Using asynchronous call to NEHotspotConfigurationManager.apply

I'm using the NEHotspotConfigurationManager.apply method in asynchronous way: try await NEHotspotConfigurationManager.shared.apply(config). How can I compare given error with NEHotspotConfigurationError?

My current code looks like below.

do {
  let config = NEHotspotConfiguration(ssidPrefix: prefix)
  config.joinOnce = false
  try await NEHotspotConfigurationManager.shared.apply(config)
  return .success
} catch {
  if let hotspotConfigurationError = error as? NEHotspotConfigurationError {
    switch (hotspotConfigurationError) {
      case NEHotspotConfigurationError.userDenied: return .failure
      default: break
    }
  }
}

but on the statement error as? NEHotspotConfigurationError is warning shown "Cast from 'any Error' to unrelated type 'NEHotspotConfigurationError' always fails" and it is not working. When I log the error then I get: Error Domain=NEHotspotConfigurationErrorDomain Code=8 "internal error." UserInfo={NSLocalizedDescription=internal error.}

How can I extract NEHotspotConfigurationError from this error?

NEHotSpotConfigurationError is not a subclass of Error or NSError - It is simply an enumeration of values that apply to the code of an NSError when the domain is NEHotspotConfigurationErrorDomain

You can structure your catch to apply specifically to NSError and then access the NEHotspotConfigurationError value by using the code as the rawValue based on the error domain.

You should also add a non-specific catch to handle any other cases:

do {
  let config = NEHotspotConfiguration(ssidPrefix: prefix)
  config.joinOnce = false
  try await NEHotspotConfigurationManager.shared.apply(config)
  return .success
} catch let error as NSError {
      if error.domain == NEHotspotConfigurationErrorDomain,  let errorCode = NEHotspotConfigurationError(rawValue: error.code) {{
        switch errorCode {
          case .userDenied:
              return .failure
           default: break
        }
      } else {
        // It is some other kind of NSError
      }
  }
  catch {
      // Some other error type
  }
}