ios - swift 中 Braintree 集成期间需要授权错误

Question

我正在尝试将 Braintree 支付方法集成到我的 swift 代码中，但我被困在这里，它因错误而中断

{"error":{"statusCode":401,"name":"Error","message":"Authorization Required","code":"AUTHORIZATION_REQUIRED"}}

我所做的与 Braintree 文档中提到的完全相同。我不知道它需要哪种授权，我确实在用户登录时分配了一个授权 token ，我想知道它是否需要该授权 token ，但在此代码中没有这样的参数，我应该在其中放置该 token 用于生成用于付款方式的客户端 token 。这里执行时的打印语句在日志中给出了这个，“客户端 token 是:

{"error":{"statusCode":401,"name":"Error","message":"Authorization Required","code":"AUTHORIZATION_REQUIRED"}}", I am bit confused in its calling also. I have just started these thing so I am very sorry I have done any obvious mistake. Thanks.

        // TODO: Switch this URL to your own authenticated API

        let clientTokenURL = NSURL(string: "https://braintree-sample- 
         merchant.herokuapp.com/client_token")!
        let clientTokenRequest = NSMutableURLRequest(url: 
         clientTokenURL as URL)
        clientTokenRequest.setValue("text/plain", forHTTPHeaderField: 
         "Accept")
        URLSession.shared.dataTask(with: clientTokenRequest as 
          URLRequest) { (data, response, error) -> Void in
            // TODO: Handle errors
            if let error = error {
                print("Error: \(error.localizedDescription)")

            } else {
                print("in Session")
                let clientToken = String(data: data!, encoding: 
              String.Encoding.utf8)!
                print("Client Token is : \(clientToken)")

            }

            }.resume()
         }

Answer 1

必须在 header 中提供授权 token 才能避免此错误。相反，这个版本的代码可以正常工作。

       completionHandler:@escaping (_ response: NSDictionary?, _ error: Error?) - 
         > ()) {



        var headers: HTTPHeaders

        // pass the authToken when you get when user login
        let authToken = getAuthorizationToken()

        if(self.isValidString(object: authToken as AnyObject)) {
            headers = ["Authorization": authToken,
                       "Content-Type": "application/json",
                       "Accept": "application/json"]

         } else {
             headers = ["Content-Type": "application/json"]
         }

        AF.request(apiURL, method: .get, parameters: params as? Parameters, 
        encoding: JSONEncoding.default, headers: headers).validate().responseJSON 
    { 
           response in
            self.handleResposne(response: response) { (response, error) in
                completionHandler(response, error)
            }
        }
     }