how to change response type in _dio.fetch when using dio/retrofit?

Question

I use dio, retrofit to manage api connections. Codes related to annotations and build_runner are generated.

My problem: I receive a list of data in the response. The code that is generated is different from the code that I need. There is a section in the generated code that contains this text.

final _result = await _dio.fetch<Map<String, dynamic>>(_setStreamType<

And the code I need is like this.

final _result = await _dio.fetch<List<dynamic>>(_setStreamType<

• When i manually edit Map<String, dynamic> to List<‍dynamic> my code working fine And I need something like annotion or etc doing automatically will be resolved this problem .

This is my code snippet:

@RestApi(baseUrl: BuildConfig.SERVER)
abstract class GetApiService {
  factory GetApiService(Dio dio,{String baseUrl}) = _GetApiService;
  @GET(MainApi.baseData)
  @FormUrlEncoded()
  Future<HttpResponse<ResponseList>> getDashboardHomeResponse();
}

Sample my response received:

 [
    {
          'key1':'value1',
          'key2':'value2',
          'key3':'value3'
    }
 ]

Answer 1

I resoleve problem.

The type of data that you give to the http response must be of the List type. so that your dio response is List<‌‍dynamic>.

otherwise , the response generator will return a Map<String, dynamic> type.

My mistake was in passing the data type to HttpResponse.

My class model passing to HttpResponse has a list type variable , but I have to create the class model individually.

This is my edited code snippet:

@RestApi(baseUrl: BuildConfig.SERVER)
abstract class GetApiService {
  factory GetApiService(Dio dio,{String baseUrl}) = _GetApiService;
  @GET(MainApi.baseData)
  @FormUrlEncoded()
  Future<HttpResponse<List<ResponseItem>>> getDashboardHomeResponse(); ///Pay attention to the type , Type is List!
}