télécharger une image sur un serveur à l'aide d'Alamofire
c’est mon code pour lequel je souhaite télécharger une image sur un serveur à l’aide d’Alamofire. Ce n’est pas une erreur, mais il ne peut pas transmettre d’image au serveur. que devrais-je faire ? Merci d'avance.
let url = URL(string: urlString)!
var urlRequest = URLRequest(url: url)
urlRequest.httpMethod = "POST"
let parameters = ["name": rname]
do {
urlRequest.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: [])
} catch {
print(error)
}
urlRequest.setValue("application/json", forHTTPHeaderField: "Content-Type")
let image = UIImage.init(named: "myImage")
let imgData = UIImageJPEGRepresentation(image!, 0.2)!
Alamofire.upload(multipartFormData: { MultipartFormData in
MultipartFormData.append(imgData, withName: "fileset", fileName: "name", mimeType: "image/jpg")
},with: urlRequest,encodingCompletion: { encodingResult in
switch encodingResult {
case .success(let upload, _, _):
upload.responseJSON { response in
if let info = response.result.value as? Dictionary<String, AnyObject> {
if let links = info["links"] as? Dictionary<String, AnyObject> {
if let imgLink = links["image_link"] as? String {
print("LINK: \(imgLink)")
}
}
}
} case .failure(let error):
print(error)
}
})
Essayez ci-dessous le code
let image = UIImage.init(named: "myImage")
let imgData = UIImageJPEGRepresentation(image!, 0.2)!
let parameters = ["name": rname] //Optional for extra parameter
Alamofire.upload(multipartFormData: { multipartFormData in
multipartFormData.append(imgData, withName: "fileset",fileName: "file.jpg", mimeType: "image/jpg")
for (key, value) in parameters {
multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
} //Optional for extra parameters
},
to:"mysite/upload.php")
{ (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
print(response.result.value)
}
case .failure(let encodingError):
print(encodingError)
}
}
let params: Parameters = ["name": "abcd" "gender": "Male"]
Alamofire.upload(multipartFormData:
{
(multipartFormData) in
multipartFormData.append(UIImageJPEGRepresentation(self.yourimageView.image!, 0.1)!, withName: "image", fileName: "file.jpeg", mimeType: "image/jpeg")
for (key, value) in params
{
multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
}
}, to:yourUrl,headers:nil)
{ (result) in
switch result {
case .success(let upload,_,_ ):
upload.uploadProgress(closure: { (progress) in
//Print progress
})
upload.responseJSON
{ response in
//print response.result
if response.result.value != nil
{
let dict :NSDictionary = response.result.value! as! NSDictionary
let status = dict.value(forKey: "status")as! String
if status=="1"
{
print("DATA UPLOAD SUCCESSFULLY")
}
}
}
case .failure(let encodingError):
break
}
}
Essayez ci-dessous le code pour le téléchargement MultipleImage. demandé par @Saurabh.
Cependant, il est préférable de faire le téléchargement 1 par 1 au lieu de tout télécharger en même temps.
car s'il échouait, il échouerait sur 1 image. mais tout télécharger en même temps. Si un fichier a échoué, l'utilisateur doit redémarrer le processus de téléchargement depuis le début.
Néanmoins, voici ce que vous devez faire si vous souhaitez télécharger plusieurs données à la fois.
let image1 = UIImage.init(named: "myImage1")
let image2 = UIImage.init(named: "myImage2")
let image3 = UIImage.init(named: "myImage3")
let image4 = UIImage.init(named: "myImage4")
let imgData1 = UIImageJPEGRepresentation(image!, 0.2)!
let imgData2 = UIImageJPEGRepresentation(image!, 0.2)!
let imgData3 = UIImageJPEGRepresentation(image!, 0.2)!
let imgData4 = UIImageJPEGRepresentation(image!, 0.2)!
