env-expander

Enriches your configuration with environment variables;

$USERNAME=root
$PASSWORD=123456

envExpander.expand({
    "username": "ENV:$USERNAME",
    "password": "ENV:$PASSWORD",
    "loginUrl": "https://api.example.com/login"
});

=

{
    "username": "root",
    "password": "123456",
    "loginUrl": "https://api.example.com/login"
}

API

.expand(obj, options) will recursively expand values obj matching /ENV:$ENV_VAR_NAME. If options.env is given, then lookups will happen there instead of process.env.