Added feature to report header params in params block

Author: Bill Leeper

CHANGELOG.md

@@ -5,6 +5,7 @@
 #### Fixes
 
 * [#389](https://github.com/ruby-grape/grape-swagger/pull/389): respect X-Forwarded-Host - [@edvakf](https://github.com/edvakf).
+* [#393](https://github.com/ruby-grape/grape-swagger/pull/393): properly handle header parameters- [@wleeper](https://github.com/wleeper).
 
 ### 0.20.1 / 2016-04-17
 

lib/grape-swagger/doc_methods.rb

@@ -9,6 +9,7 @@
 require 'grape-swagger/doc_methods/tag_name_description'
 require 'grape-swagger/doc_methods/parse_params'
 require 'grape-swagger/doc_methods/move_params'
+require 'grape-swagger/doc_methods/headers'
 
 module GrapeSwagger
   module DocMethods

lib/grape-swagger/doc_methods/headers.rb

@@ -0,0 +1,18 @@
+module GrapeSwagger
+  module DocMethods
+    class Headers
+      class << self
+        def parse(route)
+          route.route_headers.to_a.map do |route_header|
+            route_header.tap do |header|
+              hash = header[1]
+              description = hash.delete('description')
+              hash[:documentation] = { desc: description, in: 'header' }
+              hash[:type] = hash['type'].titleize if hash['type']
+            end
+          end
+        end
+      end
+    end
+  end
+end

lib/grape-swagger/endpoint.rb

@@ -105,7 +105,6 @@ def path_item(routes, options)
     def method_object(route, options, path)
       method = {}
       method[:description] = description_object(route, options[:markdown])
-      method[:headers]     = route.route_headers if route.route_headers
       method[:produces]    = produces_object(route, options[:produces] || options[:format])
       method[:consumes]    = consumes_object(route, options[:format])
       method[:parameters]  = params_object(route)
@@ -194,14 +193,13 @@ def tag_object(route, version)
     def partition_params(route)
       declared_params = route.route_settings[:declared_params] if route.route_settings[:declared_params].present?
       required, exposed = route.route_params.partition { |x| x.first.is_a? String }
-
+      required.concat GrapeSwagger::DocMethods::Headers.parse(route) unless route.route_headers.nil?
       default_type(required)
       default_type(exposed)
 
-      unless declared_params.nil?
+      unless declared_params.nil? && route.route_headers.nil?
         request_params = parse_request_params(required)
       end
-
       if !exposed.empty?
         exposed_params = exposed.each_with_object({}) { |x, memo| memo[x.first] = x.last }
         properties = parse_response_params(exposed_params)
@@ -215,8 +213,7 @@ def partition_params(route)
         @definitions[key] = { type: 'object', properties: properties } unless @definitions.key?(key)
         @definitions[key][:properties].merge!(properties) if @definitions.key?(key)
       end
-
-      return route.route_params if route.route_params && !route.route_settings[:declared_params].present?
+      return route.route_params if route.route_params.present? && !route.route_settings[:declared_params].present?
       request_params || {}
     end
 
@@ -244,6 +241,7 @@ def parse_response_params(params)
       return if params.nil?
 
       params.each_with_object({}) do |x, memo|
+        next if x[1].fetch(:documentation, {}).fetch(:in, nil).to_s == 'header'
         x[0] = x.last[:as] if x.last[:as]
 
         model = x.last[:using] if x.last[:using].present?

spec/swagger_v2/api_swagger_v2_headers_spec.rb

@@ -36,9 +36,13 @@ def app
   end
 
   specify do
-    expect(subject['paths']['/use_headers']['get']).to include('headers')
-    expect(subject['paths']['/use_headers']['get']['headers']).to eql({
-      "X-Rate-Limit-Limit"=>{"description"=>"The number of allowed requests in the current period", "type"=>"integer"}
-    })
+    expect(subject['paths']['/use_headers']['get']['parameters']).to eql([
+      {"in"=>"header",
+       "name"=>"X-Rate-Limit-Limit",
+       "description"=>"The number of allowed requests in the current period",
+       "type"=>"integer",
+       "format" => "int32",
+       "required"=>false},
+    ])
   end
 end

spec/swagger_v2/param_type_spec.rb

@@ -50,7 +50,7 @@ def app
 
     it 'has consistent types' do
       types = subject.map { |param| param['type'] }
-      expect(types).to eq(%w(string))
+      expect(types).to eq(%w(string string))
     end
   end
 end

spec/swagger_v2/simple_mounted_api_spec.rb

@@ -97,10 +97,10 @@ def app
           "/simple_with_headers"=>{
             "get"=>{
               "description"=>"this gets something else",
-              "headers"=>{
-                "XAuthToken"=>{"description"=>"A required header.", "required"=>true},
-                "XOtherHeader"=>{"description"=>"An optional header.", "required"=>false}},
               "produces"=>["application/json"],
+              "parameters"=>[
+                {"in"=>"header", "name"=>"XAuthToken", "description"=>"A required header.", "type"=>"string", "required"=>true},
+                {"in"=>"header", "name"=>"XOtherHeader", "description"=>"An optional header.", "type"=>"string", "required"=>false}],
               "tags"=>["simple_with_headers"],
               "operationId"=>"getSimpleWithHeaders",
               "responses"=>{
@@ -203,10 +203,10 @@ def app
           "/simple_with_headers"=>{
             "get"=>{
               "description"=>"this gets something else",
-              "headers"=>{
-                "XAuthToken"=>{"description"=>"A required header.", "required"=>true},
-                "XOtherHeader"=>{"description"=>"An optional header.", "required"=>false}},
               "produces"=>["application/json"],
+              "parameters"=>[
+                {"in"=>"header", "name"=>"XAuthToken", "description"=>"A required header.", "type"=>"string", "required"=>true},
+                {"in"=>"header", "name"=>"XOtherHeader", "description"=>"An optional header.", "type"=>"string", "required"=>false}],
               "tags"=>["simple_with_headers"],
               "operationId"=>"getSimpleWithHeaders",
               "responses"=>{