Configuration for the available plugins are stored in a JSON encoded string. The format of this document are available with the Plugins Overview.
You can override the plugin config by specifying the content in the
Bundled Plugin Configuration
Some of the core plugins that are bundled with Talk require specific configuration to be available.
TALK_FACEBOOK_APP_ID(required) - the Facebook app id for your Facebook Login enabled app.
TALK_FACEBOOK_APP_SECRET(required) - the Facebook app secret for your Facebook Login enabled app.