How to create an Observable from static data similar to http one in Angular?
<p>I am having a service that has this method:</p>

<pre><code>export class TestModelService {

    public testModel: TestModel;

    constructor( @Inject(Http) public http: Http) {
    }

    public fetchModel(uuid: string = undefined): Observable&lt;string&gt; {
        if(!uuid) {
            //return Observable of JSON.stringify(new TestModel());
        }
        else {
            return this.http.get("http://localhost:8080/myapp/api/model/" + uuid)
                .map(res =&gt; res.text());
        }
    }
}
</code></pre>

<p>in the component's constructor I am subscribing like this:</p>

<pre><code>export class MyComponent {
   testModel: TestModel;
   testModelService: TestModelService;

   constructor(@Inject(TestModelService) testModelService) {
      this.testModelService = testModelService;

      testService.fetchModel("29f4fddc-155a-4f26-9db6-5a431ecd5d44").subscribe(
          data =&gt; { this.testModel = FactModel.fromJson(JSON.parse(data)); },
          err =&gt; console.log(err)
      );
   }
}
</code></pre>

<p>This works if an object comes from the server but I am trying to create an observable that will work with the given <code>subscribe()</code> call for a static string (this happens when <code>testModelService.fetchModel()</code> does not receive an uuid) so there is seamless handling in both cases.</p>