I've made this module in order to allow developers to create applications with the different work stages, such as production, testing, development, etc.

This module allows you to have a default configuration file and change its specific values according to your NODE_ENV variable.

How to use

To use this module with the default values, you just need to get the configuration like this:

const config = require('config-importer')()

If you want to change the options, you need to add options as an argument:

const options = {
    path: "configPath"
}

const config = require('config-importer')(options)

Options

You can leave the options empty. The default values are:

{
    "path": "config",   
    "default": "default",
    "debug": false
}

• path: represents the directory where your configuration files are stored in relation to your project root directory.
• default: represents the default configuration file name, without the .json extension.
• debug: makes this module output debug log (i.e. config directory, thrown exceptions).

Example

In this scenario, you have your default configuration in config/default.json and you are running your application with NODE_ENV=dev npm start.

This module overwrites the values from default.json with the ones set on dev.json, as shown:

default.json

{
    "title": "Application title",
    "mongodb": {
        "uri": "https://productionhost:9999/db",
        "username": "username",
        "password": "password"
    }
}

dev.json

{
    "mongodb": {
        "uri": "https://devhost:9999/db",
        "extra": "param"
    }
}

Then, the configuration on your application should be:

{
    "title": "Application title",
    "mongodb": {
        "uri": "https://devhost:9999/db",
        "username": "username",
        "password": "password",
        "extra": "param"
    }
}