#369 - Form encode paramaters when method == post/put and no other body present

lib/google/apis/core/http_command.rb

@@ -145,6 +145,15 @@ module Google
           header.update(options.header) if options && options.header
           self.url = url.expand(params) if url.is_a?(Addressable::Template)
           url.query_values = query.merge(url.query_values || {})
+
+          if [:post, :put].include?(method)  && body.nil?
+            @form_encoded = true
+            self.body = Addressable::URI.form_encode(url.query_values(Array))
+            self.header['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8'
+            self.url.query_values = {}
+          else
+            @form_encoded = false
+          end
         end
 
         # Release any resources used by this command
@@ -263,9 +272,11 @@ module Google
             response = client.send(method, url, body) do |req|
               # Temporary workaround for Hurley bug where the connection preference
               # is ignored and it uses nested anyway
-              req.url.query_class = Hurley::Query::Flat
+              unless form_encoded?
-              query.each do | k, v|
+                req.url.query_class = Hurley::Query::Flat
-                req.url.query[k] = normalize_query_value(v)
+                query.each do | k, v|
+                 req.url.query[k] = normalize_query_value(v)
+                end
               end
               # End workaround
               apply_request_options(req)
@@ -296,6 +307,10 @@ module Google
 
         private
 
+        def form_encoded?
+          @form_encoded
+        end
+
         def normalize_query_value(v)
           case v
           when Array

spec/google/apis/core/http_command_spec.rb

@@ -281,4 +281,17 @@ RSpec.describe Google::Apis::Core::HttpCommand do
     command.query['b'] = false
     command.execute(client)
   end
+
+  it 'should form encode parameters when method is POST and no body present' do
+    stub_request(:post, 'https://www.googleapis.com/zoo/animals')
+        .with(body: 'a=1&a=2&a=3&b=hello&c=&d=0')
+        .to_return(status: [200, ''])
+    command = Google::Apis::Core::HttpCommand.new(:post, 'https://www.googleapis.com/zoo/animals')
+    command.query['a'] = [1,2,3]
+    command.query['b'] = 'hello'
+    command.query['c'] = nil
+    command.query['d'] = 0
+    command.execute(client)
+  end
+
 end