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package main
import (
"log"
"os"
"github.com/knadh/koanf/parsers/json"
"github.com/knadh/koanf/providers/appconfig/v2"
"github.com/knadh/koanf/v2"
)
// Global koanf instance. Use "." as the key path delimiter. This can be "/" or any character.
var k = koanf.New(".")
func main() {
provider, err := appconfig.Provider(appconfig.Config{
Application: os.Getenv("AWS_APPCONFIG_APPLICATION"),
ClientID: os.Getenv("AWS_APPCONFIG_CLIENT_ID"),
Configuration: os.Getenv("AWS_APPCONFIG_CONFIG_NAME"),
Environment: os.Getenv("AWS_APPCONFIG_ENVIRONMENT"),
})
if err != nil {
log.Fatalf("Failed to instantiate appconfig provider: %v", err)
}
// Load the provider and parse configuration as JSON.
if err := k.Load(provider, json.Parser()); err != nil {
log.Fatalf("error loading config: %v", err)
}
k.Print()
// Watch for all configuration updates.
provider.Watch(func(event interface{}, err error) {
if err != nil {
log.Printf("watch error: %v", err)
return
}
log.Println("config changed. Reloading ...")
k = koanf.New(".")
k.Load(provider, json.Parser())
k.Print()
})
log.Println("waiting forever.")
<-make(chan bool)
}
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