Upload image AWS S3 bucket in swift - ios

Question

I'm trying to upload an image to a bucket S3 AWS, I am using the following code. but do I use it to upload to an image stored in a variable or imageView.image?
let ext = "jpg"
let imageURL = NSBundle.mainBundle().URLForResource("imagename", withExtension: ext)
print("imageURL:\(imageURL)")
let uploadRequest = AWSS3TransferManagerUploadRequest()
uploadRequest.body = imageURL
uploadRequest.key = NSProcessInfo.processInfo().globallyUniqueString + "." + ext
uploadRequest.bucket = S3BucketName
uploadRequest.contentType = "image/" + ext
let transferManager = AWSS3TransferManager.defaultS3TransferManager()
transferManager.upload(uploadRequest).continueWithBlock { (task) -> AnyObject! in
if let error = task.error {
print("Upload failed ❌ (\(error))")
}
if let exception = task.exception {
print("Upload failed ❌ (\(exception))")
}
if task.result != nil {
let s3URL = NSURL(string: "http://s3.amazonaws.com/\(self.S3BucketName)/\(uploadRequest.key!)")!
print("Uploaded to:\n\(s3URL)")
}
else {
print("Unexpected empty result.")
}
return nil
}

Answer 1

AWSS3TransferManager is deprecated. Use AWSS3TransferUtility instead.
The transfer utility provides methods for both single-part and
multipart uploads. When a transfer uses multipart upload, the data is
chunked into a number of 5 MB parts which are transferred in parallel
for increased speed.
func uploadFile(withImage image: UIImage) {
let access = "YOUR ACCESS KEY"
let secret = "YOUR SECRET KEY"
let credentials = AWSStaticCredentialsProvider(accessKey: access, secretKey: secret)
let configuration = AWSServiceConfiguration(region: AWSRegionType.USEast1, credentialsProvider: credentials)
AWSServiceManager.default().defaultServiceConfiguration = configuration
let s3BucketName = "YOUR BUCKET NAME"
let compressedImage = image.resizedImage(newSize: CGSize(width: 80, height: 80))
let data: Data = compressedImage.pngData()!
let remoteName = generateRandomStringWithLength(length: 12)+"."+data.format
print("REMOTE NAME : ",remoteName)
let expression = AWSS3TransferUtilityUploadExpression()
expression.progressBlock = { (task, progress) in
DispatchQueue.main.async(execute: {
// Update a progress bar
})
}
var completionHandler: AWSS3TransferUtilityUploadCompletionHandlerBlock?
completionHandler = { (task, error) -> Void in
DispatchQueue.main.async(execute: {
// Do something e.g. Alert a user for transfer completion.
// On failed uploads, `error` contains the error object.
})
}
let transferUtility = AWSS3TransferUtility.default()
transferUtility.uploadData(data, bucket: s3BucketName, key: remoteName, contentType: "image/"+data.format, expression: expression, completionHandler: completionHandler).continueWith { (task) -> Any? in
if let error = task.error {
print("Error : \(error.localizedDescription)")
}
if task.result != nil {
let url = AWSS3.default().configuration.endpoint.url
let publicURL = url?.appendingPathComponent(S3BucketName).appendingPathComponent(remoteName)
if let absoluteString = publicURL?.absoluteString {
// Set image with URL
print("Image URL : ",absoluteString)
}
}
return nil
}
}
For generating random strings for remote name.
func generateRandomStringWithLength(length: Int) -> String {
let randomString: NSMutableString = NSMutableString(capacity: length)
let letters: NSMutableString = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
var i: Int = 0
while i < length {
let randomIndex: Int = Int(arc4random_uniform(UInt32(letters.length)))
randomString.append("\(Character( UnicodeScalar( letters.character(at: randomIndex))!))")
i += 1
}
return String(randomString)
}
For resizing the image and data formatting. Use below Image and Data extensions.
extension UIImage {
func resizedImage(newSize: CGSize) -> UIImage {
guard self.size != newSize else { return self }
UIGraphicsBeginImageContextWithOptions(newSize, false, 0.0);
self.draw(in: CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height))
let newImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
return newImage
}
}
extension Data {
var format: String {
let array = [UInt8](self)
let ext: String
switch (array[0]) {
case 0xFF:
ext = "jpg"
case 0x89:
ext = "png"
case 0x47:
ext = "gif"
case 0x49, 0x4D :
ext = "tiff"
default:
ext = "unknown"
}
return ext
}
}

