json - Swift:无法解析对模型的 JSON 响应

Question

我正在从服务器获取数据响应，如下所示:

{
   "success": true,
   "data": {
      "cash": 0,
      "newCash": 0,
      "cashExpireAt": "2019-02-26T16:01:35.6451887+08:00",
      "isEnabled": false,
      "low_balance": true
    }
}

//下面是模型类

class WalletBalance: Mappable {

   var isSuccess               : Bool! = false
   var data                    : WalletData?

   required init?(map: Map) {
      //Code here
   }

   func mapping(map: Map) {
      isSuccess <- map["success"]
      data <- map["data"]
   }
}

class WalletData: Mappable {

   var cash                     : Int! = 0
   var newCash                  : Int! = 0
   var cashExpireAt             : String! = ""
   var isEnabled                : Bool! = false
   var low_balance              : Bool! = false

   required init?(map: Map) {
      //Code here
   }

   func mapping(map: Map) {
      cash <- map["cash"]
      newCash <- map["newCash"]
      cashExpireAt <- map["cashExpireAt"]
      isEnabled <- map["isEnabled"]
      low_balance <- map["low_balance"]
   }
}

//下面是调用服务端api的代码

Alamofire.request(url!, method: .get, parameters: nil, encoding: URLEncoding.default, headers: walletHeaders)
    .validate(statusCode: 200..<600)
    .responseObject { (response: DataResponse<WalletBalance>) in
         switch response.result {
         case .success:
            if response.result.value == nil {
               //Code here
            } else {
               completion(response.result.value!)
            }
         break
         case .failure(let error):
            print("error: ", error.localizedDescription)
         break
       }
     }

我遇到错误:

error: The operation couldn’t be completed. ObjectMapper failed to serialize response.

我尝试使用 postman 调用 api，但它在 Postman 中运行良好。

Answer 1

您是否尝试过使用 Decodable 而不是 Alamofire documentation 建议的 Mappable ？