Setup global Http request Headers on angular dart

Question

How can I configure the Http service adding headers to the call.

I try the following

class GlobalHttpHeaders {
  static setup(Injector inj){
    HttpDefaultHeaders http = inj.get(HttpDefaultHeaders);
    http.setHeaders([{"X-Requested-With":"XMLHttpRequest"}], "COMMON");
  }
}

And in the app the last line is:

Injector inj = ngBootstrap(module: new SiteIceiModule());
  GlobalHttpHeaders.setup(inj);

But that don't work.

Answer 1

Have you tried something like this:

class SiteIceiModule extends Module { 
  SiteIceiModule() {
    // ...
    factory(HttpDefaultHeaders, (inj) => inj.get(HttpDefaultHeaders)..setHeader({...}));
    // ...
  }
}

Answer 2

(I think) I got it working with:

@Injectable()
class MyDefaultHeaders extends HttpDefaultHeaders {
  @override
  setHeaders(Map<String, String> headers, String method) {
    super.setHeaders(headers, method);
    //if(method.toUpperCase() == 'POST') {
    headers['X-Requested-With'] = 'XMLHttpRequest';
    //}
  }
}


@NgComponent(selector: 'my-comp', publishAs: 'ctrl', template:
    '<div>My component</div>')
class MyComponent {
  Http http;
  MyComponent(this.http) {
    //http.request('http://www.google.com/');
    var h = http;
        // debugger didn't show http so I filed https://code.google.com/p/dart/issues/detail?id=17486

    Map m = {};
    http.defaults.headers.setHeaders(m, 'GET');
    print(m);
    // prints:
    // {Accept: application/json, text/plain, */*, X-Requested-With: XMLHttpRequest}

  }
}


class MyAppModule extends Module {
  MyAppModule() {

    type(MyComponent);

    type(HttpDefaultHeaders, implementedBy: MyDefaultHeaders);

    init.createParser(this);
  }
}

I couldn't examine http to verify the headers because the debugger didn't show me the field but as stated in the comment when I apply headers.setHeaders do a map inside MyComponent I get my custom header (this is what Http does with headers) I used DI 0.0.33, Angular 0.9.9

Answer 3

I'm a little late to the discussion, but the answer provided was not usable for me, as my http requests are made by a 3rd party library. But I figured out a way to change the default headers.

You can access and modify the HttpDefaultHeaders object like a map.

headers['Common'].addAll({'Authorization': 'Basic $auth', 'X-Testing': 'Testing'});

This also works with 3rd Party libraries like hammock.

Note: I used angular 1.1.1 I don't know in which version this was added.