Use a Mash for params. Closes ruby-grape#50, Closes ruby-grape#47, Closes ruby-grape#27

Author: Michael Bleigh

Gemfile.lock

@@ -2,6 +2,7 @@ PATH
   remote: .
   specs:
     grape (0.1.5)
+      hashie (~> 1.0)
       multi_json
       multi_xml
       rack
@@ -19,15 +20,16 @@ GEM
       guard (>= 0.2.2)
     guard-rspec (0.4.2)
       guard (>= 0.4.0)
+    hashie (1.1.0)
     json_pure (1.5.2)
     maruku (0.6.0)
       syntax (>= 1.0.0)
     multi_json (1.0.3)
-    multi_xml (0.2.2)
+    multi_xml (0.3.0)
     rack (1.3.0)
     rack-jsonp (1.2.0)
       rack
-    rack-mount (0.8.1)
+    rack-mount (0.8.3)
       rack (>= 1.0.0)
     rack-test (0.6.0)
       rack (>= 1.0)

grape.gemspec

@@ -18,6 +18,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'rack-jsonp'
   s.add_runtime_dependency 'multi_json'
   s.add_runtime_dependency 'multi_xml'
+  s.add_runtime_dependency 'hashie', '~> 1.0'
 
   s.add_development_dependency 'rake'
   s.add_development_dependency 'maruku'

lib/grape/endpoint.rb

@@ -1,5 +1,6 @@
 require 'rack'
 require 'grape'
+require 'hashie'
 
 module Grape
   # An Endpoint is the proxy scope in which all routing
@@ -29,11 +30,7 @@ def self.call(env)
     # The parameters passed into the request as
     # well as parsed from URL segments.
     def params
-      @params ||= request.params.merge(env['rack.routing_args'] || {}).inject({}) do |h,(k,v)|
-        h[k.to_s] = v
-        h[k.to_sym] = v
-        h
-      end
+      @params ||= Hashie::Mash.new.deep_merge(request.params).deep_merge(env['rack.routing_args'] || {})
     end
 
     # The API version as specified in the URL.

spec/grape/endpoint_spec.rb

@@ -48,6 +48,14 @@ def app; subject end
       get '/hey/12'
       last_response.body.should == '12'
     end
+
+    it 'should deeply convert nested params' do
+      subject.get '/location' do
+        params[:location][:city]
+      end
+      get '/location?location[city]=Dallas'
+      last_response.body.should == 'Dallas'
+    end
   end
 
   describe '#error!' do