AWSS3Util.swift

class AWSS3Util: NSObject {

  class func uploadFileAtURL(fileURL: NSURL,
    fileName: String,
    progessCallBack: AWSNetworkingUploadProgressBlock?,
    responseCallBack: (error: NSError?) -> Void ) {
    
      let uploadRequest = AWSS3TransferManagerUploadRequest()
      uploadRequest.body = fileURL
      uploadRequest.key = fileName
      uploadRequest.bucket = Setting.BUCKET
      uploadRequest.ACL = AWSS3ObjectCannedACL.PublicRead
    
      if progessCallBack != nil {
        uploadRequest.uploadProgress = progessCallBack
      }
    
      let transferManager = AWSS3TransferManager.defaultS3TransferManager()
      transferManager.upload(uploadRequest).continueWithBlock { (task) -> AnyObject? in
        
        if let error = task.error {
          print("Error occurred: \(error)")
          dispatch_async(dispatch_get_main_queue(), {
            responseCallBack(error: error)
          })
          return nil
        }
        
        dispatch_async(dispatch_get_main_queue(), {
          responseCallBack(error: nil)
        })
        return nil
      }
  }
  
  class func downloadFileWithFileName(fileName: String,
    downloadedLocationURL: NSURL,
    progessCallBack: AWSNetworkingUploadProgressBlock?,
    responseCallBack: (error: NSError?) -> Void ) {
    
      let downloadRequest = AWSS3TransferManagerDownloadRequest()
      downloadRequest.key = fileName
      downloadRequest.bucket = Setting.BUCKET
      downloadRequest.downloadingFileURL = downloadedLocationURL
      
      if progessCallBack != nil {
        downloadRequest.uploadProgress = progessCallBack
      }
      
      let transferManager = AWSS3TransferManager.defaultS3TransferManager()
      transferManager.download(downloadRequest).continueWithBlock { (task) -> AnyObject? in
        
        if let error = task.error {
          print("Error occurred: \(error)")
          dispatch_async(dispatch_get_main_queue(), {
            responseCallBack(error: error)
          })
          return nil
        }
        
        dispatch_async(dispatch_get_main_queue(), {
          responseCallBack(error: nil)
        })
        return nil
      }
  }
  
  class func deleteFileWithFileName(fileName: String, callback: (error: NSError?) -> Void) {
    let deleteRequest = AWSS3DeleteObjectRequest()
    deleteRequest.bucket = Setting.BUCKET
    deleteRequest.key = fileName
    
    let s3 = AWSS3.defaultS3()
    s3.deleteObject(
      deleteRequest) { (deleteObjectOutput, error) in
        callback(error: error)
    }
  }
}