Consuming a web service from a mobile app

Apple's App Transport Security (ATS) forces developers to use good practice, including secure connections between an app and a web service. ATS is enabled by default and your mobile apps will throw an exception if they do not connect securely.

More Information: You can read more about ATS at the following link: https://docs.microsoft.com/en-us/xamarin/ios/app-fundamentals/ats

If you need to call a web service that is secured with a self-signed certificate like our NorthwindService is, it is possible but complicated.

More Information: You can read more about handling self-signed certificates at the following link: https://docs.remotingsdk.com/Clients/Tasks/HandlingSelfSignedCertificates/NET/

For simplicity, we will allow insecure connections to the web service and disable the security checks in the mobile app.

Configuring the web service to allow insecure requests

First, we will enable...