NSURLSessionclass and all APIs that use it" and "ATS protections are not available when using lower-level networking APIs provided by Apple, or when using third-party networking libraries."
if i use the third-party networking libraries like "curl", even if use http protocol can pass the App Store review?
I responded to this in the other place you asked it.
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
let myEmail = "eskimo" + "1" + "@apple.com"