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Showing content from https://github.com/OpenAPITools/openapi-generator/issues/4887 below:

[BUG][DART] Method listFromJson isn't defined on array of enums · Issue #4887 · OpenAPITools/openapi-generator · GitHub

When I define inside an object a property that is an array of enums, the generated code call a method listFromJson that is not defined inside the enum model causing build problems.

➜ openapi-generator version
4.2.2

openapi: 3.0.0
info:
    title: RetroShare OpenApi wrapper
    version: 0.0.1
    description: RetroShare OpenApi wrapper generated using Doxygen documentation
    license:
        name: AGPLv3
servers:
    - url: http://127.0.0.1:9092/
    
paths:
    /jsonApiServer/version:
        post:
            summary: blahblah             
            responses:
                '200':
                    description: >
                            return: 
                    content:
                        application/json:
                            schema:
                                $ref: '#/components/schemas/FileChunksInfo'

components:      
    schemas:
        FileChunksInfo:
            type: object
            properties:
                chunks:
                    type: array
                    items:
                        $ref: '#/components/schemas/ChunkState'
        ChunkState:
            type: integer
            enum:
                
                    - 0
                    - 1
                    - 2
                    - 3
            x-enum-varnames:
                
                    - CHUNK_OUTSTANDING
                    - CHUNK_ACTIVE
                    - CHUNK_DONE
                    - CHUNK_CHECKING

➜ openapi-generator generate -i definition.yml -g dart -o openapi-dart-retroshare-api-wrapper

Just copy the .yml definition and run the command.

After the code is generated be sure that all the dependencies are installed. I us VSCodium with Dart extension for that.

Once all installed you will see a build error on lib/model/file_chunks_info.dart.

  FileChunksInfo.fromJson(Map<String, dynamic> json) {
    if (json == null) return;
    chunks = (json['chunks'] == null) ?
      null :
      ChunkState.listFromJson(json['chunks']);
  }

Where listFromJson is not defined on ChunkState model.

Maybe related to #2567

Should the nums have the method listFromJson?

budget-coder, DarkMikey and tezine

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