title: Using ngrx-data how to configure the app to fetch data of specific entities from specific urls
body: <p>If we follow ngrx-data example and look at the <a href="https://github.com/johnpapa/angular-ngrx-data/blob/master/docs/entity-dataservice.md" rel="nofollow noreferrer">Entity DataService</a>, we can fetch the Hero data that we have in-memory (hard-coded) without any configuration. The default will work the same as if we configured:</p>
  
  <pre><code>const defaultDataServiceConfig: DefaultDataServiceConfig = {
    root: 'api',      // or a running server url, e.g: 'http://localhost:4000/api'
    timeout: 3000,    // request timeout
  }
  </code></pre>
  
  <p>and in e.g:  EntityStoreModule</p>
  
  <pre><code>@NgModule({
    providers: [{ provide: DefaultDataServiceConfig, useValue: defaultDataServiceConfig }]
  })
  </code></pre>
  
  <p>Question:</p>
  
  <p>How will we configure our app to fetch data for entity "Heros" from the default source:</p>
  
  <pre><code>root: 'api'
  </code></pre>
  
  <p>and data for entity "Villans" from a URL:</p>
  
  <pre><code>root: 'http://localhost:4000/villans'
  </code></pre>
  
  <p>and data for other entities from their (other/various) respective URLs ...?</p>