ios - example - ¿Cómo analizar la respuesta JSON de la API de Alamofire en Swift?

swiftyjson alamofire

Question

Siguiendo el código que he escrito y obtengo respuesta en JSON también, pero el tipo de JSON es "AnyObject" y no puedo convertirlo en Array para poder usarlo.

Alamofire.request(.POST, "MY URL", parameters:parameters, encoding: .JSON) .responseJSON
{
(request, response, JSON, error) in
println(JSON?)
}

Answer 1

Encontré la respuesta en GitHub para Swift2

https://github.com/Alamofire/Alamofire/issues/641

Alamofire.request(.GET, URLString, parameters: ["foo": "bar"])
.responseJSON { request, response, result in
switch result {
case .Success(let JSON):
print("Success with JSON: /(JSON)")
case .Failure(let data, let error):
print("Request failed with error: /(error)")
if let data = data {
print("Response data: /(NSString(data: data, encoding: NSUTF8StringEncoding)!)")
}
}
}

Answer 2

Encontré una forma de convertir el response.result.value (dentro de un cierre Jlam de respuesta de Alamofire) al formato JSON que uso en mi aplicación.

Estoy usando Alamofire 3 y Swift 2.2.

Aquí está el código que usé:

 Alamofire.request(.POST, requestString,
parameters: parameters,
encoding: .JSON,
headers: headers).validate(statusCode: 200..<303)
.validate(contentType: ["application/json"])
.responseJSON { (response) in
NSLog("response = /(response)")
switch response.result {
case .Success:
guard let resultValue = response.result.value else {
NSLog("Result value in response is nil")
completionHandler(response: nil)
return
}
let responseJSON = JSON(resultValue)
// I do any processing this function needs to do with the JSON here
// Here I call a completionHandler I wrote for the success case
break
case .Failure(let error):
NSLog("Error result: /(error)")
// Here I call a completionHandler I wrote for the failure case
return
}

Answer 3

Esto fue construido con Xcode 10.1 y Swift 4

Combinación perfecta "Alamofire" (4.8.1) y "SwiftyJSON" (4.2.0). Primero debes instalar ambos pods

pod ''Alamofire'' y pod ''SwiftyJSON''

La respuesta del servidor en formato JSON:

{
"args": {},
"headers": {
"Accept": "*/*",
"Accept-Encoding": "gzip;q=1.0, compress;q=0.5",
"Accept-Language": "en;q=1.0",
"Host": "httpbin.org",
"User-Agent": "AlamoFire TEST/1.0 (com.ighost.AlamoFire-TEST; build:1; iOS 12.1.0) Alamofire/4.8.1"
},
"origin": "200.55.140.181, 200.55.140.181",
"url": "https://httpbin.org/get"
}

En este caso quiero imprimir la información de "Host": "Host": "httpbin.org"

Alamofire.request("https://httpbin.org/get").validate().responseJSON { response in
switch response.result {
case .success:
print("Validation Successful)")
if let json = response.data {
do{
let data = try JSON(data: json)
let str = data["headers"]["Host"]
print("DATA PARSED: /(str)")
}
catch{
print("JSON Error")
}
}
case .failure(let error):
print(error)
}
}

Mantenga la calma y feliz Código 😎

Answer 4

La respuesta para Swift 2.0 Alamofire 3.0 debería verse más así:

Alamofire.request(.POST, url, parameters: parameters, encoding:.JSON).responseJSON
{ response in switch response.result {
case .Success(let JSON):
print("Success with JSON: /(JSON)")
let response = JSON as! NSDictionary
//example if there is an id
let userId = response.objectForKey("id")!
case .Failure(let error):
print("Request failed with error: /(error)")
}
}

https://github.com/Alamofire/Alamofire/blob/master/Documentation/Alamofire%203.0%20Migration%20Guide.md

ACTUALIZACIÓN para Alamofire 4.0 y Swift 3.0:

Alamofire.request(url, method: .post, parameters: parameters, encoding: JSONEncoding.default)
.responseJSON { response in
print(response)
//to get status code
if let status = response.response?.statusCode {
switch(status){
case 201:
print("example success")
default:
print("error with response status: /(status)")
}
}
//to get JSON return value
if let result = response.result.value {
let JSON = result as! NSDictionary
print(JSON)
}
}

Answer 5

No soy un experto en JSON ni un experto en Swift, pero lo siguiente está funcionando para mí. :) Extraje el código de mi aplicación actual y solo cambié "MyLog to println", y sangré con espacios para que se muestre como un bloque de código (espero no haberlo roto).

func getServerCourseVersion(){
Alamofire.request(.GET,"/(PUBLIC_URL)/vtcver.php")
.responseJSON { (_,_, JSON, _) in
if let jsonResult = JSON as? Array<Dictionary<String,String>> {
let courseName = jsonResult[0]["courseName"]
let courseVersion = jsonResult[0]["courseVersion"]
let courseZipFile = jsonResult[0]["courseZipFile"]
println("JSON: courseName: /(courseName)")
println("JSON: courseVersion: /(courseVersion)")
println("JSON: courseZipFile: /(courseZipFile)")
}
}
}

Espero que esto ayude.

