (Remix. Next.js, Astro), providing an unparalleled editing interface experience.  

Are you considering upgrading your Drupal site to a Decoupled implementation? Let's talk about your project! 

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