ios - swift 3 : How to convert struct to Parameters

Question

我有一个结构如下

struct UserInfo
{
    var userId : Int
    var firstName : String
    var lastName : String
}

如何序列化 UserInfo 的实例以键入 Parameters？

var user = UserInfo(userId: 1, firstName: "John", lastName: "Skew")

// Convert user to Parameters for Alamofire
Alamofire.request("https://httpbin.org/post", parameters: parameters)

Answer 1

只需实现一个dictionaryRepresentation 计算变量或函数:

struct UserInfo {
    var userId : Int

    var firstName : String
    var lastName : String

    var dictionaryRepresentation: [String: Any] {
        return [
            "userId" : userId,
            "firstName" : firstName,
            "lastName" : lastName
        ]
    }
}

用法:

var user = UserInfo(userId: 1, firstName: "John", lastName: "Skew")
let userDict = user.dictionaryRepresentation