AlamofireGet.swift

// raw
Alamofire.request(.GET, "http://api.room2shop.com/api/product/GetProducts?categoryId=22&filter=2&pageNumber=1")
        .responseJSON { response in
            debugPrint(response)

            switch response.result {
            case .Success(let JSON):
                print(JSON)
            case .Failure(let error):
                print(error)
            }
    }

// with params
Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"])
     .responseData { response in
         print(response.request)
         print(response.response)
         print(response.result)
      }