相关疑难解决方法(0)

对于API请求,我正在尝试使用代理设置URLSession.出于测试目的,我使用公共代理和响应IP的API.

func makeRequestViaUrlSessionProxy(_ url: String, completion: @escaping (_ result: String?) -> ()) {

    let request = URLRequest(url: URL(string: url)!)

    let config = URLSessionConfiguration.default
    config.requestCachePolicy = URLRequest.CachePolicy.reloadIgnoringLocalCacheData
    config.connectionProxyDictionary = [AnyHashable: Any]()
    config.connectionProxyDictionary?[kCFNetworkProxiesHTTPEnable as String] = 1
    config.connectionProxyDictionary?[kCFNetworkProxiesHTTPProxy as String] = "142.54.173.19"
    config.connectionProxyDictionary?[kCFNetworkProxiesHTTPPort as String] = 8888

    let session = URLSession.init(configuration: config, delegate: nil, delegateQueue: OperationQueue.current)

    let task = session.dataTask(with: request) {
        (data: Data?, response: URLResponse?, error: Error?) in
        if error != nil {
            NSLog("Client-side error in request to \(url): \(error)")
            completion(nil) …