Swift 2.3 到 Swift 3.1 迁移 - Alamofire 请求错误

Question

我正在将使用 Swift 2.3 的现有项目转换为 Swift 3.1。到目前为止，我已成功按照 Xcode 建议实施所有更改，并且还添加了最新的 PODs。

一切似乎都很好，除了以下内容 -（因为这是一个已经存在的代码，我部分理解正在做什么）。

我有以下要求 -

var request = ModifyProfileAddressAPIRequestData()
request.clientContext = ClientContext()
request.customer = AddressContext(address: CustomerAddress(countryName:countryName, countryCode: countryCode, locationName:locationName,houseNr: houseNr, streetName: streetName, postalCode:postalCode, box: box ))           
request.fields = "customer.address"
let parameters = request.toJSON()

DDLogVerbose("modifyProfileURL parameters JSON:\(parameters)")

alamofireConfigure().request(request).validate(statusCode: 200..<503).responseObject{ (responseData: DataResponse<UserProfile>) in

...

并且 ModifyProfileAddressAPIRequestData 是一个可映射结构，如下所示 -

fileprivate struct ModifyProfileAddressAPIRequestData : Mappable{

    var customer: AddressContext?
    var clientContext: ClientContext?
    var fields:String?

    init() {}

    init?(map: Map) {}

    mutating func mapping(map: Map) {        
        customer <- map["customer"]
        clientContext <- map["clientContext"]
        fields <- map["fields"]
    }    
}

我在 alamofireConfigure 请求中收到一个错误 Argument type 'ModifyProfileServiceAPIWithAlamofire.ModifyProfileAddressAPIRequestData' does not conform to expected type 'URLRequestConvertible'

我的其他请求已按照解决方案成功更改，并且没有任何问题。

我唯一的问题是 Mappable 类型的请求。它在 Swift 2.3.

中运行良好

有人可以阐明实际发生的事情以及需要做什么来解决 Swift 3.1 中出现的这个问题吗？

Answer 1

您需要实现此方法以符合 URLRequestConvertible Alamofire.swift

中的定义

/// Types adopting the `URLRequestConvertible` protocol can be used to construct URL requests.
public protocol URLRequestConvertible {
    /// Returns a URL request or throws if an `Error` was encountered.
    ///
    /// - throws: An `Error` if the underlying `URLRequest` is `nil`.
    ///
    /// - returns: A URL request.
    func asURLRequest() throws -> URLRequest
}

我觉得你需要

fileprivate struct ModifyProfileAddressAPIRequestData : Mappable,URLRequestConvertible{

    var customer: AddressContext?
    var clientContext: ClientContext?
    var fields:String?

    init() {}

    init?(map: Map) {}

    mutating func mapping(map: Map) {        
        customer <- map["customer"]
        clientContext <- map["clientContext"]
        fields <- map["fields"]
    } 

    func asURLRequest() throws -> URLRequest{
        if let url = URL(string:"your http://......"){
            return URLRequest(url: url)
        }else{
            return URLRequest()
        }

    }    
}

希望对您有所帮助

Answer 2

我想回答我自己的问题。我对请求进行了如下更改（原始代码请参阅我的问题）

var request = URLRequest(url: URL(string: modifyProfileURL)!)

                var data = ModifyProfileAddressAPIRequestData()
                data.clientContext = ClientContext()
                data.customer = AddressContext(address: CustomerAddress(countryName:countryName, countryCode: countryCode, locationName:locationName,houseNr: houseNr, streetName: streetName, postalCode:postalCode, box: box ))
                data.fields = "customer.address"
                let parameters = data.toJSONString()

                request.httpBody = parameters?.data(using: .utf8)
                request.httpMethod = "POST"
                request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
                request.setValue("Bearer \(accessTokenRequest.accessToken)", forHTTPHeaderField: "Authorization")


                alamofireConfigure()
                    .request(request)
                    .validate(statusCode: 200..<503)
                    .responseObject{ (responseData: DataResponse<UserProfile>) in
.
.
.

我基本上区分了 URLRequest 和我的数据。因此 Mappable Struct 保持不变（如我的问题）。

Swift 2.3 到 Swift 3.1 迁移 - Alamofire 请求错误

Swift 2.3 to Swift 3.1 Migration - Alamofire request error

urlrequest

nsurlrequest

ios

swift

swift3