Use a namespace to join environment variables with configuration file and expose a configuration object.
Any configuration property can be set in environement variable or config file, an environment overrride all files.
A environment property is translate from NAMESPACE_MY_VAR to myVar in Configuration object
You can add additional path to look for config files. the symbol you must provide is extraConfigPaths, it's an array of string.
module.exports = {
key: 'value',
test: true,
ab: 'test'
}process.env['TEMOC_ENVIRONEMENT_PROPERTY'] = 'property-value'
import { Inject, Injectable, bootstrap } from 'comet-ioc'
import { Configuration, namespace } from "comet-config";
@Injectable()
export class App {
constructor(@Inject(Configuration) public conf: Configuration) { }
}
app = bootstrap(App, {
declarations: [
Configuration
],
constants: [{
provide: namespace,
useValue: 'temoc'
}]
})
console.log( app.conf.props.environementProperty ) // display: property-value