Wait for get request - Angular 2
<p>I get a <strong>GET request</strong> and I would like to wait for a response to run <strong>code</strong> how do i do this?</p>

<p>My code</p>

<pre><code>valid()
{
    let headers = new Headers({ 'Content-Type': 'application/json'});
    let options = new RequestOptions({ headers: headers, method: "get" }); 
    return this.http.get(this.urlstring+ "getisvalid" , options ).toPromise().then(response =&gt; response.json());
}

//Code that is in the function

     this._service.valid().then(resut =&gt; this.resut = resut);
</code></pre>