Validate on access

[justsml]

Why

Some applications may prefer to delay evaluation of the validation.

Pros

• Stack trace leads to the usage location, not the config file.

Cons

• May hide config problems during development & testing.

Dev notes

Possible implementations:

• get getter wrapper object?
• Or ES6 Proxy?

Considerations

• Set via an option?
  • Per value?
  • Set per config set?

Usage?

Option naming:

• deferred: true
• delayed: true
• validate: 'delayed',
• validateOn: 'load' | 'access'
• ?

Some Examples

1/3: Per Config: deferred option

import { autoConfig } from '@elite-libs/auto-config';

const config = autoConfig({
  port: {
    args: ['--port', 'PORT'],
    deferred: true,
    required: true,
  },
});

2/3: autoConfig Instance Default

import { autoConfig } from '@elite-libs/auto-config';

const config = autoConfig({
  port: {
    args: ['--port', 'PORT'],
    required: true,
  },
}, {
  deferred: true
});

3/3: Global Override

import { autoConfig } from '@elite-libs/auto-config';

autoConfig.deferred = true;

const config = autoConfig({
  port: {
    args: ['--port', 'PORT'],
    required: true,
  },
});