mapstructenv

README

Env. variable decode hook for mapstructure

This simple package contains a handy decode hook made to be used with https://github.com/go-viper/mapstructure, that translates the environment variable references in the given configuration into the actual values from the referenced environment variable.

Documentation

Overview

Package mapstructenv provides a decode hook function that replaces the raw value with an environment variable value under the same key.

Index

• func EnvReplacerHookFunc() mapstructure.DecodeHookFuncType

Functions

func EnvReplacerHookFunc

func EnvReplacerHookFunc() mapstructure.DecodeHookFuncType

EnvReplacerHookFunc returns a hook function that tries to replace the raw value with an environment variable value under the same key. An environment variable is a string that starts with "${" and ends with "}", e.g. "${SOME_CONFIGURATION_KEY}". If the environment variable does not exist, the raw value is returned.