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Something broke for a user last week and the only way I found out was because they emailed me.
What you'll have at the end
A live dashboard that captures every production crash, inside a request and in background code alike, the moment it happens, with a readable trace and a message that reaches you without you having to check.
You need
An Express API already deployed and reachable at a live URL, reading its real secrets from your host's own stored settings rather than a committed file.
Not covered
Performance tracing, session replay, or any dashboard beyond crash events; this stops at getting a crash captured, readable, tagged to its deploy, and alerted on.
Leans on
Add a health check endpoint
go here first if you haven't wired a readiness check yet, since that catches a bad deploy before it ever goes live, a different silent failure than a crash after it's already live
Roll back a bad deploy in minutes instead of hours
once an event here names the exact deploy that caused it, go here to get back to the last good one fast
Checked 25 Aug 2026
Part of the Full-Stack Application Deployment cookbook