EventSourceOutsideBrowser class abstract

Implemented by EventSource outside browser.

Example

import 'package:universal_html/html.dart';
import 'dart:io' show Cookie;

Future<void> main() async {
  final eventSource = EventSource('http://example.com/events');
  if (eventSource is EventSourceOutsideBrowser) {
    eventSource.onHttpClientRequest = (eventSource, request) {
      request.headers.set('Authorization', 'example');
      request.cookies.add(Cookie('name', 'value'));
    };
    eventSource.onHttpClientRequest = (eventSource, request, response) {
      // ...
    };
  }
  await for (var message in eventSource.onMessage) {
    print('Event:');
    print('  type: ${message.type}');
    print('  data: ${message.data}');
  }
}

Constructs EventSource and allows HTTP request modifications if the application is not running in browser.