From 99d993a1af6f7db6ab9fe688f0dd96510854c297 Mon Sep 17 00:00:00 2001
From: Korstiaan de Ridder <korstiaan@korstiaan.com>
Date: Wed, 19 Jul 2017 13:15:22 +0200
Subject: [PATCH 1/2] Add support for 'brackets' collection format

---
 lib/grape-swagger/doc_methods/data_type.rb    |  2 +-
 .../params_array_collection_fromat_spec.rb    | 23 +++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/lib/grape-swagger/doc_methods/data_type.rb b/lib/grape-swagger/doc_methods/data_type.rb
index 23e92b01..1380360d 100644
--- a/lib/grape-swagger/doc_methods/data_type.rb
+++ b/lib/grape-swagger/doc_methods/data_type.rb
@@ -80,7 +80,7 @@ def mapping(value)
         end
 
         def collections
-          %w[csv ssv tsv pipes multi]
+          %w[csv ssv tsv pipes multi brackets]
         end
       end
 
diff --git a/spec/swagger_v2/params_array_collection_fromat_spec.rb b/spec/swagger_v2/params_array_collection_fromat_spec.rb
index 1472389e..455581f0 100644
--- a/spec/swagger_v2/params_array_collection_fromat_spec.rb
+++ b/spec/swagger_v2/params_array_collection_fromat_spec.rb
@@ -31,6 +31,14 @@ def app
         { 'declared_params' => declared(params) }
       end
 
+      params do
+        optional :array_of_strings, type: Array[String], desc: 'array in brackets collection format', documentation: { collectionFormat: 'brackets' }
+      end
+
+      get '/array_of_strings_brackets_collection_format' do
+        { 'declared_params' => declared(params) }
+      end
+
       add_swagger_documentation
     end
   end
@@ -65,6 +73,21 @@ def app
     end
   end
 
+  describe 'documentation for array parameters in brackets collectionFormat set from documentation' do
+    subject do
+      get '/swagger_doc/array_of_strings_brackets_collection_format'
+      JSON.parse(last_response.body)
+    end
+
+    specify do
+      expect(subject['paths']['/array_of_strings_brackets_collection_format']['get']['parameters']).to eql(
+        [
+          { 'in' => 'formData', 'name' => 'array_of_strings', 'type' => 'array', 'items' => { 'type' => 'string' }, 'required' => false, 'collectionFormat' => 'brackets', 'description' => 'array in brackets collection format' }
+        ]
+      )
+    end
+  end
+
   describe 'documentation for array parameters with collectionFormat set to invalid option' do
     subject do
       get '/swagger_doc/array_of_strings_invalid_collection_format'

From bfe2dd0f8f58a65a3d247e299286448ceeeae7ce Mon Sep 17 00:00:00 2001
From: Korstiaan de Ridder <korstiaan@korstiaan.com>
Date: Wed, 19 Jul 2017 13:25:55 +0200
Subject: [PATCH 2/2] Update changelog.md

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e04040ec..4e063d04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 #### Features
 
-* Your contribution here.
+* [#622](https://github.com/ruby-grape/grape-swagger/pull/622): Add support for 'brackets' collection format - [@korstiaan](https://github.com/korstiaan).
 
 #### Fixes