HTTP: Setup for server communication

      
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      import { bootstrapApplication } from '@angular/platform-browser';
import { HttpClientModule } from '@angular/common/http';
import { importProvidersFrom } from '@angular/core';

import {AppComponent} from './app/app.component';

bootstrapApplication(AppComponent, {
  providers: [
    importProvidersFrom(HttpClientModule),
  ]
});
    

      
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      import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Injectable()
export class ConfigService {
  constructor(private http: HttpClient) { }
}