fluid-config

Fluid Config

An experiment in flexible configuration management

Basic usage

The goal is to be able to specify config values from multiple sources to be made available through runtime injection.

import {Value} from "fluid-config"

export class SomeClass {
	@Value() private aParam: string;
	@Value("config.var") private otherValue: string;

	public printValues() {
		console.log(this.aParam);
		console.log(this.otherValue);
	}
}

The @Value annotation will specify that a variable must be resolved from the ResolutionChain, which can contain many individual resolvers (currently environment and config.json). Additional resolvers can be specified by either setting a new ResolverChain or explicitly instantiating a Configurator instance.

import {Value, setResolutionChain, ResolutionChain, EnvirnonmentResolver} from "fluid-config"

const customChain = new ResolutionChain()
    // use built in resolver
    .register(new EnvirnonmentResolver())
    // custom resolver
    .register({resolve(path: string) {return "somevalue"}})

// Override default global chain
setResolutionChain(customChain);

export class SomeClass {
	@Value() private aParam: string;
    @Value("config.var") private otherValue: string

	public printValues() {
		console.log(this.aParam);
	}
}