configuration.module.ts

import { NgModule, ModuleWithProviders } from "@angular/core";
import { CommonModule } from "@angular/common";
import { ConfigurationContext } from "./configuration-context";
import { HttpClientModule } from "@angular/common/http";

@NgModule({
  imports: [CommonModule],
  providers: []
})
export class ConfigurationModule {
  static forRoot(configContext: ConfigurationContext): ModuleWithProviders {
    console.log(`Preparing to handle configuration context.`);
    return {
      ngModule: ConfigurationModule,
      providers: [
        {
          provide: ConfigurationContext,
          useValue: configContext
        },
        HttpClientModule
      ]
    };
  }
}