Description

My OpenApi 3.0 specification contains an endpoint for which the response media type can be application/octet-stream or, if the query cannot be completed, application/json.
The generated Python client code builds a query with a MediaType being the concatenation of both: application/octet-streamapplication/json

openapi-generator version

3.0.3

OpenAPI declaration file content or url

Below is my (simplified) OpenApi specification:

openapi: 3.0.0 servers: - url: http://localhost/myapi info: version: "1.0" title: My API security: - basicAuth: [] paths: /download: get: operationId: download responses: 200: description: OK content: application/octet-stream: schema: type: string format: binary 500: description: Error content: application/json: schema: type: string

Command line used for generation

I call the generator directly from my Java application:

CodegenConfigurator configurator = new CodegenConfigurator(); configurator.setInputSpec("spec.yml"); configurator.setGeneratorName("python"); configurator.setOutputDir("out"); new DefaultGenerator().opts(configurator.toClientOptInput()).generate();

Python test file

Running this script with the generated openapi_client

import unittest import openapi_client configuration = openapi_client.Configuration() configuration.debug = True # create an instance of the API class api_instance = openapi_client.DefaultApi(openapi_client.ApiClient(configuration)) class TestModels(unittest.TestCase): def test_download(self): api_instance.download() if __name__ == '__main__': unittest.main()

results in the following output:

2018-07-02 15:17:38,841 DEBUG Starting new HTTP connection (1): localhost send: 'GET /myapi HTTP/1.1\r\nHost: localhost:10080\r\nAccept-Encoding: identity\r\nContent-Type: application/json\r\nAccept: application/octet-streamapplication/json\r\nAuthorization: Basic c2VtYWRtaW46c2VtYWRtaW4=\r\nUser-Agent: OpenAPI-Generator/1.0.0/python\r\n\r\n' reply: 'HTTP/1.1 406 Not Acceptable\r\n' ...