node-getenv

Get and parse environment variables more easily.

npm i node-getenv --save

const env = require('node-getenv')

// PORT=8080 node index.js
const port = env.getNum('PORT')  // 8080 (number)


// CONSUMER_ON=on node index.js
env.getBool('CONSUMER_ON')  // true

// node index.js
env.getNum('CONCURRENCY', 4)  // 4 (default value)

// node index.js
env.requireNum('CONCURRENCY')   // throw error
env.requireNumOrExit('CONCURRENCY')   // log error, then process exit

getNum(key, defaults)

Get environment variate in number type.

If the environment variate is undefined or not a valid number, return the default value.

getStr(key, defaults)

Get environment variate in string type.

If the environment variate is undefined, return the default value.

getBool(key, defaults)

Get environment variate in boolean type, supported values without case sensitive:

• Truly: true, yes, on, open, t, y, 1.

• Falsely: false, no, off, close, f, n, 0.

If the environment variate is undefined or unsupported, return the default value.

bindEnv(defaultValues)

Bind environment variates with default values, then returns them. It has no effect on real environmental variables (in process.env).

License: MIT