angular 4 httpclient xml response

Question

const headers = new HttpHeaders({ 'Content-Type': 'text/xml' });
headers.append('Accept', 'text/xml');
headers.append('Content-Type', 'text/xml');
this.http.get('getxmlurl', {headers: headers}).subscribe(response => {
  return '1234';
});

Hi I am using angular 4 httpclient to make a http get request from a spring controller which returns a XML response.

The problem I have is the response is ALWAYS NULL even though I can see the xml response from the chrome developer network tab.

I thought it might be something to do with the request header, angular 4 defaults to json however I am unable to change the request header with the code above. Can someone please advice.

Thanks

Answer 1

Set the responseType to text:

this.http.get('getXmlUrl', { responseType: 'text' }).subscribe(response => {
  console.log(response);
});

Allowed values for responseType:

• arraybuffer
• blob
• json (default)
• text

The responseType value determines how a successful response body will be parsed.

See Angular Docs:
HttpRequest # responseType
HttpClient # request()