Not possible to create Permalink for backlog messages

[luciano-coder]

Hi,

I'm trying to create a Permalink in the alert message but it's currently not possible because the index field is not made available to the Slack message builder.

Example Permalink
https://graylog.mydomain.com/messages/graylog_1/8808d761-afab-11e9-87f9-023d32ba1fd0

• graylog_1 is the index which contains the message (missing)
• 8808d761-afab-11e9-87f9-023d32ba1fd0 is the id (available)

Please can you make this field available so that it's possible to do the following in the custom message:
https://graylog.mydomain.com/messages/${message.index}/${message.id}

Many Thanks