Swift 2 By Example

Connecting the ASAP app

After implementing the ASAP server, let's add the capability of communicating with a server to our ASAP app.

The products

The first gateway to implement is the one that handles the product, implementing the ProductGateway protocol:

import Foundation class ServerProductGateway: ProductGateway { func getProducts(completion: (String) -> Void) { let session = NSURLSession.sharedSession() let task = session.dataTaskWithURL(EndPoint.Products.url()) { (data, response, error) -> Void in if error != nil { print(error!.localizedDescription) return } guard let data = data,let products = NSString(data: data,encoding: NSUTF8StringEncoding) as? String else { return } dispatch_async(dispatch_get_main_queue()) { completion(products) } } task.resume() ...