public function get_item_schema() {
		$schema = array(
			'$schema'    => 'http://json-schema.org/draft-04/schema#',
			'title'      => 'bp_notifications',
			'type'       => 'object',
			'properties' => array(
				'id'                => array(
					'context'     => array( 'view', 'edit' ),
					'description' => __( 'A unique numeric ID for the notification.', 'buddypress' ),
					'readonly'    => true,
					'type'        => 'integer',
				),
				'user_id'           => array(
					'context'     => array( 'view', 'edit' ),
					'description' => __( 'The ID of the user the notification is addressed to.', 'buddypress' ),
					'type'        => 'integer',
					'default'     => bp_loggedin_user_id(),
				),
				'item_id'           => array(
					'context'     => array( 'view', 'edit' ),
					'description' => __( 'The ID of the item associated with the notification.', 'buddypress' ),
					'type'        => 'integer',
				),
				'secondary_item_id' => array(
					'context'     => array( 'view', 'edit' ),
					'description' => __( 'The ID of the secondary item associated with the notification.', 'buddypress' ),
					'type'        => 'integer',
				),
				'component'         => array(
					'context'     => array( 'view', 'edit' ),
					'description' => __( 'The name of the BuddyPress component the notification relates to.', 'buddypress' ),
					'type'        => 'string',
				),
				'action'            => array(
					'context'     => array( 'view', 'edit' ),
					'description' => __( 'The name of the component\'s action the notification is about.', 'buddypress' ),
					'type'        => 'string',
				),
				'date'              => array(
					'description' => __( 'The date the notification was created, in the site\'s timezone.', 'buddypress' ),
					'type'        => 'string',
					'format'      => 'date-time',
					'context'     => array( 'view', 'edit' ),
				),
				'is_new'            => array(
					'context'     => array( 'view', 'edit' ),
					'description' => __( 'Whether it\'s a new notification or not.', 'buddypress' ),
					'type'        => 'integer',
					'default'     => 1,
				),
			),
		);

		/**
		 * Filters the notifications schema.
		 *
		 * @param array $schema The endpoint schema.
		 */
		return apply_filters( 'bp_rest_notification_schema', $this->add_additional_fields_schema( $schema ) );
	}