You need an instance of ONLYOFFICE Docs (Document Server) that is resolvable and connectable both from Drupal and any end clients. If that is not the case, use the official ONLYOFFICE Docs documentation page. ONLYOFFICE Docs must also be able to POST to Drupal directly.
The easiest way to install an instance of ONLYOFFICE Docs is to use Docker.
To start using ONLYOFFICE Docs with Drupal, follow these steps:
Step 1: Add the module
There are two options to add the Drupal module.
Option 1. Add a module using Drupal's User Interface.
Option 2. Add a module with Composer.
Enter the following command at the root of your site:
composer require onlyoffice/onlyoffice-drupal
Step 2: Enable the module
There are two options to enable the Drupal module.
Option 1. Using Drupal's User Interface.
Option 2. Using the command line.
Run the following Drush command, giving the project name as a parameter:
drush pm:enable onlyoffice
In Drupal, open ~/config/system/onlyoffice-settings page with administrative settings for ONLYOFFICE section. Enter the address to connect ONLYOFFICE Docs:
where documentserver is the name of the server with the ONLYOFFICE Document Server installed. The address must be accessible for the user browser and from the Drupal server. The Drupal server address must also be accessible from ONLYOFFICE Document Server for correct work.
Starting from version 7.2, JWT is enabled by default and the secret key is generated automatically to restrict the access to ONLYOFFICE Docs and for security reasons and data integrity. Specify your own Secret key in the Drupal administrative configuration. In the ONLYOFFICE Docs config file, specify the same secret key and enable the validation.
Edit files already uploaded to Drupal
All office files added to Media can be opened for editing. In the last table column, call the drop-down list and select the Edit in ONLYOFFICE action. The editor opens in the same tab. Users with Administrator rights are able to co-edit files using ONLYOFFICE Docs. All changes are saved in the same file.
Create new posts
When creating a post, you can add the new ONLYOFFICE element:
When you are done with the pre-settings, you can create posts on the Content tab. Click on the Add Content button and select the created content.
Specify title and select a file (if the content contains File fields).
For Media section, specify the name of the previously uploaded file.
Your site visitors will also be able to view the created page (People -> Permissions -> View published content).
The ONLYOFFICE integration follows the API documented here.
Download the Drupal ONLYOFFICE connector module here.