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How we scaled Slack to support 1000s of developers
Here’s how we built a two-way Slack bridge with full impersonation to deliver white glove support to thousands of Railway developers from our help center.
When prepping for the first version for release, I neglected to properly simulate the external party within a Slack connect channel in local dev. Apparently, non-workspace members aren’t allowed to call the bot hosted by the parent Slack Connect channel- so this means that someone from an external company can’t type “/support” and get the modal. Now with zero downtime deploys using Railway Healthchecks, and if I likely introduce a runtime error- I can sleep easy knowing that we won’t lose any messages.
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