Hash > Hash > Array[Integer] isn't properly reflected in the Data Type column of the UI

[Crystark]

Hi,

Considering the following resource, It seems to generate an improper swagger Data Type Example Value:

module Test
  module V1
    class Ping < Grape::API
      resource :ping do
        desc "Are you alive!", tags: ['tools']
        params do
          requires :test, type: Hash, documentation: { param_type: 'body' } do
            requires :hash, type: Hash do
              requires :int_array, type: Array[Integer]
            end
          end
        end
        post do
          'pong'
        end
      end
    end
  end
end

This shows the following:

{
  "test": [
    {
      "hash": [
        {
          "int_array": 0
        }
      ]
    }
  ]
}

However I would expect:

{
  "test": {
    "hash": {
      "int_array": [0]
    }
  }
}

The model is also wrong:

postControlPing {
  test (Array[inline_model_11])
}
inline_model_11 {
  hash (Array[Inline Model 1], optional)
}
Inline Model 1 {
  int_array (integer)
}

it should be:

postControlPing {
  test (inline_model_11)
}
inline_model_11 {
  hash (Inline Model 1, optional)
}
Inline Model 1 {
  int_array (Array[integer])
}

It seems like the array breaks it and is set on every parent member instead of the element iteself.

As a quick fix i'm using:

        params do
          requires :test, type: Hash, documentation: { param_type: 'body' } do
            requires :hash, type: Hash do
              requires :int_array, type: Object, documentation: { type: 'Array[Integer]' }
            end
          end
        end

This prints out:

{
  "test": {
    "hash": {}
  }
}

and

postControlPing {
  test (inline_model_11)
}
inline_model_11 {
  hash (Inline Model 1, optional)
}
Inline Model 1 {
  int_array (Array[Integer])
}

The example isn't perfect but i can fix that with a note in the description of the endpoint.
Thanks