i have NodeJs / ExpressJs as backend server (Ubuntu 18.04.3 LTS), when i make an AJAX GET or POST request from front-end (JavaScript) or from POSTMAN, it works perfectly fine (as expected). When i make a GET request using Alamofire (swift) , that too works as expected, but when i make a POST request from Alamofire, empty data is sent (or received) to the NodeJs / ExpressJs server.
In my NodeJs server, i am using formidable to parse body (FormData) and in my front-end (JavaScript) i am sending data using FormData api and in headers, content-type: false.
When i send a POST request from Alamofire to my backend server where in headers i have set
- content type to false
- content type to multipart/formdata
- no content type
but still empty data is being sent (or empty data is being received on the server)
alamofire code
func uploadPostWithImageAndText() {
let parameters = [
"shared" : "Public",
"post": self.textView.text
] as [String : Any]
let recovedUserJsonData = UserDefaults.standard.object(forKey: "userData")
let recovedUserJson = NSKeyedUnarchiver.unarchiveObject(with: recovedUserJsonData as! Data) as! NSDictionary
// print(recovedUserJson)
var token = recovedUserJson.value(forKey: "token") as! String
token = String(format: "%@", token)
// print(token)
let headers = [
"Authorization" : token
]
let imgData = imgView.image?.jpegData(compressionQuality: 0.2)
Alamofire.upload(multipartFormData: { multipartFormData in
//Parameter for Upload files
multipartFormData.append(imgData!, withName: "fileUpload",fileName: "fileUpload" , mimeType: "image/png")
for (key, value) in parameters
{
multipartFormData.append(key.data(using: .utf8)!, withName: value as! String)
}
}, usingThreshold:UInt64.init(),
to: "https://apis.example.com/apis/feed/create-post", //URL Here
method: .post,
headers: headers, //pass header dictionary here
encodingCompletion: { (result) in
switch result {
case .success(let upload, _, _):
print("the status code is :")
upload.uploadProgress(closure: { (progress) in
print("something")
})
upload.responseJSON { response in
print("the resopnse code is : \(response.response?.statusCode)")
print("the response is : \(response)")
}
break
case .failure(let encodingError):
print("the error is : \(encodingError.localizedDescription)")
break
}
})
and in ExpressJs i have body parser for FormData
app.use(bodyParser.urlencoded({ limit: '50mb', extended: true }));
app.use(bodyParser.json({ limit: '50mb' }));
and i am using formidable module to parse body.
error i am getting in Alamofire
<4> load failed with error Error Domain=NSURLErrorDomain Code=-1001 "The request timed out." UserInfo={_kCFStreamErrorCodeKey=-2102, NSUnderlyingError=0x60000193f150 {Error Domain=kCFErrorDomainCFNetwork Code=-1001 "(null)" UserInfo={_kCFStreamErrorCodeKey=-2102, _kCFStreamErrorDomainKey=4}}, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask <16AA23FC-8DFC-4598-B032-96636892F2B7>.<4>, _NSURLErrorRelatedURLSessionTaskErrorKey=(
"LocalDataTask <16AA23FC-8DFC-4598-B032-96636892F2B7>.<4>"
), NSLocalizedDescription=The request timed out., NSErrorFailingURLStringKey=https://apis.example.com/apis/feed/create-post, NSErrorFailingURLKey=https://apis.example.com/apis/feed/create-post, _kCFStreamErrorDomainKey=4} [-1001]
and i have console logged incoming request in backend
console.log('fields', fields);
for the route
router.post('/create-post' ,postCont.createPost);
whose log is empty
fields {}
I do not understand why empty data is received at the backend (api endpoint) and Thank you.
