Fix #344: Added parser :type, nil, which disables parsing for a given…

… content-type.

CHANGELOG.md

@@ -2,7 +2,8 @@ Next Release
 ============
 
 * [#378](https://github.com/intridea/grape/pull/378): Fix: stop rescuing all exceptions during formatting - [@kbarrette](https://github.com/kbarrette).
-* [#380](https://github.com/intridea/grape/pull/380): Fix: Formatter#read_body_input when transfer encoding is chunked - [@paulnicholon](https://github.com/paulnicholson).
+* [#380](https://github.com/intridea/grape/pull/380): Fix: `Formatter#read_body_input` when transfer encoding is chunked - [@paulnicholon](https://github.com/paulnicholson).
+* [#344](https://github.com/intridea/grape/pull/344): Added `parser :type, nil` which disables input parsing for a given content-type - [@dblock](https://github.com/dblock).
 * Your contribution here.
 
 0.4.1 (4/1/2013)

README.md

@@ -920,6 +920,8 @@ You can invoke the above API as follows.
 curl -X PUT -d 'data' 'http://localhost:9292/value' -H Content-Type:text/custom -v
 ```
 
+You can disable parsing for a content-type with `nil`. For example, `parser :json, nil` will disable JSON parsing altogether. The request data is then available as-is in `env['api.request.body']`.
+
 ## RESTful Model Representations
 
 Grape supports a range of ways to present your data with some help from a generic `present` method,

lib/grape/middleware/formatter.rb

@@ -67,6 +67,8 @@ def read_rack_input(body)
                 rescue Exception => e
                   throw :error, :status => 400, :message => e.message
                 end
+              else
+                env['api.request.body'] = body
               end
             else
               throw :error, :status => 406, :message => "The requested content-type '#{request.media_type}' is not supported."

spec/grape/api_spec.rb

@@ -1266,6 +1266,19 @@ def self.call(object, env)
         last_response.body.should eql 'Disallowed type attribute: "symbol"'
       end
     end
+    context "none parser class" do
+      before :each do
+        subject.parser :json, nil
+        subject.put "data" do
+          "body: #{env['api.request.body']}"
+        end
+      end
+      it "does not parse data" do
+        put '/data', 'not valid json', "CONTENT_TYPE" => "application/json"
+        last_response.status.should == 200
+        last_response.body.should == "body: not valid json"
+      end
+    end
   end
 
   describe '.default_error_status' do