Why You Should Add Logging To Your Code (and make it more helpful)
summary
Simple plumber API divides a by b and demonstrates adding log4r info and warning messages (e.g., "attempting to divide 100 by 4" and "must supply numerator or denominator"). Logs get written to syslog and routed to cloud monitoring such as Azure Monitor or AWS CloudWatch, where messages are filterable and alerts trigger email or SMS. The demo shows concrete logger setup, a syslog appender, end-to-end ingestion into the cloud dashboard, and functioning alert notifications.
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chapters (3)
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