ios - Network error while uploading multipart data(youTube video) not giving error response -


i using alamofire code uploading youtube video. works fine. suppose if while uploading, switch off net, uploading stops not give me error in response. posting code below:

alamofiremanager.upload(multipartformdata: { (multipartformdata) in              let snippetvaluedictionary = requesttype.params             let statusvaluedictionary = ["privacystatus":"private"]              let videometadictionary = ["snippet":snippetvaluedictionary,"status":statusvaluedictionary]              do{                 let json = try jsonserialization.data(withjsonobject: videometadictionary, options: jsonserialization.writingoptions.prettyprinted)                  multipartformdata.append(json, withname: "snippet", mimetype: "application/json")              }             catch{              }              multipartformdata.append(localvideourl, withname: "video", filename: "video.mp4", mimetype: "application/octet-stream")           }, to: urlyoutube, method: .post, headers: requesttype.headers, encodingcompletion: { (result) in              switch result {              case .success(let upload, _, _):                 upload.uploadprogress(closure: { progress in                      print("upload progress: \(progress.fractioncompleted)")                  }).validate().responsejson(completionhandler: { dataresponse in                      if dataresponse.result.error != nil {                         print("error description: \(dataresponse.result.error?.localizeddescription)")                      }                     else {                         let json = json(dataresponse.result.value!)                         print(json)                     }                 })              case .failure(let encodingerror):                 print(encodingerror)              }         })

when switch off net, uploading stops. when switch on, uploading restarts again , upload progress called. when internet not available while data being uploaded, need error in response user informed network! can please suggest may doing wrong here?


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