Monitoring & Logs
Logs are your app’s diary. Read it. Daily.
▶ the lesson · ~35s · narrated · tap for sound
the intro
Monitoring answers “is it up?” before users tell you. Logs record what happened inside. Together: uptime checks alert you the moment the site is down, structured logs tell you why, and error tracking gives you the exact line number.
fun fact ✦
The best monitoring setup is the one that pings your phone before your users open Twitter.
the docs
quick hits about Monitoring & Logs
15-second answers · interviews, tips, trivia & hidden gems
🎤 interview
Logs, metrics, traces?
📚 tutorial
Log levels actually mean things
🔧 useful
Know it is down before your users tweet
🔧 useful
Get the line number of every crash
💎 deep
JSON logs beat string spaghetti
💎 deep
The heartbeat trick