How to get the user agent on iOS?

Question

Is there a way on iOS to get the user agent of the device? I don\'t want to hard code it since I need the user agent for all devices and I need to append the user agent to a

Answer 1

Mobile application in every request must send his User-Agent header with build version and device information

User agent configuration info

So, user agent should be like:

User-Agent: /version () ()

For iOS:

User-Agent: (; ; iOS/) CFNetwork/ Darwin/

How to get each of the components?

1. Headers Key - u can hardcode or use some constant values

2. AppName and version - grab from Info.plist

   let infoPlist = try? PListFile()
   let appName = infoPlist.data.bundleName
   let version = infoPlist.data.versionNumber
   let build = infoPlist.data.buildNumber
   

3. Info about Device

modelName - you can obtain like described here

    let modelName = UIDevice.current.modelName

other components:

    let platform = UIDevice.current.systemName
    let operationSystemVersion = ProcessInfo.processInfo.operatingSystemVersionString

4. CFNetwork version

   static var cfNetworkVersion: String? {
     guard
       let bundle = Bundle(identifier: "com.apple.CFNetwork"),
        let versionAny = bundle.infoDictionary?[kCFBundleVersionKey as String],
        let version = versionAny as? String
         else { return nil }
     return version
   }
   

from here

5. Darwin Version

    var systemInfo = utsname()
    uname(&systemInfo)
    let machineMirror = Mirror(reflecting: systemInfo.release)
    let darvinVersionString = machineMirror.children.reduce("") { identifier, element in
      guard let value = element.value as? Int8,
        value != 0 else {
          return identifier
      }
   
      return identifier + String(UnicodeScalar(UInt8(value)))
    }
   

from here

Result:

MyApp/1.8.199 (iOS; iPhone XS; Version 13.3 (Build 17C45)) CFNetwork/1121.2.1 Darvin/19.3.0