Added option to maintain HTTP method across redirects.

lib/httparty.rb

@@ -166,6 +166,21 @@ module HTTParty
       default_options[:no_follow] = value
     end
 
+    # Declare that you wish to maintain the chosen HTTP method across redirects.
+    # The default behavior is to follow redirects via the GET method.
+    # If you wish to maintain the original method, you can set this option to true.
+    #
+    # @example
+    #   class Foo
+    #     include HTTParty
+    #     base_uri 'http://google.com'
+    #     maintain_method_across_redirects true
+    #   end
+
+    def maintain_method_across_redirects(value = true)
+      default_options[:maintain_method_across_redirects] = value
+    end
+
     # Allows setting a PEM file to be used
     #
     #   class Foo

lib/httparty/request.rb

@@ -157,7 +157,7 @@ module HTTParty
             options[:limit] -= 1
             self.path = last_response['location']
             self.redirect = true
-            self.http_method = Net::HTTP::Get
+            self.http_method = Net::HTTP::Get unless options[:maintain_method_across_redirects]
             capture_cookies(last_response)
             perform
           else

spec/httparty/request_spec.rb

@@ -364,6 +364,13 @@ describe HTTParty::Request do
         @request.perform.should == {"hash" => {"foo" => "bar"}}
         @request.http_method.should == Net::HTTP::Get
       end
+
+      it 'should not make resulting request a get request if options[:maintain_method_across_redirects] is true' do
+        @request.options[:maintain_method_across_redirects] = true
+        @request.http_method = Net::HTTP::Delete
+        @request.perform.should == {"hash" => {"foo" => "bar"}}
+        @request.http_method.should == Net::HTTP::Delete
+      end
     end
 
     describe "infinitely" do

spec/httparty_spec.rb

@@ -323,6 +323,18 @@ describe HTTParty do
     end
   end
 
+  describe "#maintain_method_across_redirects" do
+    it "sets maintain_method_across_redirects to true by default" do
+      @klass.maintain_method_across_redirects
+      @klass.default_options[:maintain_method_across_redirects].should be_true
+    end
+
+    it "sets the maintain_method_across_redirects option to false" do
+      @klass.maintain_method_across_redirects false
+      @klass.default_options[:maintain_method_across_redirects].should be_false
+    end
+  end
+
   describe "with explicit override of automatic redirect handling" do
     before do
       @request = HTTParty::Request.new(Net::HTTP::Get, 'http://api.foo.com/v1', :format => :xml, :no_follow => true)