# GMSNavigationRouteCompletionHandler

    typedef void (^GMSNavigationRouteCompletionHandler)(
        id<https://developers.google.com/maps/documentation/navigation/ios-sdk/reference/objc/Protocols/GMSNavigationRouteDescription.html> _Nullable, NSError *_Nullable)

Called when a route from the device's location to the provided destination(s) is found, or fails
to be found for a reason indicated by the `https://developers.google.com/maps/documentation/navigation/ios-sdk/reference/objc/Protocols/GMSNavigationRouteDescription.html` and `NSError`.

@related `https://developers.google.com/maps/documentation/navigation/ios-sdk/reference/objc/Classes/GMSNavigator.html`