Can't get nested key from env to override yaml config file

[yusufmalikul]

This is my config:

stripe:
  secret_key: sk_fromconfig

I have this code:

package main

import (
	"fmt"

	viper "github.com/spf13/viper"
)

type Config struct {
	Stripe Stripe
}

type Stripe struct {
	SecretKey string `mapstructure:"secret_key"`
}

func main() {
	viper.SetConfigName("config")
	viper.SetConfigType("yaml")
	viper.AddConfigPath(".")

	viper.AutomaticEnv()
	_ = viper.ReadInConfig()

	var config Config
	_ = viper.Unmarshal(&config)

	fmt.Println(config.Stripe.SecretKey)
}

Why viper don't take value from env?

% echo $STRIPE_SECRET_KEY
sk_fromenv
% go run main.go 
sk_fromconfig

I expected this:

% echo $STRIPE_SECRET_KEY
sk_fromenv
% go run main.go 
sk_fromenv

I tried viper.BindEnv("STRIPE_SECRET_KEY") and viper.SetEnvPrefix("STRIPE") but didn't work.

[yusufmalikul]

Solved here: https://stackoverflow.com/questions/72414729/cant-get-nested-key-from-env-to-override-yaml-config-file-using-viper#72415593