You're seeing just the function get_permalink, go back to Slack.Web.Chat module for more information.
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get_permalink(channel, message_ts, optional_params \\ %{})

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Retrieve a permalink URL for a specific extant message.

Required Params

  • channel - The ID of the conversation or channel containing the message.
  • message_ts - A message's ts value, uniquely identifying it within a channel. ex: 1405894322.002768

Errors the API can return:

  • channel_not_found - Value passed for channel was invalid.
  • message_not_found - No message exists with the requested timestamp.