Ios 刷新令牌的正确方法
Ios 刷新令牌的正确方法,ios,swift,alamofire,Ios,Swift,Alamofire,RequestManager类中有一个函数getUser，它在myVC中调用 func getUser(onCompletion: @escaping (_ result: User?, error: String?) -> Void) { Alamofire.request(Router.getUser).responseJSON { (response) in // here is the work with response } } 如果此请求返回4
RequestManager类中有一个函数getUser
，它在myVC
中调用
func getUser(onCompletion: @escaping (_ result: User?, error: String?) -> Void) {
Alamofire.request(Router.getUser).responseJSON { (response) in
// here is the work with response
}
}
如果此请求返回403
，则表示access\u令牌
已过期。我需要刷新令牌并从我的VC
重复请求
func getUser(onCompletion: @escaping (_ result: User?, error: String?) -> Void) {
Alamofire.request(Router.getUser).responseJSON { (response) in
// here is the work with response
}
}
现在是问题
如何刷新令牌并以正确的方式重复请求
在MyViewController
或getUser
方法中处理错误和刷新令牌不是个好主意，因为我有很多VCs
和请求方法
我需要这样的东西：VC
调用该方法并获取用户
，即使令牌已过期，refreshtToken
必须不在所有请求方法中
编辑
refreshToken
方法
func refreshToken(onCompletion: @escaping (_ result: Bool?) -> Void) {
Alamofire.request(Router.refreshToken).responseJSON { (response) in
print(response)
if response.response?.statusCode == 200 {
guard let data = response.data else { return onCompletion(false) }
let token = try? JSONDecoder().decode(Token.self, from: data)
token?.setToken()
onCompletion(true)
} else {
onCompletion(false)
}
}
}
为了解决这个问题，我创建了一个类，我们将从中调用每个API，比如BaseService.swift
BaseService.swift:
import Foundation
import Alamofire
import iComponents
struct AlamofireRequestModal {
var method: Alamofire.HTTPMethod
var path: String
var parameters: [String: AnyObject]?
var encoding: ParameterEncoding
var headers: [String: String]?
init() {
method = .get
path = ""
parameters = nil
encoding = JSONEncoding() as ParameterEncoding
headers = ["Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
"Cache-Control": "no-cache"]
}
}
class BaseService: NSObject {
func callWebServiceAlamofire(_ alamoReq: AlamofireRequestModal, success: @escaping ((_ responseObject: AnyObject?) -> Void), failure: @escaping ((_ error: NSError?) -> Void)) {
// Create alamofire request
// "alamoReq" is overridden in services, which will create a request here
let req = Alamofire.request(alamoReq.path, method: alamoReq.method, parameters: alamoReq.parameters, encoding: alamoReq.encoding, headers: alamoReq.headers)
// Call response handler method of alamofire
req.validate(statusCode: 200..<600).responseJSON(completionHandler: { response in
let statusCode = response.response?.statusCode
switch response.result {
case .success(let data):
if statusCode == 200 {
Logs.DLog(object: "\n Success: \(response)")
success(data as AnyObject?)
} else if statusCode == 403 {
// Access token expire
self.requestForGetNewAccessToken(alaomReq: alamoReq, success: success, failure: failure)
} else {
let errorDict: [String: Any] = ((data as? NSDictionary)! as? [String: Any])!
Logs.DLog(object: "\n \(errorDict)")
failure(errorTemp as NSError?)
}
case .failure(let error):
Logs.DLog(object: "\n Failure: \(error.localizedDescription)")
failure(error as NSError?)
