This is an example of how to use Alamofire to upload an image to a server.

ImageUploader.swift

import Foundation
import Alamofire
import ModelRocket

class ImageUploader {

    static func uploadImage(image : UIImage,
                             parameters: [String: String]? = nil,
                             completionSuccess: (result: JSON) -> Void,
                             completionError: (error: NSError) -> Void) {
    
        let imageData = UIImageJPEGRepresentation(image, 0.5)
        
        Alamofire.upload(
            .POST,
            "http://URLHERE",
            headers: ["Authorization" : "Basic"],
            multipartFormData: { multipartFormData in
                multipartFormData.appendBodyPart(data: imageData!, name: "imagefile",
                    fileName: "image.jpg", mimeType: "image/jpeg")
            },
            encodingCompletion: { encodingResult in
                switch encodingResult {
                case .Success(let upload, _, _):
                    upload.validate()
                    upload.response{ request, response, data, error in
                        if (error != nil) {
                            completionError(error: error!)
                        }else{
                            completionSuccess(result:JSON(data: data!))
                        }
                    }
                case .Failure(let encodingError):
                    completionError(error: encodingError as NSError)
                }
            })
    }
}

//Usage:
//      ....
//      let image = self.imageView.image
//      WebServiceManager.uploadImage(image, completionSuccess: { (result) in
//            //Success
//        }) { (error) in
//            //Error
//        }
//      ....