ios - How send post data with text parameter and image file? -

i make application allows user upload image , several our server. if post text data code post data server when try post text data image data, server throw exception.

here code:

class func enroll(image: uiimage, date: string, studentid: string, guardianid:string, type:string){     //date,student_id,type,guardian_id,image, type      var textbody : string?     let imagedata = uiimagepngrepresentation(image)      let boundary = nsstring(format: "---------------------------14737809831466499882746641449")     let contenttype = nsstring(format: "multipart/form-data; boundary=%@",boundary)     let url: nsurl = nsurl(string: "http://api-cc.appsence.net/v1/signs")!      let request:nsmutableurlrequest = nsmutableurlrequest(url:url)     request.httpmethod = "post"      let body : nsmutabledata = nsmutabledata()      body.appenddata(nsstring(format: "\r\n--%@\r\n", boundary).datausingencoding(nsutf8stringencoding)!)     body.appenddata(nsstring(format:"content-disposition: form-data; name=\"profile_img\"; filename=\"img.jpg\"\\r\n").datausingencoding(nsutf8stringencoding)!)     body.appenddata(nsstring(format: "content-type: application/octet-stream\r\n\r\n").datausingencoding(nsutf8stringencoding)!)     body.appenddata(imagedata!)     body.appenddata(nsstring(format: "\r\n--%@\r\n", boundary).datausingencoding(nsutf8stringencoding)!)      //fill text value here     textbody = "date=\(date)&student_id=\(studentid)&guardian_id=\(guardianid)&type=\(type)"      print("text body : \(textbody!)")     let bodytextdata = textbody!.datausingencoding(nsutf8stringencoding);     body.appenddata(bodytextdata!)     request.addvalue(contenttype string, forhttpheaderfield: "content-type")     // if data string use data using encoding      request.httpbody = body      nsurlsession.sharedsession().datataskwithrequest(request){ (data:nsdata?, response:nsurlresponse?, error:nserror?) -> void in          if error == nil{              print("sukses : \(nsstring(data: data!, encoding: nsutf8stringencoding)!)")          }else{              print("ini error save \(nsstring(data: data!, encoding: nsutf8stringencoding)!)")          }       }.resume()  } 

how can fix issue?

alamofire 3+

  // import alamofire   func uploadwithalamofire() {     let image = uiimage(named: "myphoto")!      // define parameters     let parameters = [       "hometown": "bodrum",       "living": "izmir"     ]      // begin upload     alamofire.upload(.post, "upload_url",       // define headers here       headers: ["authorization": "auth_token"],       multipartformdata: { multipartformdata in          // import image request         if let imagedata = uiimagejpegrepresentation(image, 1) {           multipartformdata.appendbodypart(data: imagedata, name: "file", filename: "myimage.png", mimetype: "image/png")         }          // import parameters         (key, value) in parameters {           multipartformdata.appendbodypart(data: value.datausingencoding(nsutf8stringencoding)!, name: key)         }       }, encodingmemorythreshold: manager.multipartformdataencodingmemorythreshold,       encodingcompletion: { encodingresult in         switch encodingresult {         case .success(let upload, _, _):           upload.responsejson { result in             debugprint(result)           }         case .failure(let encodeerror):           print(encodeerror)         }     })   }