import Alamofire

Alamofire.request(.GET, "https://httpbin.org/get")

Alamofire.request("https://httpbin.org/get").validate().responseJSON { response in
switch response.result {
case .success:
    print("Validation Successful")
case .failure(let error):
    print(error)
 }
}

Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"])
     .responseJSON { response in
         print(response.request)  // original URL request
         print(response.response) // URL response
         print(response.data)     // server data
         print(response.result)   // result of response serialization

         if let JSON = response.result.value {
             print("JSON: \(JSON)")
         }
     }

Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"])
     .validate(statusCode: 200..<300)
     .validate(contentType: ["application/json"])
     .response { response in
         print(response)
     }

Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"])
     .validate()
     .response { request, response, data, error in
         print(request)
         print(response)
         print(data)
         print(error)
      }

Alamofire.request(.GET, "https://httpbin.org/get")
     .validate()
     .responseString { response in
         print("Response String: \(response.result.value)")
     }
     .responseJSON { response in
         print("Response JSON: \(response.result.value)")
     }