koenig-dominik/env-json-parser

Library that parses JSON structures out of environment variables

Env JSON parser

Library that parses JSON structures out of environment variables

Installation

npm install --save env-json-parser

Usage

Paths are constructed as follows:
. separates nested objects
: separates arrays

Values always need to be JSON encoded

Example

Environment

DEMO_KEY1="test"
DEMO_KEY2.SUBKEY.NESTEDSUBKEY=42
DEMO_KEY3:0=true
DEMO_KEY4={"subkey":"test"}

Typescript

// import the library
import {EnvJsonParser} from 'env-json-parser';

// create an instance of the parser with the prefix as parameter, names are case insensitive
const envJsonParser = new EnvJsonParser('DEMO_');

// get the complete structure as object
envJsonParser.get();
/*
{
    key1: "test",
    key2: {
        subkey: {
            nestedsubkey: 42
        }
    },
    key3: [
        true
    ],
    key4: {
        subkey: "test"
    }
}
*/

// get a part of the structure
envJsonParser.get('key2.subkey');
/*
    {
        nestedsubkey: 42
    }
*/