Editar:

Como referencia, esto es lo que devuelve mi script PHP:

[{"courseName": "Training Title","courseVersion": "1.01","courseZipFile": "101/files.zip"}]

Answer 6

Swift 3, Alamofire 4.4 y SwiftyJSON:

Alamofire.request(url, method: .get)
.responseJSON { response in
if response.data != nil {
let json = JSON(data: response.data!)
let name = json["people"][0]["name"].string
if name != nil {
print(name!)
}
}
}

Eso analizará esta entrada JSON:

{
people: [
{ name: ''John'' },
{ name: ''Dave'' }
]
}

Answer 7

Usualmente uso la biblioteca Gloss para serializar o deserializar JSON en iOS. Por ejemplo, tengo JSON que se ve así:

{"ABDC":[{"AB":"qwerty","CD":"uiop"}],[{"AB":"12334","CD":"asdf"}]}

Primero, modelé la matriz JSON en Gloss struct:

Struct Struct_Name: Decodable {
let IJ: String?
let KL: String?
init?(json: JSON){
self.IJ = "AB" <~~ json
self.KL = "CD" <~~ json
}
}

Y luego en Alamofire responseJSON, hago lo siguiente:

Alamofire.request(url, method: .get, paramters: parametersURL).validate(contentType: ["application/json"]).responseJSON{ response in
switch response.result{
case .success (let data):
guard let value = data as? JSON,
let eventsArrayJSON = value["ABDC"] as? [JSON]
else { fatalError() }
let struct_name = [Struct_Name].from(jsonArray: eventsArrayJSON)//the JSON deserialization is done here, after this line you can do anything with your JSON
for i in 0 ..< Int((struct_name?.count)!) {
print((struct_name?[i].IJ!)!)
print((struct_name?[i].KL!)!)
}
break
case .failure(let error):
print("Error: /(error)")
break
}
}

La salida del código anterior:

qwerty
uiop
1234
asdf

Answer 8

como mencionamos anteriormente, puede usar la biblioteca SwiftyJSON y obtener sus valores como lo he hecho a continuación

Alamofire.request(.POST, "MY URL", parameters:parameters, encoding: .JSON) .responseJSON
{
(request, response, data, error) in
var json = JSON(data: data!)
println(json)
println(json["productList"][1])
}

mi lista de productos json regresa del script

{ "productList" :[
{"productName" : "PIZZA","id" : "1","productRate" : "120.00","productDescription" : "PIZZA AT 120Rs","productImage" : "uploads//pizza.jpeg"},
{"productName" : "BURGER","id" : "2","productRate" : "100.00","productDescription" : "BURGER AT Rs 100","productImage" : "uploads/Burgers.jpg"}
]
}

salida:

{
"productName" : "BURGER",
"id" : "2",
"productRate" : "100.00",
"productDescription" : "BURGER AT Rs 100",
"productImage" : "uploads/Burgers.jpg"
}

Answer 9

rápido 3

pod ''Alamofire'', ''~> 4.4''
pod ''SwiftyJSON''
File json format:
{
"codeAd": {
"dateExpire": "2017/12/11",
"codeRemoveAd":"1231243134"
}
}
import Alamofire
import SwiftyJSON
private func downloadJson() {
Alamofire.request("https://yourlinkdownloadjson/abc").responseJSON { response in
debugPrint(response)
if let json = response.data {
let data = JSON(data: json)
print("data/(data["codeAd"]["dateExpire"])")
print("data/(data["codeAd"]["codeRemoveAd"])")
}
}
}

