如何在我的angular 2应用中从命令行传递后端api url？

import { Component, Inject, PLATFORM_ID } from '@angular/core';
import { isPlatformBrowser } from '@angular/common';

@Component({
  selector: 'app-root',
  template: '<router-outlet></router-outlet>'
})
export class AppComponent {
  constructor(
    @Inject(PLATFORM_ID) private platformId: Object,
    @Inject(APP_BASE_HREF) private baseHref: string
  ) {
    if (isPlatformBrowser(this.platformId)) {
      const apiUrl = this.getApiUrlFromCommandLine();
      // 使用获取到的apiUrl进行后续操作
    }
  }

  private getApiUrlFromCommandLine(): string {
    const args = window.location.search.substr(1).split('&');
    for (const arg of args) {
      const [key, value] = arg.split('=');
      if (key === 'apiUrl') {
        return decodeURIComponent(value);
      }
    }
    return '';
  }
}

http://example.com?apiUrl=http%3A%2F%2Fbackend-api.com%2Fapi

import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root'
})
export class ApiService {
  private apiUrl: string;

  setApiUrl(apiUrl: string) {
    this.apiUrl = apiUrl;
  }

  getApiUrl(): string {
    return this.apiUrl;
  }
}