Using Jaguar getting error: type 'Future<dynamic>' is not a subtype of type 'Future<List<Depot>>'

[Plinzen]

We switched to flutter 2.0.1 recently and had to rerun our code generation.

We have setup the openapi generator with following data:

pubspec.yaml:

dependencies:
  openapi_generator_annotations: ^3.0.2
  service_api:
    path: api/service_api
  jaguar_retrofit: ^2.8.8
  ...

dev_dependencies:
  openapi_generator: ^3.0.2
  ...

Configuration:

@Openapi(
    additionalProperties: AdditionalProperties(pubName: 'service_api'),
    inputSpecFile: 'spec/openapi-spec.yml',
    generatorName: Generator.jaguar,
    alwaysRun: true,
    overwriteExistingFiles: true,
    outputDirectory: 'api/service_api')
class OpenapiConfig extends OpenapiGeneratorConfig {}

Produced Output with new API

The produced output in the api package is now:

@GenApiClient()
class MyFleetApi extends ApiClient with _$MyFleetApiClient {
    final Route base;
    final Map<String, CodecRepo> converters;
    final Duration timeout;

    MyFleetApi({this.base, this.converters, this.timeout = const Duration(minutes: 2)});

    /// 
    ///
    /// 
    @GetReq(path: "/cc-myfleet/depots")
    Future<List<Depot>> getDepots(
        ) {
        return super.getDepots(

        ).timeout(timeout);
    }

And the corresponding .jretro file:

abstract class _$MyFleetApiClient implements ApiClient {
  final String basePath = "";

  dynamic getDepots() async {
    var req = base.get.path(basePath).path("/cc-myfleet/depots");
    return await req.go(throwOnErr: true);
  }

The jretro file is returning dynamic now and when running the code the following exception is produced:
error: type 'Future<dynamic>' is not a subtype of type 'Future<List<Depot>>'

Previous version for Generator (1.1.4)

The old generator (using flutter 1.x) produced a different output for the .jretro file:

abstract class _$MyFleetApiClient implements ApiClient {
  final String basePath = "";

  Future<List<Depot>> getDepots() async {
    var req = base.get.path(basePath).path("/cc-myfleet/depots");
    return req.go(throwOnErr: true).map(decodeList);
  }

Basically it added a .map call at the end.

Was there a change in the generation for Jaguar?

To link: I found the same issue in a different project: Jaguar-dart/client#68

[gibahjoe]

Hello, can you attach a minimal codebase that recreates this issue so that I can have a look. Thanks.

[Plinzen]

Hello,
thanks for your feedback.
Please find the example here, I hope it's sufficient for you to reproduce the issue:

test_flutter.zip