alamofireimage

I'm using Alamofire , AlamofireImage to cache images using ImageShack storage with Firebase backend. Sometimes memory comes over 100MB. I want to learn how to improve my image caching and well scaling before uploading. For example I have declared one common cache in class whole project using that AutoPurgingImageCache : let photoCache = AutoPurgingImageCache( memoryCapacity: 100 * 1024 * 1024, preferredMemoryUsageAfterPurge: 60 * 1024 * 1024 ) Is there any way to define these memoryCapacity , preferredMemoryUsageAfterPurge to save memory? What do they mean exactly? I'm using below Alamofire

How do we add an authentication header to the upload function of Alamofire 4.0? below is the sample code, however I see no way in adding a header to the function. Alamofire.upload( multipartFormData: { multipartFormData in multipartFormData.append(unicornImageURL, withName: "unicorn") multipartFormData.append(rainbowImageURL, withName: "rainbow") }, to: "https://httpbin.org/post", encodingCompletion: { encodingResult in switch encodingResult { case .success(let upload, _, _): upload.responseJSON { response in debugPrint(response) } case .failure(let encodingError): print(encodingError) } } )

I am stuck in uploading multiple images in multipart using Alamofire. Can any one help me? Thanks in advance!! For more details, I am using this code to create body part of images data: func imageArrayToNSData(array: [UIImage],boundary:String) -> NSData { let body = NSMutableData() var i = 0; for image in array{ let filename = "image\(i).jpg" let data = UIImageJPEGRepresentation(image,0.8); let mimetype = "image/jpeg" let key = "product_images" body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!) body.appendData("--\(boundary)\r\n".dataUsingEncoding

This question already has an answer here: How can I get the Data from NSURLSession.sharedSession().dataTaskWithRequest 2 answers I have a URL and want to download the image via a return function, however I cant get it to cooperate properly, here is my func: func getTabImage(url: URL) -> UIImage { Alamofire.request(url) .responseImage { response in if let image = response.result.value { return image } else { print("Failed to get image") } } } I pass in the URL, and want a UIImage returned from the alamofire response. But i get Unexpected non-void return value in void function for the return