Add support for wildcard segments path parameters

Author: spaceraccoon

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 #### Features
 
+* [#874](https://github.com/ruby-grape/grape-swagger/pull/874): Add support for wildcard segments path parameters - [@spaceraccoon](https://github.com/spaceraccoon)
 * Your contribution here.
 
 #### Fixes

lib/grape-swagger/doc_methods/path_string.rb

@@ -12,6 +12,7 @@ def build(route, options = {})
 
           # ... format path params
           path.gsub!(/:(\w+)/, '{\1}')
+          path.gsub!(/\*(\w+)/, '{\1}')
 
           # set item from path, this could be used for the definitions object
           path_name = path.gsub(%r{/{(.+?)}}, '').split('/').last

spec/issues/873_wildcard_segments_path_parameters_spec.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe '#873 detect wildcard segments as path parameters' do
+  let(:app) do
+    Class.new(Grape::API) do
+      resource :books do
+        get '*section/:title' do
+          { message: 'hello world' }
+        end
+      end
+
+      add_swagger_documentation
+    end
+  end
+  let(:parameters) { subject['paths']['/books/{section}/{title}']['get']['parameters'] }
+
+  subject do
+    get '/swagger_doc'
+    JSON.parse(last_response.body)
+  end
+
+  specify do
+    section_param = parameters.find { |param| param['name'] == 'section' }
+    expect(section_param['in']).to eq 'path'
+  end
+end