Facebook connector

The official Logto connector for Facebook social sign-in.

Table of contents

• Facebook connector
  • Get started
    • Register a Facebook developer account
    • Set up a Facebook app
  • Compose the connector JSON
  • Test sign-in with Facebook's test users
  • Publish Facebook sign-in settings
  • Config types
  • References

Get started

The Facebook connector provides a concise way for your application to use Facebook's OAuth 2.0 authentication system.

Register a Facebook developer account

Register as a Facebook Developer if you don't already have one

Set up a Facebook app

1. Visit the Apps page.
2. Click your existing app or create a new one if needed.
   • The selected app type is up to you, but it should have the product Facebook Login.
3. On the app dashboard page, scroll to the "Add a product" section and click the "Set up" button on the "Facebook Login" card.
4. Skip the Facebook Login Quickstart page, and click the sidebar -> "Products" -> "Facebook Login" -> "Settings".
5. In the Facebook Login Settings page, fill ${your_logto_origin}/callback/${connector_id} in the "Valid OAuth Redirect URIs" field. The connector_id can be found on the top bar of the Logto Admin Console connector details page. E.g.:
   • https://logto.dev/callback/${connector_id} for production
   • https://localhost:3001/callback/${connector_id} for testing in the local environment
6. Click the "Save changes" button at the bottom right corner.

Compose the connector JSON

1. In the Facebook app dashboard page, click the sidebar -> "Settings" -> "Basic".
2. You will see the "App ID" and "App secret" on the panel.
3. Click the "Show" button following the App secret input box to copy its content.
4. Fill out the Logto connector settings:
   • Fill out the clientId field with the string from App ID.
   • Fill out the clientSecret field with the string from App secret.
   • Fill out the scope field with a comma or space separated list of permissions in string. If you do not specify a scope, the default scope is email,public_profile.

Test sign-in with Facebook's test users

You can use the accounts of the test, developer, and admin users to test sign-in with the related app under both development and live app modes.

You can also take the app live directly so that any Facebook user can sign in with the app.

• In the app dashboard page, click the sidebar -> "Roles" -> "Test Users".
• Click the "Create test users" button to create a testing user.
• Click the "Options" button of the existing test user, and you will see more operations, e.g., "Change name and password".

Publish Facebook sign-in settings

Usually, only the test, admin, and developer users can sign in with the related app under development mode.

To enable normal Facebook users sign-in with the app in the production environment, you maybe need to switch your Facebook app to live mode, depending on the app type. E.g., the pure business type app doesn't have the "live" switch button, but it won't block your use.

1. In the Facebook app dashboard page, click the sidebar -> "Settings" -> "Basic".
2. Fill out the "Privacy Policy URL" and "User data deletion" fields on the panel if required.
3. Click the "Save changes" button at the bottom right corner.
4. Click the "Live" switch button on the app top bar.

Config types

| Name | Type | |--------------|--------| | clientId | string | | clientSecret | string | | scope | string |

References

• Facebook Login - Documentation - Facebook for Developers
  • Manually Build a Login Flow
  • Permissions Guide