let parameters = ["name": rname] //Optional for extra parameter
Alamofire.upload(multipartFormData: { multipartFormData in
//loop this "multipartFormData" and make the key as array data
multipartFormData.append(imgData1, withName: "fileset[0]",fileName: "file.jpg", mimeType: "image/jpg")
multipartFormData.append(imgData2, withName: "fileset[1]",fileName: "file.jpg", mimeType: "image/jpg")
multipartFormData.append(imgData3, withName: "fileset[2]",fileName: "file.jpg", mimeType: "image/jpg")
multipartFormData.append(imgData4, withName: "fileset[3]",fileName: "file.jpg", mimeType: "image/jpg")
for (key, value) in parameters {
multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
} //Optional for extra parameters
},
to:"mysite/upload.php")
{ (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
print(response.result.value)
}
case .failure(let encodingError):
print(encodingError)
}
}
Noté: multipartFormData utilise append, ce qui signifie qu'il s'agit d'un tableau de requête. vous pouvez en boucle et ajouter plus si nécessaire.
Besoin de spécifier name, fileName, mimeType, ils sont importants pour de nombreux serveurs
func upload(image: UIImage, completion: (URL?) -> Void) {
guard let data = UIImageJPEGRepresentation(image, 0.9) else {
return
}
Alamofire.upload(multipartFormData: { (form) in
form.append(data, withName: "file", fileName: "file.jpg", mimeType: "image/jpg")
}, to: "https://yourawesomebackend.com", encodingCompletion: { result in
switch result {
case .success(let upload, _, _):
upload.responseString { response in
print(response.value)
}
case .failure(let encodingError):
print(encodingError)
}
})
}
Ok Bro, j'utilise ce code avec Swift 4 et Alamofire
import Foundation
import Alamofire
class UploadImageController: NSObject {
// MARK: - shared
static let shared = UploadImageController()
// MARK: - init
let decoder = JSONDecoder()
// MARK: - uploadImageOnly
func uploadImageWith(endUrl: String, photo: UIImage?, parameters: [String : Any]?, headers: HTTPHeaders?, completion: @escaping (_ success: Bool, _ uploadImageResponse: UploadImageResponse?) -> Void ) {
Alamofire.upload(multipartFormData: { (multipartFormData) in
if let data = UIImageJPEGRepresentation(photo!, 0.5) {
multipartFormData.append(data, withName: "invoice", fileName: "invoice.jpeg", mimeType: "invoice/jpeg")
}
}, usingThreshold: SessionManager.multipartFormDataEncodingMemoryThreshold, to: endUrl, method: .post, headers: headers) { (result) in
switch result {
case .failure(let error):
print("UploadImageController.requestWith.Alamofire.usingThreshold:", error)
completion(false, nil)
case .success(request: let upload, streamingFromDisk: _, streamFileURL: _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON(completionHandler: { (response) in
switch response.result {
case .failure(let error):
print("UploadImageController.requestWith.Alamofire.upload.responseJSON:", error)
completion(false, nil)
case .success( _):
print("UploadImageController.requestWith.Alamofire.upload.responseJSON Succes")
guard let data = response.data else { return }
do {
let uploadImageResponse = try self.decoder.decode(UploadImageResponse.self, from: data)
completion(true, uploadImageResponse)
} catch let jsonError {
print("Error serializing json.ProfileController.getProfile:", jsonError)
completion(false, nil)
}
}
})
}
}
}
// MARK: - uploadImageWithParameters
func uploadImageWithParametersAnd(endUrl: String, photo: UIImage?, parameters: [String : Any]?, headers: HTTPHeaders?, completion: @escaping (_ success: Bool, _ addInvoiceResponse: AddInvoiceResponse?) -> Void ) {
Alamofire.upload(multipartFormData: { (multipartFormData) in
if let data = UIImageJPEGRepresentation(photo!, 0.5) {
multipartFormData.append(data, withName: "invoicePicture", fileName: "invoicePicture.jpeg", mimeType: "invoice/jpeg")
