Is it good practice to check internet connection before each api call (register,save object..etc) ?

Hi,

as the question above says, Is it good practice to check internet connection before each api call (register, save object, get object, update geo ... etc) in my app ????

using swift code like :

1. import SystemConfiguration

   public class Reachability {

   class func isConnectedToNetwork() -> Bool {

   var zeroAddress = sockaddr_in(sin_len: 0, sin_family: 0, sin_port: 0, sin_addr: in_addr(s_addr: 0), sin_zero: (0, 0, 0, 0, 0, 0, 0, 0))

   zeroAddress.sin_len = UInt8(MemoryLayout.size(ofValue: zeroAddress))

   zeroAddress.sin_family = sa_family_t(AF_INET)

   let defaultRouteReachability = withUnsafePointer(to: &zeroAddress) {

   $0.withMemoryRebound(to: sockaddr.self, capacity: 1) {zeroSockAddress in

   SCNetworkReachabilityCreateWithAddress(nil, zeroSockAddress)

   }

   }

   var flags: SCNetworkReachabilityFlags = SCNetworkReachabilityFlags(rawValue: 0)

   if SCNetworkReachabilityGetFlags(defaultRouteReachability!, &flags) == false {

   return false

   }

   /* Only Working for WIFI

   let isReachable = flags == .reachable

   let needsConnection = flags == .connectionRequired

   return isReachable && !needsConnection

   */

   // Working for Cellular and WIFI

   let isReachable = (flags.rawValue & UInt32(kSCNetworkFlagsReachable)) != 0

   let needsConnection = (flags.rawValue & UInt32(kSCNetworkFlagsConnectionRequired)) != 0

   let ret = (isReachable && !needsConnection)

   return ret

   }

   }

and then check anywhere in the app:

1. if Reachability.isConnectedToNetwork() == true

   {

   print("Internet Connection Available!")

   }

   else

   {

   print("Internet Connection not Available!")

   }

OR stick with the error code throw back from each api call ?