如何在一个处理程序中处理所有类型的请求的响应，又如何使用Alamofire和Moya唯一地处理每个请求 [英] How to handle the response of all types of requests in one handler, but also uniquely handle every request with Alamofire and Moya

问题描述

在我的应用中，我使用 Moya 和 Alamofire （还有Moya / RxSwift和 Moya-ObjectMapper ）用于所有网络请求和响应的库。

In my app I use Moya and Alamofire (And also Moya/RxSwift and Moya-ObjectMapper) libraries for all network requests and responses.

我想在一个处理程序中处理所有类型的请求的响应，但还要唯一地处理每个请求。

I would like to handle the response of all types of requests in one handler, but also uniquely handle every request.

例如，对于任何请求，我都可以获取响应无效版本，如果出现此错误，我想避免检查每个响应。

For example for any request I can get the response "Not valid Version", I would like to avoid to check in every response if this error arrived.

是否有一种优雅的方式来使用 Moya 处理此用例？

Is there an elegant way to handle this use case with Moya?

推荐答案

显然，这很简单，您只需要创建自己的插件即可。并将其添加到您的Provider实例中（您可以在init函数中添加它）

Apparently that is very simple, You just should create your own plugin. And add it to your Provider instance (You can add it in the init function)

例如：

struct NetworkErrorsPlugin: PluginType {

    /// Called immediately before a request is sent over the network (or stubbed).
    func willSendRequest(request: RequestType, target: TargetType) { }

    /// Called after a response has been received, but before the MoyaProvider has invoked its completion handler.
    func didReceiveResponse(result: Result<Moya.Response, Moya.Error>, target: TargetType) {

        let responseJSON: AnyObject
        if let response = result.value {
            do {
                responseJSON = try response.mapJSON()
                if let response = Mapper<GeneralServerResponse>().map(responseJSON) {
                    switch response.status {
                    case .Failure(let cause):
                        if cause == "Not valid Version" {
                            print("Version Error")
                        }
                    default:
                        break
                    }
                }
            } catch {
                print("Falure to prase json response")
            }
        } else {
            print("Network Error = \(result.error)")
        }
    }
}

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