aligning logic to backend workflows

lib/screens/confirm/confirm_controller.dart

@@ -57,6 +57,7 @@ class ConfirmController extends ChangeNotifier {
       model.isLoading = true;
       notifyListeners();
 
+      // todo: find out if we still need to update these fields
       transactionController
           .model
           .formData = transactionController.model.formData.copyWith(
@@ -66,11 +67,14 @@ class ConfirmController extends ChangeNotifier {
         authType: transactionController.model.selectedPaymentProcessor.authType,
       );
 
-      dynamic response = await http.post(
-        '/public/transaction/request',
-        transactionController.model.formData,
+      dynamic workflowResponse = await http.get(
+        '/public/transaction/request/'
+            '${transactionController.model.confirmationData['id']}/'
+            '${transactionController.model.selectedPaymentProcessor.authType}'
       );
-      logger.i(response.toString());
+      logger.i(workflowResponse.toString());
+
+      dynamic response = workflowResponse['body'];
 
       if (response['status'] != 'FAILED') {
         model.status = response['status'];
@@ -133,4 +137,11 @@ class ConfirmController extends ChangeNotifier {
       await Future.delayed(const Duration(seconds: 5));
     }
   }
+
+  @override
+  void dispose() {
+    // TODO: implement dispose
+    super.dispose();
+    model.isCancelled = true;
+  }
 }