Call request by request Alamofire swift - swift

Question

I wonder how I could make the request executed one by one. It's about image processing. And the server cannot process more than one image. The problem is that I need to send 10 pictures at a time, and if I send everything at once, I have a problem with the timeout, and now I'm interested in how to send the next request when response from the previous one arrives?
func clearingImage() {
if clearingImageArray.count < 0 || indexOfClearImage >= clearingImageArray.count
{
guard let imageName = ImageFilenameUtilities.getNameOfImageFromPath(filePath: clearingImageArray[indexOfClearImage]) else
{
indexOfClearImage+=1
clearingImage()
return
}
guard let clearType = ImageFilenameUtilities.getClearTypeFromFilename(filename: imageName) else
{
indexOfClearImage+=1
clearingImage()
return
}
guard let image = gallery?.getImageForPath(path: clearingImageArray[indexOfClearImage]) else
{
indexOfClearImage+=1
clearingImage()
return
}
sendImageToServer(image: image, imageName: imageName)
}
}
func sendImageToServer(image:UIImage,imageName:String)
{
let url = "example.com"
let headers : HTTPHeaders = [
"Connection": "Keep-Alive"
// "Content-Type": "application/x-www-form-urlencoded"
]
let manager = Alamofire.SessionManager.default
manager.session.configuration.timeoutIntervalForRequest = 12000
manager.session.configuration.timeoutIntervalForResource = 12000
manager.upload(multipartFormData: { multipleData in
for (key, value) in parameter {
multipleData.append(value.data(using: String.Encoding.utf8)!, withName: key)
}
multipleData.append(
imageData, withName: "image", fileName: imageName, mimeType: "image/jpg")}, to: url, method: .post, headers: headers){
(result) in
switch result {
case .success(let upload, _, _):
upload.responseJSON { response in
self.indexOfClearImage += 1
if let image = UIImage(data: response.data!) {
//save image to galery
}
else
{
if let error = response.result.error {
if error._code == NSURLErrorTimedOut {
self.indexOfClearImage -= 1
}
}
}
}
case .failure(let encodingError):
//send next image to server
self.indexOfClearImage += 1
}
}
self.clearingImage()
}

Answer 1

Just send the 2nd request on the 1st completion block, when you get the response, and so on.
func firstRequest() {
AF.request("url/here").response { response in
self.secondRequest()
}
}
func secondRequest() {
AF.request("url/here").response { response in
// call 3rd request and so on...
}
}