Step 1: Setup Facebook as OAuth Provider

• First of all, Login/ Signup in Facebook developer console at https://developers.facebook.com/

• Go to My apps .

• Click on Create app to create a new app.

• Select what your app is going to work for.

• Enter the required details and click on create app.

• Complete the security check and click on Submit button.

• Select Facebook Login by clicking on the set up button .

• Select Facebook Login -> Settings under Products option in the navigation bar .

• Under Client OAuth Settings, enter the Callback/Redirect URL (from your miniOrange Oauth Client plugin) in the Valid OAuth Redirect URIs field. Click on the Save button to save your configurations.
  Most importantly, your Callback/Redirect URI should be https and not http. It is mandatory while configuring Facebook as an OAuth Server.

• Go to Settings -> Basic to view your App Id and App Secret Refer to the image below).

• Enter your Privacy Policy URL in the Privacy Policy URL field and choose a category from the dropdown in the Category field. Then, click on Save Changes button to save your configurations.
• Copy your App ID and your App Secret and save it in your miniOrange OAuth Client Plugin/Module. (under client id and client secret field respectively).

• Change you app status from In Development to Live by clicking on OFF as shown in the image below. Then, click on confirm to confirm your change of status.




Facebook Endpoints and Scope:




Client ID :	Click Here
Client Secret :	Click Here
Scope:	public_profile email
Authorize Endpoint:	https://www.facebook.com/dialog/oauth
Access Token Endpoint:	https://graph.facebook.com/v2.8/oauth/access_token
Get User Info Endpoint:	https://graph.facebook.com/me/?fields=id,name,email,age_range,first_name,gender,last_name,link

You have successfully configured Facebook as OAuth Provider for achieving Facebook login into your WordPress Site.

Step 2: Setup WordPress as OAuth Client

• Go to the Configure OAuth tab in the Plugin and search for Facebook app in the applications list, and select the Facebook app.

• Then, configure App Name, Client ID, Client Secret and Endpoints.
• Enter Scope value as public_profile email.
• Click on Save Settings to save the configuration.

You have successfully configured WordPress as OAuth Client for achieving Facebook login into your WordPress Site.

Step 3: User Attribute Mapping.

• User Attribute Mapping is mandatory for enabling users to successfully login into WordPress. We will be setting up user profile attributes for WordPress using below settings.

Finding user attributes

• Go to Configure OAuth tab. Scroll down and click on Test Configuration.

• You will see all the values returned by your OAuth Provider to WordPress in a table. If you don't see value for First Name, Last Name, Email or Username, make the required settings in your OAuth Provider to return this information.

• Once you see all the values in Test Configuration, go to Attribute / Role Mapping tab, you will get the list of attributes in a Username dropdown.

Step 4: Login Settings / Sign In Settings.

• The settings in SSO Settings tab define the user experience for Single Sign-On. To add a login widget on your WordPress page, you need to follow below steps.

Sign In Settings

• Go to WordPress Left Panel > Appearances > Widgets.
• Select miniOrange OAuth. Drag and drop to your favourite location and save.

• Open your WordPress page and you can see the login button there. You can test the SSO now.

Additional Resources

• What is OAuth 2.0?
• OAuth with facebook
• Frequently Asked Questions (FAQs)