ios - Multipart request with ios10 -


i'm working on multipart request swift, ios10.

saved image server code below. , receive 404 error when open image url.

i can't find what's wrong in code though referred webpage - https://newfivefour.com/swift-form-data-multipart-upload-urlrequest.html

please help.

func connecttoserverwithimage(urlstring: string, param: any, image: uiimage, target: nsobject, action: selector) {      let url = url(string: urlstring)!     var request = urlrequest(url: url)      // set request configuration     let boundary = "boundary-\(uuid().uuidstring)"     request.setvalue("multipart/form-data; boundary=\(boundary)", forhttpheaderfield: "content-type")     request.httpmethod = "post"      // set body     let body = nsmutabledata()     let paramdic = param as! dictionary<string, string>      // set param body     (key, value) in paramdic {         body.append("--\(boundary)\r\n".data(using: .utf8, allowlossyconversion: false)!)         body.append("content-disposition: form-data; name=\"\(key)\"\r\n\r\n".data(using: .utf8)!)         body.append("\(value)\r\n".data(using: .utf8)!)     }      // set image body     let filename = paramdic["\(paramdic["type"]!)_mst_no"]! + ".jpg"     body.append("--\(boundary)\r\n".data(using: .utf8, allowlossyconversion: false)!)     body.append("content-disposition: form-data; name=\"file\"; filename=\"\(filename)\"\r\n\r\n".data(using: .utf8, allowlossyconversion: false)!)     body.append("content-type: image/jpg\r\n\r\n".data(using: .utf8, allowlossyconversion: false)!)     body.append(uiimagejpegrepresentation(image, 1)!)     body.append("\r\n".data(using: .utf8, allowlossyconversion: false)!)     body.append("--\(boundary)--\r\n".data(using: .utf8, allowlossyconversion: false)!)      request.httpbody = body data      // url configuration     let urlconfig = urlsessionconfiguration.ephemeral     urlconfig.timeoutintervalforrequest = 5     urlconfig.timeoutintervalforresource = 5      let session = urlsession(configuration: urlconfig)      let datatask = session.datatask(with: request) { (data, response, error) in         session.finishtasksandinvalidate()         dispatchqueue.main.async {             if error == nil {                  if let httpurlresponse = response as? httpurlresponse {                     if httpurlresponse.statuscode == 200 {                         {                             let jsonobject: dictionary<string, any> = try jsonserialization.jsonobject(with: data!, options: .mutablecontainers) as! dictionary<string, any>                              if jsonobject.isempty {                                 target.perform(action, with: ["res_code:": "null"])                             }                         } catch let _ {}                     }                 }             }         }     }     datatask.resume() }

sample code multipart api in ios 10:

func api_multipart() {            var url_request  = urlrequest(url: url(string: employerregapi())!)     url_request.httpshouldhandlecookies = false     url_request.timeoutinterval = 60     url_request.httpmethod = "post"      let boundary = "-----------sample------------"     let form_data = "multipart/form-data; boundary=\(boundary)"     url_request.setvalue(form_data, forhttpheaderfield: "content-type")      let body = nsmutabledata()      /*----------------- company -----------------*/     body.appendstring("--\(boundary)\r\n")     body.appendstring("content-disposition: form-data; name=\"\(str_company_name_key)\r\n\r\n")     body.appendstring("\(str_company_name_val)\r\n")      /*--------------- address id ---------------*/     body.appendstring("--\(boundary)\r\n")     body.appendstring("content-disposition: form-data; name=\"\(str_address2_key)\r\n\r\n")     body.appendstring("\(str_address_val)\r\n")      /*--------------- state code ---------------*/     body.appendstring("--\(boundary)\r\n")     body.appendstring("content-disposition: form-data; name=\"\(str_country_key)\r\n\r\n")     body.appendstring("\(str_country_val)\r\n")      /*------------- profile image --------------*/     if (str_photo_val != nil)     {         body.appendstring("--\(boundary)\r\n")         let mimetype = "image/jpg"         let deffilename = generate_image_name_multipart() //yourimagename.jpg         let imagedata = uiimagejpegrepresentation(str_photo_val!, 1)          body.appendstring("content-disposition: form-data; name=\"\(str_photo_key)\"; filename=\"\(deffilename)\"\r\n")         body.appendstring("content-type: \(mimetype)\r\n\r\n")         body.append(imagedata!)         body.appendstring("\r\n")     }     body.appendstring("--\(boundary)\r\n")      url_request.httpbody = body data     let postlength: string = "\(uint(body.length))"     url_request.setvalue(postlength, forhttpheaderfield: "content-length")      let task = urlsession.shared.datatask(with: url_request, completionhandler: { (data, response, error) in         if error != nil{             print("error -> \(string(describing: error))")             dispatchqueue.main.async {                 hideloadinghud(for_view: self.view)             }             return         }         {             let result = try jsonserialization.jsonobject(with: data!, options: []) as? [string:anyobject]             print("result -> \(string(describing: result))")             dispatchqueue.main.async {                 hideloadinghud(for_view: self.view)             }          } catch {             print("error -> \(error)")             dispatchqueue.main.async {                 hideloadinghud(for_view: self.view)             }         }     })     task.resume() }   func generate_image_name_multipart() -> string {     let min: int = 1     let max: int = 999     let randnum: int = (int(arc4random_uniform(3)) % int((max - min) + min))     print("random number: \(randnum)")     let dateformate = dateformatter()     dateformate.dateformat = "ddmmyyyyhhmmss"     let date: string = dateformate.string(from: date())     let img_name: string = "ios_\(date)_\(randnum).jpg"     return img_name }

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