config-kit

A universal, layered configuration system.

Features

• Layered data architecture
• Schema validation using joi
• Support for .json, .js, and .xml data stores
• Default values
• Environment variable precedence
• Define custom layers
• Extensible data store interface
• Support for array type values
• Apply parent directory owner when running as sudo

Installation

npm install config-kit --save

Usage

import Config from 'config-kit';

const config = await new Config().init();

await config.set('foo.bar', true);

console.log(config.get('foo')); // { "bar": true }

await config.load('/path/to/myconfig.json');

await config.set('foo.baz', 'pow');

await config.save();

Migrating from v1

v2 introduces major breaking API changes. This package was refactored to be a ES module. This means .js config and schema files also need to be ES modules. Since you can't synchronously import ES modules, there was no choice but to make nearly every API async.

When creating a new Config instance, simply prepend with await and call init() with the constructor options:

v1

const cfg = new Config({ /* opts */ });

v2

const cfg = await new Config().init({ /* opts */ });

The following functions are now async: load(), pop(), push(), save(), set(), shift(), unshift().

v1

cfg.load({ file: '/path/to/file' });
cfg.set('foo', 'bar');
cfg.push('baz', 'wiz');
cfg.save();

v2

await cfg.load({ file: '/path/to/file' });
await cfg.set('foo', 'bar');
await cfg.push('baz', 'wiz');
await cfg.save();

License

This project is open source under the Apache Public License v2 and is developed by Axway, Inc and the community. Please read the LICENSE file included in this distribution for more information.