Added support for .json :format in route matching.

Author: aiwilliams

lib/grape/api.rb

@@ -222,12 +222,13 @@ def compile_path(path)
         parts = []
         parts << prefix if prefix
         parts << ':version' if version
-        parts << namespace if namespace
-        parts << path
+        parts << namespace.to_s if namespace
+        parts << path.to_s if path && '/' != path
+        parts.last << '(.:format)'
         Rack::Mount::Utils.normalize_path(parts.join('/'))
       end
     end  
 
     reset! 
   end
-end
+end

spec/grape/api_spec.rb

@@ -92,7 +92,7 @@ def app; subject end
       subject.version :v1
 
       subject.namespace :awesome do
-        compile_path('hello').should == '/rad/:version/awesome/hello'
+        compile_path('hello').should == '/rad/:version/awesome/hello(.:format)'
       end
     end
 
@@ -117,9 +117,9 @@ def app; subject end
     it 'should be callable with nil just to push onto the stack' do
       subject.namespace do
         version 'v2'
-        compile_path('hello').should == '/:version/hello'
+        compile_path('hello').should == '/:version/hello(.:format)'
       end
-      subject.send(:compile_path, 'hello').should == '/hello'
+      subject.send(:compile_path, 'hello').should == '/hello(.:format)'
     end
 
     %w(group resource resources).each do |als|
@@ -159,6 +159,26 @@ def app; subject end
       get '/def'
       last_response.body.should == 'foo'
     end
+
+    it 'should allow for format' do
+      subject.get("/abc") do
+        "json"
+      end
+      
+      get '/abc.json'
+      last_response.body.should == '"json"'
+    end
+
+    it 'should allow for format in namespace with no path' do
+      subject.namespace :abc do
+        get do
+          "json"
+        end
+      end
+      
+      get '/abc.json'
+      last_response.body.should == '"json"'
+    end
 
     it 'should allow for multiple verbs' do
       subject.route([:get, :post], '/abc') do
@@ -340,4 +360,4 @@ def two
       last_response.status.should == 200
     end
   end
-end
+end