}
})
}
}
extension BaseService {
func getAccessToken() -> String {
if let accessToken = UserDefaults.standard.value(forKey: UserDefault.userAccessToken) as? String {
return "Bearer " + accessToken
} else {
return ""
}
}
// MARK: - API CALL
func requestForGetNewAccessToken(alaomReq: AlamofireRequestModal, success: @escaping ((_ responseObject: AnyObject?) -> Void), failure: @escaping ((_ error: NSError?) -> Void) ) {
UserModal().getAccessToken(success: { (responseObj) in
if let accessToken = responseObj?.value(forKey: "accessToken") {
UserDefaults.standard.set(accessToken, forKey: UserDefault.userAccessToken)
}
// override existing alaomReq (updating token in header)
var request: AlamofireRequestModal = alaomReq
request.headers = ["Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
"Cache-Control": "no-cache",
"X-Authorization": self.getAccessToken()]
self.callWebServiceAlamofire(request, success: success, failure: failure)
}, failure: { (_) in
self.requestForGetNewAccessToken(alaomReq: alaomReq, success: success, failure: failure)
})
}
}
import Foundation
let GET_USER_PROFILE_METHOD = "user/profile"
struct BaseURL {
// Local Server
static let urlString: String = "http://192.168.10.236: 8084/"
// QAT Server
// static let urlString: String = "http://192.171.286.74: 8080/"
static let staging: String = BaseURL.urlString + "api/v1/"
}
class APIService: BaseService {
func getUserProfile(success: @escaping ((_ responseObject: AnyObject?) -> Void), failure: @escaping ((_ error: NSError?) -> Void)) {
var request: AlamofireRequestModal = AlamofireRequestModal()
request.method = .get
request.path = BaseURL.staging + GET_USER_PROFILE_METHOD
request.headers = ["Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
"Cache-Control": "no-cache",
"X-Authorization": getAccessToken()]
self.callWebServiceAlamofire(request, success: success, failure: failure)
}
}
说明：
import Foundation
import Alamofire
import iComponents
struct AlamofireRequestModal {
var method: Alamofire.HTTPMethod
var path: String
var parameters: [String: AnyObject]?
var encoding: ParameterEncoding
var headers: [String: String]?
init() {
method = .get
path = ""
parameters = nil
encoding = JSONEncoding() as ParameterEncoding
headers = ["Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
"Cache-Control": "no-cache"]
}
}
class BaseService: NSObject {
func callWebServiceAlamofire(_ alamoReq: AlamofireRequestModal, success: @escaping ((_ responseObject: AnyObject?) -> Void), failure: @escaping ((_ error: NSError?) -> Void)) {
// Create alamofire request
// "alamoReq" is overridden in services, which will create a request here
let req = Alamofire.request(alamoReq.path, method: alamoReq.method, parameters: alamoReq.parameters, encoding: alamoReq.encoding, headers: alamoReq.headers)
// Call response handler method of alamofire
req.validate(statusCode: 200..<600).responseJSON(completionHandler: { response in
let statusCode = response.response?.statusCode
switch response.result {
case .success(let data):
if statusCode == 200 {
Logs.DLog(object: "\n Success: \(response)")
success(data as AnyObject?)
} else if statusCode == 403 {
// Access token expire
self.requestForGetNewAccessToken(alaomReq: alamoReq, success: success, failure: failure)
} else {
let errorDict: [String: Any] = ((data as? NSDictionary)! as? [String: Any])!
Logs.DLog(object: "\n \(errorDict)")
failure(errorTemp as NSError?)
}
case .failure(let error):
Logs.DLog(object: "\n Failure: \(error.localizedDescription)")
failure(error as NSError?)