Answer 2

I Have modified your code, try this
let ext = "jpg"
let imageURL = NSBundle.mainBundle().URLForResource("imagename", withExtension: ext)
print("imageURL:\(imageURL)")
let uploadRequest = AWSS3TransferManagerUploadRequest()
uploadRequest.body = imageURL
uploadRequest.key = "\(NSProcessInfo.processInfo().globallyUniqueString).\(ext)"
uploadRequest.bucket = S3BucketName
uploadRequest.contentType = "image/\(ext)"
let transferManager = AWSS3TransferManager.defaultS3TransferManager()
transferManager.upload(uploadRequest).continueWithBlock { (task) -> AnyObject! in
if let error = task.error {
print("Upload failed ❌ (\(error))")
}
if let exception = task.exception {
print("Upload failed ❌ (\(exception))")
}
if task.result != nil {
let s3URL = NSURL(string: "http://s3.amazonaws.com/\(self.S3BucketName)/\(uploadRequest.key!)")!
print("Uploaded to:\n\(s3URL)")
}
else {
print("Unexpected empty result.")
}
return nil
}
or you can use my code below to upload to AWS s3, its worked fine for me. This code is written in swift 3.
func uploadButtonPressed(_ sender: AnyObject) {
if documentImageView.image == nil {
// Do something to wake up user :)
} else {
let image = documentImageView.image!
let fileManager = FileManager.default
let path = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString).appendingPathComponent("\(imageName!).jpeg")
let imageData = UIImageJPEGRepresentation(image, 0.99)
fileManager.createFile(atPath: path as String, contents: imageData, attributes: nil)
let fileUrl = NSURL(fileURLWithPath: path)
var uploadRequest = AWSS3TransferManagerUploadRequest()
uploadRequest?.bucket = "BucketName"
uploadRequest?.key = "key.jpeg"
uploadRequest?.contentType = "image/jpeg"
uploadRequest?.body = fileUrl as URL!
uploadRequest?.serverSideEncryption = AWSS3ServerSideEncryption.awsKms
uploadRequest?.uploadProgress = { (bytesSent, totalBytesSent, totalBytesExpectedToSend) -> Void in
DispatchQueue.main.async(execute: {
self.amountUploaded = totalBytesSent // To show the updating data status in label.
self.fileSize = totalBytesExpectedToSend
})
}
let transferManager = AWSS3TransferManager.default()
transferManager?.upload(uploadRequest).continue(with: AWSExecutor.mainThread(), withSuccessBlock: { (taskk: AWSTask) -> Any? in
if taskk.error != nil {
// Error.
} else {
// Do something with your result.
}
return nil
})
}
}
Thanks :)

Answer 3

We should use AWSS3TransferUtility now because AWSS3TransferManagerUploadRequest is deprecated, here is the jpeg upload function in Swift 4.2 but it can be easily changed for any data type:
func uploadS3(image: UIImage,
name: String,
progressHandler: #escaping (Progress) -> Void,
completionHandler: #escaping (Error?) -> Void) {
guard let data = UIImageJPEGRepresentation(image, Constants.uploadImageQuality) else {
DispatchQueue.main.async {
completionHandler(NetErrors.imageFormatError) // Replace your error
}
return
}
let credentialsProvider = AWSStaticCredentialsProvider(accessKey: Constants.accessKeyS3, secretKey: Constants.secretKeyS3)
let configuration = AWSServiceConfiguration(region: Constants.regionS3, credentialsProvider: credentialsProvider)
AWSServiceManager.default().defaultServiceConfiguration = configuration
let expression = AWSS3TransferUtilityUploadExpression()
expression.progressBlock = { task, progress in
DispatchQueue.main.async {
progressHandler(progress)
}
}
AWSS3TransferUtility.default().uploadData(
data,
bucket: Constants.bucketS3,
key: name,
contentType: "image/jpg",
expression: expression) { task, error in
DispatchQueue.main.async {
completionHandler(error)
}
print("Success")
}.continueWith { task -> AnyObject? in
if let error = task.error {
DispatchQueue.main.async {
completionHandler(error)
}
}
return nil
}
}
Do not forget to define or change Constants in the code. If you don't want to give public access, you should also define a user in IAM, and put this code in your bucket policy:
{
"Version": "2012-10-17",
"Id": "S3AccessPolicy",
"Statement": [
{
"Sid": "GiveAppAccess",
"Effect": "Allow",
"Principal": {
"AWS": "arn:aws:iam::123456789012:user/YOUR_USER"
},
"Action": [
"s3:GetObject",
"s3:PutObject"
],
"Resource": "arn:aws:s3:::YOUR_BUCKET/*"
}
]
}

Answer 4

This is the latest code based on SWIFT 4 syntax
I am using the code of #Karthick Selvaraj.
I think now its help to other developers to understand new syntax
func uploadButtonPressed() {
if myimageView.image == nil {
// Do something to wake up user :)
} else {
let image = myimageView.image!
let fileManager = FileManager.default
let path = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString).appendingPathComponent("test3.jpeg")
let imageData = UIImageJPEGRepresentation(image, 0)
fileManager.createFile(atPath: path as String, contents: imageData, attributes: nil)
let fileUrl = NSURL(fileURLWithPath: path)
let uploadRequest = AWSS3TransferManagerUploadRequest()
uploadRequest?.bucket = "<Your Bucket Name>"
uploadRequest?.key = "<Image Name>"
uploadRequest?.contentType = "image/jpeg"
uploadRequest?.body = fileUrl as URL!
uploadRequest?.serverSideEncryption = AWSS3ServerSideEncryption.awsKms
uploadRequest?.uploadProgress = { (bytesSent, totalBytesSent, totalBytesExpectedToSend) -> Void in
DispatchQueue.main.async(execute: {
// print("totalBytesSent",totalBytesSent)
// print("totalBytesExpectedToSend",totalBytesExpectedToSend)
// self.amountUploaded = totalBytesSent // To show the updating data status in label.
// self.fileSize = totalBytesExpectedToSend
})
}
let transferManager = AWSS3TransferManager.default()
transferManager.upload(uploadRequest!).continueWith(executor: AWSExecutor.mainThread(), block: { (task:AWSTask<AnyObject>) -> Any? in
if task.error != nil {
// Error.
print("error")
} else {
// Do something with your result.
print("No error Upload Done")
}
return nil
})
}
}
Enjoy !!!

