feat(request): Added raw method to access raw data sent to a given request

_raw data is set on the request using the bodyParser middleware, now added a method to access that
value

Author: thetutlage

src/Request/index.js

@@ -123,6 +123,10 @@ class Request {
     return nodeReq.post(this.request) || {}
   }
 
+  raw () {
+    return this._raw
+  }
+
   /**
    * @description returns header value for a given key
    * @method header

test/unit/request.spec.js

@@ -95,6 +95,20 @@ describe('Request', function () {
     expect(res.body.body).deep.equal({})
   })
 
+  it('should return raw object attached to request using raw method', function * () {
+    const server = http.createServer(function (req, res) {
+      const request = new Request(req, res, Config)
+      request._raw = {foo: 'bar'}
+      const raw = request.raw()
+      res.writeHead(200, {"Content-type":"application/json"})
+      res.end(JSON.stringify({raw}),'utf8')
+    })
+
+    const res = yield supertest(server).get("/").expect(200).end()
+    expect(res.body.raw).to.be.an('object')
+    expect(res.body.raw).deep.equal({foo: 'bar'})
+  })
+
   it('should get value for a given key using input method', function * () {
     const server = http.createServer(function (req, res) {
       const request = new Request(req, res, Config)