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How to refresh JWT token status Code 500 in Alamofire Swift

Thanks for have look on my question. I get into point. I have to refresh JWT token using Alamofire Swift. Token expire every 30mins so while I'm making POST or GET Request token may expired and hits error code (status code) 500. Then i have to recall refresh token API and get new token from server then again i have to call previous API back. My problem is how can i call back failed API after get new token. Hope can some one help for this with better solution. Thanks in advance.

current status.

API request method,

func statusStaffCheckInOut(completion: @escaping(Bool)->Void)

guard let userID= userLoginModel.user?.id else return
guard let jwtToken = userLoginModel.jwt else return

let x_headers = ["x-authorization": "(jwtToken)","id":"(userID)"]

Alamofire.request("(BASE_MIDDLEWARE_URL)/url",method: .get, encoding: JSONEncoding.default , headers: x_headers).validate(statusCode: 200..<300)
.validate(contentType: ["application/json"]).responseJSON response in
// print("Request: (String(describing: response.request))")
// response serialization result
if let json = response.result.value as? [String:Any]
userLoginModel.staffcheckincheckout?.setValuesForKeys(json)
completion(true)
else
if let statusCode = response.response?.statusCode
print("status code (statusCode)")
if statusCode == 500 ///Check 500 Error code
print("Status code ***(500)***")
///Refresh taken call
self.refreshJWTToken(trigeredURL: "url")(response) in



completion(false)





Refresh token Method:

//MARK:- Token Refresh
func refreshJWTToken(trigeredURL: String,completion: @escaping([[String:Any]],Bool)->Void)

guard let userID = userLoginModel.user?.id else return

let url = "(BASE_MIDDLEWARE_URL)/url?id=(userID)"

Alamofire.request(url,method: .get, encoding: JSONEncoding.default).validate(statusCode: 200..<300)
.validate(contentType: ["application/json"]).responseJSON response in
if let json = response.result.value as? String
userLoginModel.jwt = json
print("Refreshed JWT: (json)")
completion([["Message":"Success"]],true)
else
completion([["Message":"Faild"]],false)





1 Answer
1

I've modified your request to accomodate your need.

Enum :

enum APIResult<T>
case success(T)
case failure(NSError)


API request method :

func statusStaffCheckInOut(callback: @escaping(APIResult<Void>) -> Void)

guard let userID= userLoginModel.user?.id else return
guard let jwtToken = userLoginModel.jwt else return

let x_headers = ["x-authorization": "(jwtToken)","id":"(userID)"]

Alamofire.request("(BASE_MIDDLEWARE_URL)/url",method: .get, encoding: JSONEncoding.default , headers: x_headers).validate(statusCode: 200..<300)
.validate(contentType: ["application/json"]).responseJSON response in
// print("Request: (String(describing: response.request))")
// response serialization result

if let json = response.result.value as? [String:Any]
userLoginModel.staffcheckincheckout?.setValuesForKeys(json)
// completion(true)
callback(.success(()))
else
if let statusCode = response.response?.statusCode
print("status code (statusCode)")
if statusCode == 500 ///Check 500 Error code
print("Status code ***(500)***")
///Refresh token call
self.refreshJWTToken(trigeredURL: "url") result in
switch result
case .success(_):
self.statusStaffCheckInOut() result in
switch result
case .success(()) : callback(.success(()))
case let .failure(error): callback(.failure(error))


case let .failure(error):
callback(.failure(error))




callback(.failure(NSError(domain: "Error", code: -1, userInfo: [NSLocalizedDescriptionKey: "Invalid authorization"])))






Refresh Token method:

//MARK:- Token Refresh
func refreshJWTToken(trigeredURL: String,callback: @escaping(APIResult<Void>) -> Void)

guard let userID = userLoginModel.user?.id else return

let url = "(BASE_MIDDLEWARE_URL)/url?id=(userID)"

Alamofire.request(url,method: .get, encoding: JSONEncoding.default).validate(statusCode: 200..<300)
.validate(contentType: ["application/json"]).responseJSON result in
switch response.result
case let .success(value):
if let json = value as? String
userLoginModel.jwt = json
print("Refreshed JWT: (json)")
callback(.success(()))
else
callback(.failure(NSError(domain: "Error", code: -1, userInfo: [NSLocalizedDescriptionKey: "Invalid authorization"])))

case let .failure(error):
callback(.failure(NSError(domain: "Error", code: -1, userInfo: [NSLocalizedDescriptionKey: "Invalid authorization"])))





I'm using generic return for the api result. You can pass anything in success callback.

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