A Configuration service that provides the configuration context to libraries in the application workspace.

configuration.service.ts

import { Injectable, Optional } from "@angular/core";
import { ConfigurationContext } from "./configuration-context";
import { Subject, ReplaySubject } from "rxjs";
import { IConfiguration } from "./i-configuration";

@Injectable({
  providedIn: "root"
})
export class ConfigurationService {
  settings$: Subject<IConfiguration> = new ReplaySubject<IConfiguration>(1);

  constructor(@Optional() context: ConfigurationContext) {
    if (context) {
      this.settings$.next(context.config);
    }
  }
}