remove defaulting to id token

Author: Bas de Vaan

lib/src/oauth_interceptor.dart

@@ -16,6 +16,6 @@ class OAuthInterceptor extends RequestInterceptor {
   FutureOr<Request> onRequest(Request request) async {
     final token = await oauthChopper.token;
     if (token == null) return request;
-    return request.addAuthorizationHeader(token.idToken ?? token.accessToken);
+    return request.addAuthorizationHeader(token.accessToken);
   }
 }

lib/src/oauth_token.dart

@@ -6,10 +6,7 @@ class OAuthToken {
   final DateTime? expiration;
   final String? idToken;
 
-  bool get isExpired {
-    bool expired = expiration != null && DateTime.now().isAfter(expiration!);
-    return expired;
-  }
+  bool get isExpired => expiration != null && DateTime.now().isAfter(expiration!);
 
   const OAuthToken._(
     this.accessToken,

test/oauth_interceptor_test.dart

@@ -4,7 +4,6 @@ import 'package:mockito/mockito.dart';
 import 'package:oauth2/oauth2.dart';
 import 'package:oauth_chopper/oauth_chopper.dart';
 import 'package:oauth_chopper/src/oauth_interceptor.dart';
-import 'package:oauth_chopper/src/oauth_token.dart';
 import 'package:test/test.dart';
 
 @GenerateMocks([OAuthChopper])
@@ -29,7 +28,6 @@ void main() {
     ),
   );
 
-
   final testRequest = Request('GET', Uri(host: 'test'), Uri(host: 'test'));
 
   test('HeaderInterceptor adds available token to headers', () async {
@@ -45,11 +43,11 @@ void main() {
     expect(result.headers, expected);
   });
 
-  test('HeaderInterceptor adds IDToken when available to headers', () async {
+  test('HeaderInterceptor does not add IDToken when available to headers', () async {
     // arrange
     when(mockOAuthChopper.token).thenAnswer((_) async => testIDtoken);
     final interceptor = OAuthInterceptor(mockOAuthChopper);
-    final expected = {'Authorization': 'Bearer idToken'};
+    final expected = {'Authorization': 'Bearer token'};
 
     // act
     final result = await interceptor.onRequest(testRequest);