Drupal Discord Single Sign-On (SSO) integration using OAuth / OpenID connect

Drupal OAuth Client module enables Single Sign-On i.e. SSO for a Drupal site with any Identity Provider using OAuth or OpenID connect protocol. Here we will go through the steps to configure the module with the Discord. Once this configuration is done, users will be able to log in to the Drupal site using their Discord credentials. This module is compatible with Drupal 7, Drupal 8, Drupal 9, and Drupal 10.
The integration of Drupal with Discord simplifies and secures the login process, completely removing the need to store, remember, and reset multiple passwords.

Setup Drupal as OAuth Client:

• After installing the module, navigate to the Configuration -> miniOrange OAuth Client Configuration -> Configure OAuth tab and select Discord from the Select Application dropdown list.
• Copy the Callback/Redirect URL and keep it handy.

  Note:- If your provider only supports HTTPS Callback/Redirect URLs and you have an HTTP site, please make sure to enable the 'Enforce HTTPS Callback URL' checkbox at the bottom of the tab.

• In the Display Name text field, enter the name of Application. For example, Discord

Create Application in Discord:

• Log in to the Discord Developer portal.
• Select Application from the left navigation panel, then click the New Application button.

• A popup will display, in which you can enter the name of the application in the Name text field.
• Then, click the checkbox to agree to the Discord Developer terms and conditions before clicking the CREATE button.

• Under OAuth2 -> General, click the Add Redirect button and enter the copied Callback/Redirect URL (from step 1) into the Redirects text field.
• Once completed, click the Save Changes button.

Integrating Drupal with Discord

• Navigate to the Discord portal.
• Under the OAuth2 panel, copy the CLIENT ID from the Client information section.

• In Drupal’s Configure OAuth tab paste the copied Client ID into the Client ID textfield.

• Go, back to the Discord portal.
• Click the Reset Secret button under CLIENT SECRET in the Client information section.

• Open a REGENERATE SECRET KEY? popup and click the Yes, do it! button.

• By clicking the Copy button, you can copy CLIENT SECRET from the Client information area.

• Navigate to the Drupal's Configure OAuth tab and paste the CLIENT SECRET into the Client Secret text field.

• Please confirm the Scope and Endpoints from the table below and click on the Save Configuration button.

  Scope	identify+email
  Authorize Endpoint	https://discordapp.com/api/oauth2/authorize
  Access Token Endpoint	https://discordapp.com/api/oauth2/token
  Get User Info Endpoint	https://discordapp.com/api/users/@me

Test Connection between Drupal and Discord:

• Click on the Perform Test Configuration button to test the connection between Drupal and Discord.

• On a Test Configuration popup, if you don't have an active session in Discord on the same browser, you'll be prompted to sign in to Discord. Once successfully logged in, you'll receive a list of attributes retrieved from Discord.
• Select the Email Attribute from the dropdown menu in which the user's email ID is obtained and click on the Done button.

• On the Attribute & Role Mapping tab, please select the Username Attribute from the dropdown list and click on the Save Configuration button.

Please note: Mapping the Email Attribute is mandatory for Single Sign-On.

Congratulations! You have successfully configured Discord as OAuth/OpenID Provider and Drupal as an OAuth Client.

How to perform the SSO?

• Now, open a new browser/private window and go to your Drupal site login page.
• Click on the Login using the Discord link to initiate the SSO from Drupal.
• If you want to add the SSO link to other pages as well, please follow the steps given in the image below: