tiny-viper

A minimalistic approach to spf13/viper.

Features

• Read ENV variables into a struct
• Read a .env file into a struct
• < 110 source lines of code
• No dependencies

Only string fields are supported. Allows missing env variables when marked with "omitempty"

Usage

package main

import (
	"github.com/nobloat/tinyviper"
	"fmt"
)

type Config struct {
	UserConfig struct {
		Email    string `env:"MY_APP_EMAIL"`
		Password string `env:"MY_APP_PASSWORD"`
        someOtherProperty string
	}
	Endpoint string `env:"MY_APP_ENDPOINT"`
  AppUrl string `env:MY_APP_URL,omitempty`
}

func main() {
  cfg := Config{Endpoint: "some default endpoint"}
  err := tinyviper.LoadFromResolver(&cfg, tinyviper.NewEnvResolver(), tinyviper.NewEnvFileResolver(".env.sample"))
  if err != nil {
    panic(err)
  }

  fmt.Println("%+v", cfg)
}