Answer 5

This is image uploading using AWS S3 bucket this below code i implemented image uploading from gallery to uploading
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject])
{
if(picker.sourceType == UIImagePickerControllerSourceType.PhotoLibrary)
{
selectedImageUrl = info[UIImagePickerControllerReferenceURL] as! NSURL
myImageViewC.image = info[UIImagePickerControllerOriginalImage] as? UIImage
myImageViewC.backgroundColor = UIColor.clearColor()
myImageViewC.contentMode = UIViewContentMode.ScaleAspectFit
self.dismissViewControllerAnimated(true, completion: nil)
startUploadingImage()
}
else if(picker.sourceType == UIImagePickerControllerSourceType.Camera)
{
myImageViewC.image = info[UIImagePickerControllerOriginalImage] as? UIImage
myImageViewC.backgroundColor = UIColor.clearColor()
myImageViewC.contentMode = UIViewContentMode.ScaleAspectFit
self.dismissViewControllerAnimated(true, completion: nil)
myActivityIndicator.startAnimating()
let S3BucketName = "streetsmartb2/sai"
let date3 = NSDate()
let timeInMi = "\(CLongLong((floor(date3.timeIntervalSince1970 * 1000))))"
let S3UploadKeyName = "File.jpg\(timeInMi)"
//print("value1:\(S3UploadKeyName)")
//settings temp location for image
let imageName = NSURL.fileURLWithPath(NSTemporaryDirectory() + S3UploadKeyName).lastPathComponent
let documentDirectory = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first! as String
// getting local path
let localPath = (documentDirectory as NSString).stringByAppendingPathComponent(imageName!)
//getting actual image
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
//let data = UIImageJPEGRepresentation(image, 0.5)
let data = CreateTeamViewController().resizeImage(image)
data.writeToFile(localPath, atomically: true)
//let imageData = NSData(contentsOfFile: localPath)!
let photoURL = NSURL(fileURLWithPath: localPath)
let uploadRequest = AWSS3TransferManagerUploadRequest()
uploadRequest.body = photoURL
uploadRequest.key = S3UploadKeyName
uploadRequest.bucket = S3BucketName
uploadRequest.contentType = "image/jpeg"
let transferManager = AWSS3TransferManager.defaultS3TransferManager()
// Perform file upload
transferManager.upload(uploadRequest).continueWithBlock { (task) -> AnyObject! in
if let error = task.error {
print("Upload failed with error: (\(error.localizedDescription))")
dispatch_async(dispatch_get_main_queue()) {
// self.returnToAddView()
self.myActivityIndicator.stopAnimating()
CreateTeamViewController().displayAlertMessage("Error uploading Image")
}
}
if let exception = task.exception {
print("Upload failed with exception (\(exception))")
dispatch_async(dispatch_get_main_queue()) {
// self.returnToAddView()
self.myActivityIndicator.stopAnimating()
CreateTeamViewController().displayAlertMessage("Error uploading Image")
}
}
if task.result != nil {
// Remove locally stored file
self.remoteImageWithUrl(uploadRequest.key!)
let s3URL = NSURL(string: "https://s3.amazonaws.com/\(S3BucketName)/\(uploadRequest.key!)")!
// print("Uploaded to:\n\(s3URL)")
dispatch_async(dispatch_get_main_queue()) {
// self.returnToAddView()
self.myActivityIndicator.stopAnimating()
self.createTeamImageButton?.setImage(self.loadImage, forState: .Normal)
self.uploadedImageURL = (s3URL.URLString)
// self.teamImageNameCreate = self.uploadedImageURL
// self.createTeamImageButton.sd_setImageWithURL(NSURL(string: self.uploadedImageURL)!, forState: .Normal, placeholderImage: UIImage(named: "no_image_one.jpg"))
let url = NSURL.init(string: self.uploadedImageURL)
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) {
// do some task
let imagedata = NSData(contentsOfURL: url!)
if let imageObj = UIImage.init(data: imagedata!) {
self.createTeamPic = imageObj
}
dispatch_async(dispatch_get_main_queue()) {
self.createTeamImageButton?.setImage(self.createTeamPic, forState: .Normal)
}
}
}
}
else {
// print("Unexpected empty result.")
}
return nil
}
}
}