如何使用alamofire在ios中传递访问令牌

Question

我在登录时从API获取访问令牌但是我不知道如何通过必须包含此令牌的所有接口传递令牌以基于用户令牌从API检索数据。

这里是View Controller用于登录

@IBAction func login(_ sender: UIButton) {
        //getting the username and password
        let parameters: Parameters=[
        "name":userText.text!,
        "password":passwordTet.text!
        ]
        var token = String()// global variable
        let headers = [
            "Authorization" : String(format: "Bearer: @%", token)
        ]
    
        Alamofire.request(URL_USER_LOGIN, method: .post, parameters: parameters, headers: headers).responseJSON
            {
                response in
        print(response)

                //getting the json value from the server
                        if let result = response.result.value {
                            let jsonData = result as! NSDictionary

                           // if there is no error
                            if((!(jsonData.value(forKey: "error") != nil) )){
                                // if there is a token
                                token = (jsonData.object(forKey: "access_token") as! String?)!
                                print(token)
                                                
                                       //switching the screen
                      let Home_AdminViewController = self.storyboard?.instantiateViewController(withIdentifier: "TabBarViewController") as! TabBarViewController
                    self.navigationController?.pushViewController(Home_AdminViewController, animated: true)
                          self.dismiss(animated: false, completion: nil)
                        }
                            else {
                                //error message in case of invalid credential
                                self.LabelMessage.text = "Invalid username or password"
                            }

                }
        }

这里的视图控制器示例必须采用在登录时生成的相同令牌来从API检索用户的数据但是我不知道如何制作它可以帮助我吗？

var newOfferArray = [AnyObject]()
    override func viewDidLoad() {
        super.viewDidLoad()
        //Send request to API
        Alamofire.request("http://127.0.0.1:8000/api/offers").responseJSON { response in

            print(response)
            let result = response.result
            if let dict  = result.value  as? Dictionary<String,AnyObject>{
            if let innerdict = dict ["data"] {
                    self.newOfferArray = innerdict as! [AnyObject]
                    print(self.newOfferArray)
                    self.tableView.reloadData()
                }
            }
        }
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return newOfferArray.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath ) as? Child1TableViewCell
        if self.newOfferArray.count > 0{
            //variables
            let name = self.newOfferArray[indexPath.row]
            cell?.Namelabel.text = name["name"] as? String

        }
       

        return cell!
    }

Answer 1

您可以使用静态变量创建一个简单的结构，如：

struct Credentials {
    static var token: String?
    static var refreshToken: String?
}

这个，你可以打电话：Credentials.token或Credentials.refreshToken

或者简单地说，在一个空的swift文件中，添加这些变量而不需要任何类或结构：

var token: String?
var refreshToken: String?

在这种情况下，您可以在任何文件中直接访问token

Answer 2

你可以尝试下面的代码

let auth = "your token"
let authData = auth.data(using: String.Encoding.utf8)!
let base64EncodedCredential = authData.base64EncodedString()
let authString = "Basic \(base64EncodedCredential)"
let authorization = ["Authorization" : authString]

在某些文件中使高位代码常量为全局

Alamofire.request(url, method: .get, parameters: para, encoding: URLEncoding.default, headers: authorization).responseSwiftyJSON { (result) in
      print("url:=",url)
      print("parameter:=",para)
      print("response:=",result.value ?? "nil")
      completion(result.result)
}

Answer 3

你可以查看Alamofire关于RequestAdatper的文档，我想这就是你想要的。

class AccessTokenAdapter: RequestAdapter {
    private let accessToken: String

    init(accessToken: String) {
        self.accessToken = accessToken
    }

    func adapt(_ urlRequest: URLRequest) throws -> URLRequest {
        var urlRequest = urlRequest

        if let urlString = urlRequest.url?.absoluteString, urlString.hasPrefix("https://httpbin.org") {
            urlRequest.setValue("Bearer " + accessToken, forHTTPHeaderField: "Authorization")
        }

        return urlRequest
    }
}

let sessionManager = SessionManager()
sessionManager.adapter = AccessTokenAdapter(accessToken: "1234")

sessionManager.request("https://httpbin.org/get")

Answer 4

谢谢大家！我使用Keychainwrapper库https://github.com/jrendel/SwiftKeychainWrapper得到了答案

首先，我在登录请求中保存访问令牌，然后我可以在任何地方使用。