Slack: Add ability to mention user by username/email

[mkantzer]

The slack API allows mentioning users via their userID like so:

Hey <@U024BE7LH>, thanks for submitting your report.

However, almost any use-case for Notifications won't include the actul slack userID; Instead, it will have things like an email associated with a git commit.

The slack documentation (linked below) recommends using the users.list api to retrieve the ID via some other unique piece of information (such as an email).

Can we expand the engine to parse for things formatted as something like {{.slack.userEmail}}, and do a lookup?

It would be equally helpful if we could do the same for:

• channels: Why not join <#C123ABC456>?
• groups: Hey <!subteam^SAZ94GDB8>, there's a new task in your queue.

Reference:

• https://api.slack.com/reference/surfaces/formatting#mentioning-users
• https://api.slack.com/reference/surfaces/formatting#linking-channels

[trv-bmpage]

Is there an ETA on this?

[evgenymo]

+1

[aburan28]

I can work on trying to implement this functionality

[nodablock]

@aburan28 wondering if you were progressing on it?