Allow passing custom clientId and clientSecret to client token interceptor

Author: Peter Bryant

lib/src/passputter_impl.dart

@@ -48,12 +48,17 @@ class PassputterImpl implements Passputter {
   }
 
   @override
-  ClientTokenInterceptor get clientTokenInterceptor => ClientTokenInterceptor(
-        tokenStorage: tokenStorage,
-        oAuthApi: oAuthApi,
-        clientId: clientId,
-        clientSecret: clientSecret,
-      );
+  ClientTokenInterceptor getClientTokenInterceptor({
+    required String clientId,
+    required String clientSecret,
+  }) {
+    return ClientTokenInterceptor(
+      tokenStorage: tokenStorage,
+      oAuthApi: oAuthApi,
+      clientId: clientId,
+      clientSecret: clientSecret,
+    );
+  }
 
   @override
   UserTokenInterceptor get userTokenInterceptor => UserTokenInterceptor(

lib/src/passputter_interface.dart

@@ -52,7 +52,10 @@ abstract class Passputter {
   Future<void> logOut();
 
   /// A [Dio] interceptor which adds a client token to each request
-  ClientTokenInterceptor get clientTokenInterceptor;
+  ClientTokenInterceptor getClientTokenInterceptor({
+    required String clientId,
+    required String clientSecret,
+  });
 
   /// A [Dio] interceptor which adds a user token to each request
   UserTokenInterceptor get userTokenInterceptor;