}
for (key, value) in parameters! {
multipartFormData.append("\(value)".data(using: String.Encoding.utf8)!, withName: "\(key)")
}
}, usingThreshold: SessionManager.multipartFormDataEncodingMemoryThreshold, to: endUrl, method: .post, headers: headers) { (result) in
switch result {
case .failure(let error):
print("UploadImageController.requestWith.Alamofire.usingThreshold:", error)
completion(false, nil)
case .success(request: let upload, streamingFromDisk: _, streamFileURL: _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON(completionHandler: { (response) in
switch response.result {
case .failure(let error):
print("UploadImageController.requestWith.Alamofire.upload.responseJSON:", error)
completion(false, nil)
case .success( _):
print("UploadImageController.requestWith.Alamofire.upload.responseJSON Succes")
guard let data = response.data else { return }
do {
let addInvoiceResponse = try self.decoder.decode(AddInvoiceResponse.self, from: data)
completion(true, addInvoiceResponse)
} catch let jsonError {
print("Error serializing json.ProfileController.getProfile:", jsonError)
completion(false, nil)
}
}
})
}
}
}
}
Par exemple, ceci AddInvoiceResponse
import Foundation
struct AddInvoiceResponse: Decodable {
let id, message: String?
}
et ici UploadImageResponse
import Foundation
struct UploadImageResponse: Codable {
let id, message: String?
}
user_photo is key for dic
Swift_file.jpg is value for value
Write the same withName is key
Write the same fileName is value
call the UploadImage(Image)
func UploadImage(img:UIImage) {
let urlfinal = “ananda.profile.php";
let parameters = ["user_id":"531", "user_photo”: "Swift_file.jpg"]
Alamofire.upload(multipartFormData: { (multipartFormData) in
multipartFormData.append(UIImageJPEGRepresentation(img, 1)!, withName: "user_photo", fileName: "Swift_file.jpeg", mimeType: "image/jpg")
for (key, value) in parameters {
multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
}
print(multipartFormData)
}, to:urlfinal)
{ (result) in
switch result {
case .success(let upload, , ):
upload.uploadProgress(closure: { (progress) in
})
upload.responseJSON { response in
print(response)
}
case .failure( _): break
}
}
}
let url = BaseViewController.API_URL + "uploads"
let image = info[UIImagePickerControllerEditedImage] as? UIImage
let imgData = UIImageJPEGRepresentation(image!, 0.2)!
let parameters = [
"user_id" : UserDefaults.standard.value(forKey: "userId")!
]
Alamofire.upload(multipartFormData: { multipartFormData in
multipartFormData.append(imgData, withName: "uload_data",fileName: "file.jpg", mimeType: "image/jpg")
for (key, value) in parameters {
multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
} //Optional for extra parameters
},
to:url)
{ (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
self.objHudHide()
print(response.result.value)
let jsonDict : NSDictionary = response.result.value as! NSDictionary
print(jsonDict)
if jsonDict["status"] as! String == "Success"
{
let detailDict : Dictionary = jsonDict["detail"] as! Dictionary<String,Any>
if let getTotalPrice = detailDict["total_price"]
{
self.lblTotalPrice.text = "$ \(getTotalPrice) + Free Shipping"
}
if let getTotalSize = detailDict["total_upload_size"]
{
self.lblTotalSize.text = "Total Size : \(getTotalSize)"
}
}
else
{
let alertViewController = UIAlertController(title: NSLocalizedString("Alert!", comment: ""), message:"Something Went wrong please try again." , preferredStyle: .alert)
let okAction = UIAlertAction(title: NSLocalizedString("Ok", comment: ""), style: .default) { (action) -> Void in
}
alertViewController.addAction(okAction)
self.present(alertViewController, animated: true, completion: nil)
}
}
case .failure(let encodingError):
print(encodingError)
}
}