Answer 10

 pod ''Alamofire''
pod ''SwiftyJSON''
pod ''ReachabilitySwift''
import UIKit
import Alamofire
import SwiftyJSON
import SystemConfiguration
class WebServiceHelper: NSObject {
typealias SuccessHandler = (JSON) -> Void
typealias FailureHandler = (Error) -> Void
// MARK: - Internet Connectivity
class func isConnectedToNetwork() -> Bool {
var zeroAddress = sockaddr_in()
zeroAddress.sin_len = UInt8(MemoryLayout<sockaddr_in>.size)
zeroAddress.sin_family = sa_family_t(AF_INET)
guard let defaultRouteReachability = withUnsafePointer(to: &zeroAddress, {
$0.withMemoryRebound(to: sockaddr.self, capacity: 1) {
SCNetworkReachabilityCreateWithAddress(nil, $0)
}
}) else {
return false
}
var flags: SCNetworkReachabilityFlags = []
if !SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) {
return false
}
let isReachable = flags.contains(.reachable)
let needsConnection = flags.contains(.connectionRequired)
return (isReachable && !needsConnection)
}
// MARK: - Helper Methods
class func getWebServiceCall(_ strURL : String, isShowLoader : Bool, success : @escaping SuccessHandler, failure : @escaping FailureHandler)
{
if isConnectedToNetwork() {
print(strURL)
if isShowLoader == true {
AppDelegate.getDelegate().showLoader()
}
Alamofire.request(strURL).responseJSON { (resObj) -> Void in
print(resObj)
if resObj.result.isSuccess {
let resJson = JSON(resObj.result.value!)
if isShowLoader == true {
AppDelegate.getDelegate().dismissLoader()
}
debugPrint(resJson)
success(resJson)
}
if resObj.result.isFailure {
let error : Error = resObj.result.error!
if isShowLoader == true {
AppDelegate.getDelegate().dismissLoader()
}
debugPrint(error)
failure(error)
}
}
}else {
CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
}
}
class func getWebServiceCall(_ strURL : String, params : [String : AnyObject]?, isShowLoader : Bool, success : @escaping SuccessHandler, failure :@escaping FailureHandler){
if isConnectedToNetwork() {
if isShowLoader == true {
AppDelegate.getDelegate().showLoader()
}
Alamofire.request(strURL, method: .get, parameters: params, encoding: JSONEncoding.default, headers: nil).responseJSON(completionHandler: {(resObj) -> Void in
print(resObj)
if resObj.result.isSuccess {
let resJson = JSON(resObj.result.value!)
if isShowLoader == true {
AppDelegate.getDelegate().dismissLoader()
}
success(resJson)
}
if resObj.result.isFailure {
let error : Error = resObj.result.error!
if isShowLoader == true {
AppDelegate.getDelegate().dismissLoader()
}
failure(error)
}
})
}
else {
CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
}
}
class func postWebServiceCall(_ strURL : String, params : [String : AnyObject]?, isShowLoader : Bool, success : @escaping SuccessHandler, failure :@escaping FailureHandler)
{
if isConnectedToNetwork()
{
if isShowLoader == true
{
AppDelegate.getDelegate().showLoader()
}
Alamofire.request(strURL, method: .post, parameters: params, encoding: JSONEncoding.default, headers: nil).responseJSON(completionHandler: {(resObj) -> Void in
print(resObj)
if resObj.result.isSuccess
{
let resJson = JSON(resObj.result.value!)
if isShowLoader == true
{
AppDelegate.getDelegate().dismissLoader()
}
success(resJson)
}
if resObj.result.isFailure
{
let error : Error = resObj.result.error!
if isShowLoader == true
{
AppDelegate.getDelegate().dismissLoader()
}
failure(error)
}
})
}else {
CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
}
}
class func postWebServiceCallWithImage(_ strURL : String, image : UIImage!, strImageParam : String, params : [String : AnyObject]?, isShowLoader : Bool, success : @escaping SuccessHandler, failure : @escaping FailureHandler)
{
if isConnectedToNetwork() {
if isShowLoader == true
{
AppDelegate.getDelegate().showLoader()
}
Alamofire.upload(
multipartFormData: { multipartFormData in
if let imageData = UIImageJPEGRepresentation(image, 0.5) {
multipartFormData.append(imageData, withName: "Image.jpg")
}
for (key, value) in params! {
let data = value as! String
multipartFormData.append(data.data(using: String.Encoding.utf8)!, withName: key)
print(multipartFormData)
}
},
to: strURL,
encodingCompletion: { encodingResult in
switch encodingResult {
case .success(let upload, _, _):
upload.responseJSON { response in
debugPrint(response)
//let datastring = String(data: response, encoding: String.Encoding.utf8)
// print(datastring)
}
case .failure(let encodingError):
print(encodingError)
if isShowLoader == true
{
AppDelegate.getDelegate().dismissLoader()
}
let error : NSError = encodingError as NSError
failure(error)
}
switch encodingResult {
case .success(let upload, _, _):
upload.responseJSON { (response) -> Void in
if response.result.isSuccess
{
let resJson = JSON(response.result.value!)
if isShowLoader == true
{
AppDelegate.getDelegate().dismissLoader()
}
success(resJson)
}
if response.result.isFailure
{
let error : Error = response.result.error! as Error
if isShowLoader == true
{
AppDelegate.getDelegate().dismissLoader()
}
failure(error)
}
}
case .failure(let encodingError):
if isShowLoader == true
{
AppDelegate.getDelegate().dismissLoader()
}
let error : NSError = encodingError as NSError
failure(error)
}
}
)
}
else
{
CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
}
}
}
==================================
Call Method
let aParams : [String : String] = [
"ReqCode" : Constants.kRequestCodeLogin,
]
WebServiceHelper.postWebServiceCall(Constants.BaseURL, params: aParams as [String : AnyObject]?, isShowLoader: true, success: { (responceObj) in
if "/(responceObj["RespCode"])" != "1"
{
let alert = UIAlertController(title: Constants.kAppName, message: "/(responceObj["RespMsg"])", preferredStyle: UIAlertControllerStyle.alert)
let OKAction = UIAlertAction(title: "OK", style: .default) { (action:UIAlertAction!) in
}
alert.addAction(OKAction)
self.present(alert, animated: true, completion: nil)
}
else
{
let aParams : [String : String] = [
"Password" : self.dictAddLogin[AddLoginConstants.kPassword]!,
]
CommonMethods.saveCustomObject(aParams as AnyObject?, key: Constants.kLoginData)
}
}, failure:
{ (error) in
CommonMethods.showAlertWithError(Constants.kALERT_TITLE_Error, strMessage: error.localizedDescription,withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
})
}