[cloud_functions] HttpsCallable.call throws PlatformException instead of CloudFunctionsException

[punkeroso]

Describe the bug
When calling .call trying to get an error (i.e. with wrong parameters, wrong function name or wrong region) I'm getting a PlatformException instead of a CloudFunctionsException

To Reproduce
This is the function that actually call .call

Future<num> _simpleFunction(String param1, String param2) async {
    final HttpsCallable _simpleFunction =
        CloudFunctions(region: "europe-west1")
            .getHttpsCallable(functionName: 'simpleFunction');

    try {
      final HttpsCallableResult response = await _addUserRemainder
          .call(<String, dynamic>{'param1': param1, 'param2': param2});

      return response.data['result'];
    } on CloudFunctionsException catch (e) {
      print('catched $e');
      rethrow;
    }
}

And this is where I call _simpleFunction

try {
        num balance;
          balance =
              await _simpleFunction('param', 'param2');
        }
      } catch (error) {
        print('Main block $error');
      }

And I always get:
I/flutter (10343): Main block PlatformException(functionsError, Cloud function failed with exception., {code: INVALID_ARGUMENT, details: null, message: Invalid QR code})

Expected behavior
Reading the implementation of .call function, it should always return a CloudFunctionsException instead.

Additional context
cloud_functions version is 0.4.2

Till the version 0.4.1+6 was working fine.

[dftorres]

Any update on this? I'm having the same issue.
I read this stack overflow question and it says that the cloud functions api can only throw HttpsError with certain codes, that flutter can't catch because there isn't a "functionsError" code. I can't change the implementation of the Cloud Function to throw a generic error with "functionsError" code. I need help

[ElZombieIsra]

Is there info if this is going to be fixed? I have the same issue

[mrsavari]

the same here

[kikuchy]

I fixed it at this issue #2556 but anyone reviewed it.

[yamauchieduardo]

6 months and the bug stays, this behaviour break all my tests. Waiting for #2556 pull request being aproved. @Salakar @collinjackson @kroikie

[cristianm]

Same error here!!

[cubuspl42]

@TahaTesser Could I kindly ping you? This is issue is quite problematic and there's a ready PR (two, actually). The only thing this issue needs is a little bit of ❤️

[TahaTesser]

@cubuspl42
Thanks for the info, will let the team know

[tzvc]

Any updates on this ? Happy to help if PR review is needed :)

[diegogarciar]

It is working for me but using FirebaseFunctionsException not CloudFunctionsException

Future<T> _call<T>(String name, Map params) async {
    print('functions._call, $name, $params');
    final HttpsCallable callable = _cf.httpsCallable(name);
    try {
      final result = await callable.call(params);
      print(result.data);
      return result.data;
    } on FirebaseFunctionsException catch (e) {
      print('caught firebase functions exception');
      print(e.code);
      print(e.message);
      print(e.details);
      if (e.details == null) {
        throw "Unknown error occurred";
      }
      print(e.details["message"]);
      if (e.details["code"] == "some_code") {
        throw "Some Error";
      }
      throw e.details["message"];
    } on PlatformException catch (e) {
      print(e.message);
      print(e.details);
      final cloudException = e.details;
      throw cloudException["message"];
    } catch (e) {
      print(e);
      throw "Unknown error";
    }
  }