[BUG] Ruby Faraday client encodes arrays in parameters only for Rails (array_name[])

Created by: dkliban

Description

The following code produces query parameters that are intended for Rails app:

@manifest_api = PulpContainerClient::ContentManifestsApi.new
@manifest_api.list({media_type: ["application/vnd.docker.distribution.manifest.v1+json", "application/vnd.docker.distribution.manifest.v2+json"]})

"GET /pulp/api/v3/content/container/manifests/?media_type%5B%5D=application%2Fvnd.docker.distribution.manifest.v1%2Bjson&media_type%5B%5D=application%2Fvnd.docker.distribution.manifest.v2%2Bjson HTTP/1.1" 400

Django apps expect the URL to be encoded without the %5B%5D.

"GET /pulp/api/v3/content/container/manifests/?media_type=application%2Fvnd.docker.distribution.manifest.v1%2Bjson&media_type=application%2Fvnd.docker.distribution.manifest.v2%2Bjson HTTP/1.0" 200

openapi-generator version

4.3.1+

Suggest a fix

Faraday supports passing in params_encoder. The configuration object needs to accept a params_encoder.

https://github.com/lostisland/faraday/issues/78#issuecomment-260340017