Adding Logs in the App
Explore how to add detailed logs in a Go application using the log package. Understand key logging components like timestamps and message formatting. Learn how to print logs to the console and persist them to files for better error tracking and app monitoring.
We'll cover the following...
Logging is the process of printing or outputting information about an application from its source code. Logs are an indispensable part of an application because they:
Keep a history of application behavior, including information related to business, the functions that were executed, and the data the functions received and processed.
Store any errors that might have occurred and their traces. This is especially useful in cases when the app malfunctions.
Help understand the workflow in an app.
Can be used for analytics to understand the traffic and usage patterns of the app.
While these benefits sound awesome, logs are only as good as their keepers. That's why ...