fix: authToken handling

Fix typedef error: (Duration) => void is not a subtype of (dynamic) => void

lib/eventsource.dart

@@ -34,6 +34,7 @@ class EventSource extends Stream<Event> {
   // interface attributes
 
   final Uri url;
+  String authToken = "";
 
   EventSourceReadyState get readyState => _readyState;
 
@@ -55,17 +56,19 @@ class EventSource extends Stream<Event> {
 
   /// Create a new EventSource by connecting to the specified url.
   static Future<EventSource> connect(url,
-      {http.Client client, String lastEventId}) async {
+      {http.Client client, String lastEventId, String authToken}) async {
     // parameter initialization
     url = url is Uri ? url : Uri.parse(url);
     client = client ?? new http.Client();
     lastEventId = lastEventId ?? "";
-    EventSource es = new EventSource._internal(url, client, lastEventId);
+    EventSource es =
+        new EventSource._internal(url, client, lastEventId, authToken);
     await es._start();
     return es;
   }
 
-  EventSource._internal(this.url, this.client, this._lastEventId) {
+  EventSource._internal(
+      this.url, this.client, this._lastEventId, this.authToken) {
     _decoder = new EventSourceDecoder(retryIndicator: _updateRetryDelay);
   }
 
@@ -82,6 +85,7 @@ class EventSource extends Stream<Event> {
     var request = new http.Request("GET", url);
     request.headers["Cache-Control"] = "no-cache";
     request.headers["Accept"] = "text/event-stream";
+    request.headers["Authorization"] = "Bearer $authToken";
     if (_lastEventId.isNotEmpty) {
       request.headers["Last-Event-ID"] = _lastEventId;
     }

lib/src/decoder.dart

@@ -5,7 +5,7 @@ import "dart:convert";
 
 import "event.dart";
 
-typedef void RetryIndicator(Duration);
+typedef RetryIndicator = void Function(Duration retry);
 
 class EventSourceDecoder implements StreamTransformer<List<int>, Event> {
   RetryIndicator retryIndicator;

pubspec.yaml

@@ -1,6 +1,6 @@
 name: eventsource
 description: A client and server implementation of Server-Sent Events.
-version: 0.2.0
+version: 0.2.1
 author: Steven Roose <stevenroose@gmail.com>
 homepage: https://github.com/stevenroose/dart-eventsource