class func showFeed(completion: @escaping ([Feed]) -> Swift.Void){
        let token =  UserDefaults.standard.string(forKey: "token")
        let params: [String: String] = ["user_token": token!]
        var feeds = [Feed]()
        Alamofire.request(Api.GetFeeds, method: .post, parameters: params).responseJSON { (response) in
            switch response.result{
            case .success(let data):
                let json = JSON(data)
                for index in 0...json.count-1 {
                    let aObject = json[index]
                    var type = FeedType.text

                    if(aObject["product_preview"]).exists(){
                        type = .product
                    }
                    var mood = ""
                    if aObject["mood"].exists(){
                        mood = aObject["mood"].string!
                    }

                    var images=[String]()
                    if aObject["file:wallphoto"].exists(){
                        type = .picture
                    }
                    let guid = aObject["guid"].string!
                    let owerId = aObject["owner_guid"].string!
                    let timestamp = aObject["time_created"].string!
                    let description = aObject["description"].string!
                    let desJson = JSON(parseJSON: description)

                    let text = desJson["post"].string!
                    var friendTagId = ""
                    if desJson["friend"].exists(){
                        friendTagId = desJson["friend"].string!
                    }
                    var location = ""
                    if desJson["location"].exists(){
                        location = desJson["location"].string!
                    }

                    let likes = aObject["likes"].string!
                    let comments = aObject["comments"].string!
                    print("[Feed] status", text)
                    var owner:User?
                    var friendTag:User?

                    User.info(forUserId: owerId, completion: { (user) in
                        owner = user
                        print("[Feed] info: ", owerId)
                        User.info(forUserId: friendTagId, completion: { (userTag) in
                            friendTag = userTag
                            print("[Feed] info tag: ", friendTagId)
                            let feed = Feed(id: Int(guid)!, owner: owner!, type: type, timestamp: Int(timestamp)!, text: text, tagFriend: friendTag!, location: location, mood: mood, images: images, likes: likes, comments: comments)
                            feeds.append(feed)
                            print("[Feed] count: ",feeds.count)
                        })

                    })

                }

                completion(feeds)

            case .failure(let error):
                print("Error: ", error)
            }
        }
    }