在Swift中使用Codable时如何保持灵活的结构 [英] How to keep a flexible structure when using Codable in Swift

问题描述

我有一个表示用户对象的API响应结构，如下所示:

I've got a API response structure, representing a user object, that looks like this:

{
    "statuscode": 200,
    "response_type": 3,
    "errormessage": null,
    "detailresponse": {
        "id": "2",
        "shopifyautosync": null,
        "platformfeepercentage": null,
        "invited": null,
        "requiresyoutubesocialmediaupdate": 1,
        // Other properties ...
}

我正在使用JSONDecoder().decode解码为以下结构:

I'm using JSONDecoder().decode to decode to following structures:

import Foundation

class Response: Decodable {
    var statuscode: Int?
    var response_type: Int?
    // Other properties
    var detailresponse: User?
}

import Foundation

class User: Codable {
    var id: String?
    var street: String?
    var supporturl: String?
    var verifiedaccount: Int?
    var showfeatureupdatemodal: Int?
    var admin: Int?
    var email: String?
    // Other properties
}

这就是我随后进行解码的方式:

Here's how I then decode:

let response = try JSONDecoder().decode(Response.self, from: jsonData)

我现在的主要问题是Response类的detailresponse属性被硬连接到User结构.但是，我在设置时需要一些灵活性， 因为在调用不同的端点(例如，合作对象而不是用户对象)时，detailresponse当然会携带其他数据结构.

My main problem now is that the Response class' detailresponse property is hard-wired to a User struct. However, I need a little flexibility in my setup, as the detailresponse will, of course, carry other data structures when calling different endpoints (e.g. a cooperation object instead of a user object).

是否有一种优雅的方法来使detailResponse保持在Response类内部灵活而不是繁琐地布线?还是用一般更好的方法来解决问题?

Is there an elegant way to keep the detailresponse inside the Response class flexible instead of hard-wiring it? Or a generally better approach to the problem instead?

推荐答案

您需要使用泛型

class Response<T:Decodable>: Decodable {
    var statuscode: Int?
    var response_type: Int?
    // Other properties
    var detailresponse: T?
}

然后

let response = try JSONDecoder().decode(Response<User>.self, from: jsonData)

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