问题描述
我正试图消除对RxAlamofire的依赖。
我目前具有此功能:
func requestData(_ urlRequest: URLRequestConvertible) -> Observable<(HTTPURLResponse,Data)> {
RxAlamofire.request(urlRequest).responseData()
}
我该如何重构并直接使用Alamofire来构建并返回RxSwift Observable?
解决方法
我建议您看一下库包装URLRequest的方式,以了解如何做...
下面是该库中的一个简化示例。本质上,您需要使用Observable.create
,使网络调用传入一个闭包,该闭包知道如何使用create
给您的观察者。
确保完成后发送完成的邮件,并确保一次性人员知道如何取消请求。
您的Base
将成为Alamofire中的一员(我不使用Alamofire,所以我不确定这可能是什么。)
extension Reactive where Base: URLSession {
/**
Observable sequence of responses for URL request.
Performing of request starts after observer is subscribed and not after invoking this method.
**URL requests will be performed per subscribed observer.**
Any error during fetching of the response will cause observed sequence to terminate with error.
- parameter request: URL request.
- returns: Observable sequence of URL responses.
*/
public func response(request: URLRequest) -> Observable<(response: HTTPURLResponse,data: Data)> {
return Observable.create { observer in
let task = self.base.dataTask(with: request) { data,response,error in
guard let response = response,let data = data else {
observer.on(.error(error ?? RxCocoaURLError.unknown))
return
}
guard let httpResponse = response as? HTTPURLResponse else {
observer.on(.error(RxCocoaURLError.nonHTTPResponse(response: response)))
return
}
observer.on(.next((httpResponse,data)))
observer.on(.completed)
}
task.resume()
return Disposables.create(with: task.cancel)
}
}
}