Question 1

How do I bind environment variables to a struct in Gookit/config?

Accepted Answer

Use the LoadOSEnvs method to map environment variables to config keys, then bind to a struct with tags like `mapstructure:"key"`. Enable ParseEnv option to interpolate values like `${ENV_VAR}` directly in your configuration.

Question 2

Can Gookit/config handle YAML files with comments or anchors?

Accepted Answer

It depends on the underlying YAML parser (e.g., go-yaml). Gookit/config uses external drivers, so advanced YAML features may not be fully supported unless the driver implements them.

Question 3

What's the difference between Gookit/config and Viper for Go?

Accepted Answer

Viper is more established and tightly integrated with Cobra for CLI apps, while Gookit/config focuses on extensibility with custom drivers and event hooks. Gookit/config may be preferable if you need fine-grained control over format support, but Viper has a larger ecosystem.

Question 4

How to automatically reload config when files change?

Accepted Answer

Use the fsnotify library to watch loaded files and hook into the 'reload.data' event. The README provides an example in _examples/watch_file.go, but this requires additional setup and dependencies.

Question 5

Does Gookit/config support default values for missing fields?

Accepted Answer

Yes, you can set default values using struct tags like `default:"value"` and enable the ParseDefault option. This works during binding to ensure missing config fields are populated with defaults.

Question 6

Is Gookit/config good for microservices with dynamic config?

Accepted Answer

Yes, its event hooks and support for remote URLs make it suitable for dynamic environments. However, for cloud-native setups, you may need to implement custom loaders for services like etcd or Consul.

config

What is config?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions