Keep a paper trail of what your app is doing - shippingszn launch readiness

Logging is your app writing down what it did, when, and for whom — like a security camera for code. When something goes wrong (a charge failed, an account got locked, data is missing), good logs let you reconstruct exactly what happened. Bad logs leave you guessing.

When you eventually have a weird bug or a user complaint that doesn't match what you see, logs are the difference between a 5-minute fix and a multi-day investigation. They're also your evidence if you ever have to prove what happened (security incident, billing dispute, abuse report).

Owner verification required: Logging is only launch-ready if the right events arrive in a searchable production sink without secrets. The scanner cannot prove retention, redaction, or dashboard access from code alone.

The Launch Fix Kit keeps scan-specific findings, file and line evidence, AI-builder punch-list tasks, and verification steps tied to the paid report.

Use a structured logger (one that writes JSON, not raw text) — most frameworks have one built in.
Log every login, signup, password change, payment, and important user action.
Log every error with full context (which user, which endpoint, what they were doing).
NEVER log passwords, API keys, full credit card numbers, or any other secret. This is itself a security incident waiting to happen.
Keep logs for at least 30 days so you can investigate slow-burning issues.

Run the scanner | Unlock Launch Fix Kit

Canonical URL: https://shippingszn.com/i/logging/