How to programmatically add a proxy to an NSURLSession

Question

Looking over the documentation of NSURLSession and NSURLSessionConfiguration, I was under the impression I should configure it with a dictionary li

Answer 1

Swift 3 extension

extension URLSession {

    func withProxy(proxyURL: String, proxyPort: Int) -> URLSession {

        var configuration = self.configuration

        configuration.connectionProxyDictionary = [
            kCFNetworkProxiesHTTPEnable as AnyHashable : true,
            kCFNetworkProxiesHTTPPort as AnyHashable : proxyPort,
            kCFNetworkProxiesHTTPProxy as AnyHashable : proxyURL
        ]

        return URLSession(configuration: configuration, delegate: self.delegate, delegateQueue: self.delegateQueue)
    }
}

Usage:

let session = URLSession().withProxy(proxyURL: "xxxxxx", proxyPort: 8321)