Alamofire: iOS 11 localhost http access

[hyouuu]

• [x] I've read, understood, and done my best to follow the *CONTRIBUTING guidelines.

What did you do?

Updated to Xcode 9 with the latest Alamofire pod, and sending GET request to http://localhost:8080/storys

What did you expect to happen?

200 response with normal payload as it always does.

What happened instead?

Alamofire request gets error:

Error: Optional(Error Domain=NSURLErrorDomain Code=-1004 "Could not connect to the server." UserInfo={NSUnderlyingError=0x1c0255db0 {Error Domain=kCFErrorDomainCFNetwork Code=-1004 "(null)" UserInfo={_kCFStreamErrorCodeKey=61, _kCFStreamErrorDomainKey=1}}, NSErrorFailingURLStringKey=http://localhost:8080/storys, NSErrorFailingURLKey=http://localhost:8080/storys, _kCFStreamErrorDomainKey=1, _kCFStreamErrorCodeKey=61, NSLocalizedDescription=Could not connect to the server.})

Note that:
1) https request works for my real server
2) I verified curl & postman & Chrome works on the localhost url, and added ATS keys to info.plist:

<key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
        <key>NSAllowsLocalNetworking</key>
        <true/>
        <key>NSExceptionDomains</key>
        <dict>
            <key>localhost</key>
            <dict>
                <key>NSExceptionAllowsInsecureHTTPLoads</key>
                <true/>
                <key>NSExceptionRequiresForwardSecrecy</key>
                <false/>
                <key>NSIncludesSubdomains</key>
                <true/>
                <!-- Optional: Specify minimum TLS version -->
                <key>NSTemporaryExceptionMinimumTLSVersion</key>
                <string>TLSv1.1</string>
                <key>NSRequiresCertificateTransparency</key>
                <false/>
            </dict>
        </dict>
    </dict>

Could the iOS 11 deprecations of some cyphers hashes and protocols?
https://stackoverflow.com/a/46481875/1032900

Alamofire Environment

Alamofire version: 4.0.0
Xcode version: 9.0
Swift version: 4
Platform(s) running Alamofire: iOS 11
macOS version running Xcode: 10.12.6

[jshier]

Strange. That error is very generic but I'm pretty sure it's not an ATS or other issue like that. Instead it's more likely the server isn't running at all. Is this a server that's running locally on device? Or are you connecting to a server on the local network? I asked, because cURL, Postman, and Chrome wouldn't work with a server on a local device. Please verify that's the server is actually running.

While this is unlikely to be an Alamofire issue, I won't close the issue yet, as I'm interested in seeing whether local server behavior has changed in iOS 11.

[hyouuu]

For some reason it works today o.O I did update macOS to High Sierra and not sure whether there was a bug with Xcode 9 on Sierra - also please note I was running on simulator not a local device, and the server was definitely running when I reported.

Thanks for the reply and hopefully the above information provides some insights.

[speedoholic]

@jshier Thanks for the response to this query. I also faced a similar problem and learned that it was a server issue.
@hyouuu Thanks for making your post well detailed.

[pandeyshivang]

@hyouuu @jshier @speedoholic @jshier Just put your local IP instead of localhost in url .
e.g. http://192.168.1.34:3000/
That should be work....

[sgovindgari]

Best way to resolve this is using ngrok

[peimanrn]

Thanks @pandeyshivang

[pandeyshivang]

Thanks @pandeyshivang

Welcome @peimanrn 🙏