Getting the alert to a human
A check that exits non-zero warns nobody: wiring a unit failure to a send, with OnFailure and real email.
24 minutesTechnical content last reviewed on 17 Sept 2026
This lesson is for signed-in learners
Create an account to subscribe and record your learning progress.
What this lesson builds
- Designing a check that can fail and an alert somebody acts on
- Keeping secrets out of the places that publish them