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Watching Configuration Files

Explore how to implement dynamic configuration watching in Go command-line programs using the Viper library. Understand how to detect and respond to real-time changes in configuration files, and learn to manage multiple configuration files effectively by using multiple Viper instances to enhance your program's flexibility and responsiveness.

Watching configuration files is a very exciting feature that opens the door for a dynamic configuration where you can control the behavior of your program without re-running it. We will also demonstrate how Viper supports multiple configuration files.

Watching configuration files for changes

So far, we have read the configuration once, but some programs run for a long time and need to respond to changes ...