viper env and map structure

In project I set config like this

• map structure to map config.yaml with model
• use viper to load it

type Config struct {
 MyString string      `mapstructure:"MyString"`
 MyInt    int         `mapstructure:"MyInt"`
 MyBool   bool        `mapstructure:"MyBool"`
 MyArray  StringSlice `mapstructure:"MyArray"`
}

func main() {

 // Automatically load environment variables into Viper
 viper.AutomaticEnv()

 // Create a configuration structure
 var config Config

 // Use Viper's Unmarshal to decode environment variables into the structure
 if err := viper.Unmarshal(&config); err != nil {
  fmt.Println("Error decoding configuration:", err)
  return
 }

}

but in server use env instead config so use AutomaticEnv for check if have env key match will replace it

I used to set MyArray separate by space that when I don’t use map structure

MyArray=aaa bbb ccc

I set value directly by viper.GetStringSlice and It work

Config.MyArray=: viper.GetStringSlice("MyArray"),

But if use map structure default delimiter is comma!!

if use space delimiter string cannot separate to array