POST request error: NSURLConnection HTTP load failed iOS 10

Question

I'm new to iOS programming. I want to connect my app to my web service (HTTPS).

Why is XCode telling me this error when I run POST request with 'Alamofire 4.0' in iOS 10?

This error doesn't appear when I use iOS 9 simulator. I've tried various ways as people say on stackoverflow and none of them solved my problem.

Update:

I have added this inside my info.plist, and still get the same error.

How to implement ATS in iOS 10?

Thanks in advance.

Answer 1

In my case, I changed the SSL certificate on my API domain with the trusted one as mentioned by Apple in this link.

Answer 2

App Transport Security (ATS) enforces best practices in the secure connections between an app and its back end. ATS prevents accidental disclosure, provides secure default behavior, and is easy to adopt; it is also on by default in iOS 9 and OS X v10.11. You should adopt ATS as soon as possible, regardless of whether you’re creating a new app or updating an existing one.

If you’re developing a new app, you should use HTTPS exclusively. If you have an existing app, you should use HTTPS as much as you can right now, and create a plan for migrating the rest of your app as soon as possible. In addition, your communication through higher-level APIs needs to be encrypted using TLS version 1.2 with forward secrecy. If you try to make a connection that doesn't follow this requirement, an error is thrown. If your app needs to make a request to an insecure domain, you have to specify this domain in your app's Info.plist file.

Please for more details refer Apple Document.

You need to do changes inside your Info.plist

<key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
    </dict>

open Info.plist file like

Add TransportSecurity inside

or

Answer 3

Check your Mobile network, Mostly this is the reason.