Api2Example

    

    func initializeDatabase() {
        let request = NSMutableURLRequest(url: NSURL(string: "\(apiURL)/statistics/")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                          timeoutInterval: 10.0)
        request.httpMethod = "POST"
        request.allHTTPHeaderFields = headers
        
        let session = URLSession.shared
        let dataTask = session.dataTask(with: request as URLRequest, completionHandler: callback)
        
        dataTask.resume()
    }
    
    func addStatistic() {

        let body = ["url": databaseURL, "user_id": "1251252", "point": "faculty", "date": "06.04.2017"]
        
        var jsonBody: Data?
        
        do {
            jsonBody = try JSONSerialization.data(withJSONObject: body)
        } catch  {
        }
        
        let request = NSMutableURLRequest(url: NSURL(string: "\(apiURL)/statistics/add_statistics")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                          timeoutInterval: 10.0)
        request.httpMethod = "PUT"
        request.allHTTPHeaderFields = headers
        request.httpBody = jsonBody
        
        let session = URLSession.shared
        let dataTask = session.dataTask(with: request as URLRequest, completionHandler: callback)
        
        dataTask.resume()
    }
    
    func getStatistic() {
        let body = ["url": databaseURL, "user_id": "1251252"]
        var jsonBody: Data?
        do {
            jsonBody = try JSONSerialization.data(withJSONObject: body)
        } catch  {
        }
        let request = NSMutableURLRequest(url: NSURL(string: "\(apiURL)/statistics/get_statistics_general")! as URL,
                                          cachePolicy: .useProtocolCachePolicy,
                                          timeoutInterval: 10.0)
        request.httpMethod = "POST"
        request.allHTTPHeaderFields = headers
        request.httpBody = jsonBody
        
        let session = URLSession.shared
        let dataTask = session.dataTask(with: request as URLRequest, completionHandler: callback)
        dataTask.resume()
    }
    
    func callback(_ data: Data?, _ resp: URLResponse?, _ error: Error?) {
        printResponse(resp, error: error)
        parseResponse(data)
    }
    
    func parseResponse(_ data: Data?) {
        if let jsonData = data {
            do {
                let json = try JSONSerialization.jsonObject(with: jsonData) as? Dictionary<String, Any>
                print(json ?? "json is nil")
            } catch let error{
                print(error)
            }
        }
    }
    
    func printResponse(_ response: URLResponse?, error: Error?)  {
        if (error != nil) {
            print(error!)
        } else {
            let httpResponse = response as? HTTPURLResponse
            print(httpResponse ?? "response is nil")
        }
    }