Introduction

config is a simple golang library and designed to read configurations from JSON, Yaml files, environment variables and command line. config depends on go-yaml to anlayze Yaml file and use built-in golang library to handle JSON file.

Installation

1. Install Yaml library first:

go get gopkg.in/yaml.v2

2. Install config library:

go get github.com/eschao/config

Usage

Defines default values

config library supports defining a default value for structure members by using default keyword in structure tags

  type Database struct {
    Username string `default:"admin"`
    Password string `default:"admin"`
  }

After specified default value in tags, calls config.ParseDefault(interface{}) to set it on structure instance, example codes as the below:

  dbConfig := Database{}
  config.ParseDefault(&dbConfig)