Node Config Battle

A scientific comparison of Node.js config packages ::

Compared packages

• convict

• config

• nconf

Selected requirements

All tests/comparisons should include the following steps we selected as requirements to represent a reasonable workflow.

• Define a hierarchical configuration file

• Override one value with an environment variable

• Override another key with provided command arguments

• Override a few keys with additional file contents (for example local development environment definitions)

• One key should be a password and its value should not be set within the JSON, but rather through an environment variable, if a supplied key is missing or has an incorrect value, fail fast with exception

• Fail fast if one mandatoiry config key wasn't provided

• Cast keys to specific pre-defined types

• Define default values for keys