Add Extensions for Params (#785)

* Add Extensions for Params

* Add Documentation for `x:` in params

* Remove require `pry`

Author: MaximeRVY

CHANGELOG.md

@@ -3,6 +3,7 @@
 #### Features
 
 * Your contribution here.
+* [#785](https://github.com/ruby-grape/grape-swagger/pull/785): Add extensions for params - [@MaximeRDY](https://github.com/MaximeRDY).
 * [#782](https://github.com/ruby-grape/grape-swagger/pull/782): Allow passing class name as string for rake task initializer - [@misdoro](https://github.com/misdoro).
 
 

README.md

@@ -1084,6 +1084,20 @@ or, for more definitions:
 route_setting :x_def, [{ for: 422, other: 'stuff' }, { for: 200, some: 'stuff' }]
 ```
 
+- `params` extension, add a `x` key to the `documentation` hash :
+```ruby
+requires :foo, type: String, documentation: { x: { some: 'stuff' } }
+```
+this would generate:
+```json
+{
+  "in": "formData",
+  "name": "foo",
+  "type": "string",
+  "required": true,
+  "x-some": "stuff"
+}
+```
 
 #### Response examples documentation <a name="response-examples"></a>
 

lib/grape-swagger/doc_methods/parse_params.rb

@@ -26,6 +26,7 @@ def call(param, settings, path, route, definitions)
           document_range_values(settings) unless value_type[:is_array]
           document_required(settings)
           document_additional_properties(settings)
+          document_add_extensions(settings)
 
           @parsed_param
         end
@@ -62,6 +63,10 @@ def document_type_and_format(settings, data_type)
           @parsed_param[:format] = settings[:format] if settings[:format].present?
         end
 
+        def document_add_extensions(settings)
+          GrapeSwagger::DocMethods::Extensions.add_extensions_to_root(settings, @parsed_param)
+        end
+
         def document_array_param(value_type, definitions)
           if value_type[:documentation].present?
             param_type = value_type[:documentation][:param_type]

spec/issues/784_extensions_on_params_spec.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe '#532 allow custom format' do
+  let(:app) do
+    Class.new(Grape::API) do
+      namespace :issue_784 do
+        params do
+          requires :logs, type: String, documentation: { format: 'log', x: { name: 'Log' } }
+          optional :phone_number, type: Integer, documentation: { format: 'phone_number', x: { name: 'PhoneNumber' } }
+        end
+
+        post do
+          present params
+        end
+      end
+
+      add_swagger_documentation format: :json
+    end
+  end
+
+  subject do
+    get '/swagger_doc'
+    JSON.parse(last_response.body)
+  end
+
+  let(:parameters) { subject['paths']['/issue_784']['post']['parameters'] }
+
+  specify do
+    expect(parameters).to eql(
+      [
+        { 'in' => 'formData', 'name' => 'logs', 'type' => 'string', 'format' => 'log', 'required' => true, 'x-name' => 'Log' },
+        { 'in' => 'formData', 'name' => 'phone_number', 'type' => 'integer', 'format' => 'phone_number', 'required' => false, 'x-name' => 'PhoneNumber' }
+      ]
+    )
+  end
+end