更新Moya/RxSwift中断我的网络通话 [英] Updating Moya/RxSwift breaking my network calls

问题描述

将我的iOS应用从Moya 8更新到11，我在网络实用工具类中具有以下功能，该工具被称为从服务器获取数据并将其映射以供其他类使用:

Updating my iOS app from Moya 8 to 11 and I have the following function in a network utility class which is called to get data from a server and map it for use in other classes:

func getServerData(endpoint: MyMoyaService) -> Observable<Any> {
    let provider = RxMoyaProvider<MyMoyaService>()
    return provider.request(endpoint)
        .filterSuccessfulStatusAndRedirectCodes()
        .mapJSON()
        .flatMap { response -> Observable<Any> in
            return Observable(…)
        }
}

在更新后，RxMoyaProvider被替换为MoyaProvider，而您应该使用.rx来使用RxSwift扩展名.现在，这将返回Single而不是Observable，因此为了避免编译器错误，我还需要插入asObservable()

With the updates, RxMoyaProvider was replaced with MoyaProvider and instead you're supposed to use .rx to use the RxSwift extensions. This now returns a Single instead of an Observable so in order to avoid compiler errors I also needed to insert asObservable()

func getServerData(endpoint: MyMoyaService) -> Observable<Any> {
    let provider = MoyaProvider<MyMoyaService>()
    return provider.rx.request(endpoint)
        .asObservable()
        .filterSuccessfulStatusAndRedirectCodes()
        .mapJSON()
        .flatMap { response -> Observable<Any> in
            return Observable(…)
        }
}

但是flatMap部分根本没有被调用，并且我的网络调用不再起作用.如果我在没有RxSwift的情况下执行此操作，只需打开结果，它就可以正常工作(但与我当前的设置不符)，因此我知道网络调用和对自定义TargetType服务的更新均已正确完成./p>

But the flatMap portion is not being called at all and my network calls don't work anymore. If I do this without RxSwift, just switching on the result, it works OK (but that doesn't fit with my current setup) so I know that the network call and the updates to the custom TargetType service are done correctly.

1. 如何重新进行此操作(理想情况下，无需完全更改整个设置，并且
2. (以示感谢)，我如何利用Single而不是Observable充分利用更新的设置(因为我假设通过使用asObservable，我只是错过了有用的功能/更简洁的代码)

1. How do I get this working again, (ideally without completely changing the entire setup, and
2. (for extra credit) how do I take full advantage of the updated setup with Single instead of Observable (since I assume that by using asObservable I'm just missing out on useful features / cleaner code)

推荐答案

似乎问题在于保留了MoyaProvider对象……如果我将提供程序移到函数外部并将其作为属性存储在类中，则一切正常正确地.

Seems the issue is retaining the MoyaProvider object… If I move the provider outside of the function and store it as a property in the class, then everything works properly.

class MyClass {
     let provider = MoyaProvider<MyMoyaService>()
     func getServerData(endpoint: MyMoyaService) -> Observable<Any> {
        return provider.rx.request(endpoint)
           .asObservable()
           .filterSuccessfulStatusAndRedirectCodes()
           .mapJSON()
           .flatMap { response -> Observable<Any> in
               return Observable(…)
           }
   }
}

摘自提供商文档:

请始终记住保留您的提供商，因为如果您这样做，他们将被释放.

Always remember to retain your providers, as they will get deallocated if you fail to do so.

我想他们在某个时候更新了这些提供者的分配方式?

I suppose at some point they updated how these providers get deallocated?

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