Alamofire POST request with progress

Question

I\'m using Alamofire to do a POST request. As this POST request can take a while and I want to keep track of the progress and display it as a ProgressView.

A         


        

Answer 1

What you can do instead is first use the ParameterEncoding enum to generate the HTTPBody data. Then you can pull that data out and pass it off to the Alamofire upload method. Here's a modified version of your same function that compiles in a playground and instead uses the upload function.

struct ApiLink {
    static let create_post = "/my/path/for/create/post"
}

let parameters: [String: AnyObject] = ["key": "value"] // Make sure this has your image as well

let mutableURLRequest = NSMutableURLRequest(URL: NSURL(string: ApiLink.create_post)!)
mutableURLRequest.HTTPMethod = Method.POST.rawValue

let encodedURLRequest = ParameterEncoding.JSON.encode(mutableURLRequest, parameters: parameters).0
let data = encodedURLRequest.HTTPBody!

let progressView = UIProgressView()

Alamofire.upload(mutableURLRequest, data)
         .progress { _, totalBytesRead, totalBytesExpectedToRead in
             println("ENTER .PROGRESSS")
             println("\(totalBytesRead) of \(totalBytesExpectedToRead)")
             progressView.setProgress(Float(totalBytesRead) / Float(totalBytesExpectedToRead), animated: true)
         }
         .responseJSON { _, _, mydata, _ in
             println(mydata)
         }

This will certainly have progress updates as @mattt originally mentioned in his comment above.