}
})
}
}
extension BaseService {
func getAccessToken() -> String {
if let accessToken = UserDefaults.standard.value(forKey: UserDefault.userAccessToken) as? String {
return "Bearer " + accessToken
} else {
return ""
}
}
// MARK: - API CALL
func requestForGetNewAccessToken(alaomReq: AlamofireRequestModal, success: @escaping ((_ responseObject: AnyObject?) -> Void), failure: @escaping ((_ error: NSError?) -> Void) ) {
UserModal().getAccessToken(success: { (responseObj) in
if let accessToken = responseObj?.value(forKey: "accessToken") {
UserDefaults.standard.set(accessToken, forKey: UserDefault.userAccessToken)
}
// override existing alaomReq (updating token in header)
var request: AlamofireRequestModal = alaomReq
request.headers = ["Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
"Cache-Control": "no-cache",
"X-Authorization": self.getAccessToken()]
self.callWebServiceAlamofire(request, success: success, failure: failure)
}, failure: { (_) in
self.requestForGetNewAccessToken(alaomReq: alaomReq, success: success, failure: failure)
})
}
}
import Foundation
let GET_USER_PROFILE_METHOD = "user/profile"
struct BaseURL {
// Local Server
static let urlString: String = "http://192.168.10.236: 8084/"
// QAT Server
// static let urlString: String = "http://192.171.286.74: 8080/"
static let staging: String = BaseURL.urlString + "api/v1/"
}
class APIService: BaseService {
func getUserProfile(success: @escaping ((_ responseObject: AnyObject?) -> Void), failure: @escaping ((_ error: NSError?) -> Void)) {
var request: AlamofireRequestModal = AlamofireRequestModal()
request.method = .get
request.path = BaseURL.staging + GET_USER_PROFILE_METHOD
request.headers = ["Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
"Cache-Control": "no-cache",
"X-Authorization": getAccessToken()]
self.callWebServiceAlamofire(request, success: success, failure: failure)
}
}
在代码块中：
else if statusCode == 403 {
// Access token expire
self.requestForGetNewAccessToken(alaomReq: alamoReq, success: success, failure: failure)
}
我使用请求调用getNewAccessTokenAPI（在您的例子中是刷新令牌）（它可以是基于APIService.swift的任何请求）
当我们获得新令牌时，我保存它用户默认值，然后我将更新请求（我在刷新令牌API调用中作为参数获得的请求），并将按原样传递成功和失败块。您可以创建通用刷新类：
protocol IRefresher {
associatedtype RefreshTarget: IRefreshing
var target: RefreshTarget? { get }
func launch(repeats: Bool, timeInterval: TimeInterval)
func invalidate()
}
class Refresher<T: IRefreshing>: IRefresher {
internal weak var target: T?
private var timer: Timer?
init(target: T?) {
self.target = target
}
public func launch(repeats: Bool, timeInterval: TimeInterval) {
timer = Timer.scheduledTimer(withTimeInterval: timeInterval, repeats: repeats) { [weak self] (timer) in
self?.target?.refresh()
}
}
public func invalidate() {
timer?.invalidate()
}
}
定义新的typealias：
typealias RequestManagerRefresher = Refresher<RequestManager>
并展开RequestManager：
extension RequestManager: IRefreshing {
func refresh() {
updateToken()
}
}
class RequestManager {
static var updateInterval: TimeInterval = 0
let refresher: RequestManagerRefresher
init() {
refresher = Refresher(target: self)
refresher?.launch(repeats: true, timeInterval: updateInterval)
}
}
每15分钟将更新RequestManager的令牌
更新
当然，您也可以更改更新时间。创建一个存储所需更新时间的静态变量。例如，在RequestManager中：
extension RequestManager: IRefreshing {
func refresh() {
updateToken()
}
}
class RequestManager {
static var updateInterval: TimeInterval = 0
let refresher: RequestManagerRefresher
init() {
refresher = Refresher(target: self)
refresher?.launch(repeats: true, timeInterval: updateInterval)
}
}
因此，现在您可以向令牌提供程序服务器询问令牌更新间隔，并将此值设置为updateInterval静态变量：
backendTokenUpdateIntervalRequest() { interval in
RequestManager.updateInterval = interval
}
将刷新令牌API调用的代码显示为well@AnkitJayaswal有必要吗？have addedI不需要每15分钟更新一次我的令牌，但只有在令牌过期时才需要更新@vboyko@aaisataev更新后，您应该询问后端服务器的过期时间间隔value@vboyko请您解释一下这是从哪里来的“authenticationService.refresher=refresher（target:self）”。“我很难弄明白这一点。”法泽拉罕默德说。这一行以自我为目标创建刷新器，并将其设置为属性。好极了，兄弟。正是我想要的东西。谢谢：-）