Simple IOS APNs Test project with SNS integration.

1. Create a new project in XCode.

   1. Choose Single View Application.
   2. Enter APNSSampleApp for Product Name.
   3. Enter com.example for Organization Identifier.
   4. Leave Language to Objective-C.

2. Replace AppDelegate.m file content with the following:

    
   //
   //  AppDelegate.m
   //  APNSSampleApp
   //
   //
   
   #import "AppDelegate.h"
   
   @interface AppDelegate ()
   
   @end
   
   @implementation AppDelegate
   
   
   - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
       // Override point for customization after application launch.
       
       // Register for push rotifications
       if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {
           [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
           [[UIApplication sharedApplication] registerForRemoteNotifications];
       } else {
           [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
            (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
       }
       
       return YES;
   }
   
   - (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
       NSString * deviceTokenString = [[[[deviceToken description]
                                         stringByReplacingOccurrencesOfString: @"<" withString: @""]
                                        stringByReplacingOccurrencesOfString: @">" withString: @""]
                                       stringByReplacingOccurrencesOfString: @" " withString: @""];
       NSLog(@"Successfully registered for push notifications.");
       NSLog(@"Device token: %@", deviceTokenString);
   }
   
   - (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error {
       NSLog(@"Failed to register for push notifications.");
       NSLog(@"%@, %@", error, error.localizedDescription);
   }
   
   -(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
       application.applicationIconBadgeNumber = 0;
       
       if (application.applicationState == UIApplicationStateActive) {
           NSString *title = [[userInfo objectForKey:@"aps"] objectForKey:@"title"];
           NSString *alert = [[userInfo objectForKey:@"aps"] objectForKey:@"alert"];
           UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:title message:alert delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
           
           [alertView show];
       }    
   }
   
   - (void)applicationWillResignActive:(UIApplication *)application {
       
   }
   
   - (void)applicationDidEnterBackground:(UIApplication *)application {
       
   }
   
   - (void)applicationWillEnterForeground:(UIApplication *)application {
       
   }
   
   - (void)applicationDidBecomeActive:(UIApplication *)application {
       
   }
   
   - (void)applicationWillTerminate:(UIApplication *)application {
       
   }
   
   @end

1. Open iTunes Connect by visiting here.
2. Add a new App ID:
   1. Name: APNSSampleApp.
   2. Bundle ID: com.example.APNSSampleApp.
   3. Enable Services: Push Notifications.
   4. Continue -> Submit -> Done.
3. Click newly added App Id APNSSampleApp.
4. Click Edit.
5. For Push Notifications under Development SSL Certificate click Create Certificate.
6. Click Continue to get to Upload CSR page.
7. Generate a new CSR using Keychain:
   1. Open Keychain Access.
   2. From Keychain Access menu -> Certificate Assistant sub menu click Request a Certificate From a Certificate Authority...
   3. Enter your email address, APNSSampleApp Development in the Common Name field.
   4. Select Saved to disk option.
   5. Click Continue and Save.
8. Back in upload CSR page in iTunes Connect click Choose file, select the saved CSR and upload.
9. Click Generate button.
10. After certificate is generated click Download button to download.
11. Save it as APNSSampleAppDevelopment.cer.
12. Double click APNSSampleAppDevelopment.cer to add to Keychain.
13. Right click the added certificate in Keychain and click Export.
14. Save as APNSSampleAppDevelopment.p12.
15. DO NOT ENTER A PASSWORD when prompted to secure the exported certificate.
16. Back in iTunes Connect under Provisioning Profiles click Development.
17. Add a new Provisioning profile to allow the app installed on your development device:
    1. Under Development choose iOS App Development.
    2. Click Continue.
    3. Select APNSSampleApp from App ID drop down menu and click Continue.
    4. Select your certificate and click Continue.
    5. Select your device from the list and click Continue.
    6. Enter APNSSampleApp in the Profile Name: field.
    7. Click Generate and Download.
    8. Open the downloaded provisioning profile to add to xCode.
    9. Open project setting tab General in Xcode, deselecte Automatically manage signing if it is selected
    10. Select the provisioning profile added in step 8 for Signing (Debug)
18. In xCode click on Project name APNSSampleApp then click Capabilities tab.
19. Switch On Push Notifications.

1. Run the app in xCode and select your device as the target to run on.
2. Tap OK to allow push notifications as the application starts. Notifications can also be turned On from device settings -> notifications.
3. As the application starts it will register with Apple and will log device token in xCode console which we will need for sending notification to the device.

Advantage of using SNS is scalability which is required when publishing tens of millions of notifications in a very short time and abstracts interaction with different push services behind a unified API.

1. Create a new platform application in SNS console -> Side Menu - Mobile - Push notifications.

2. Enter APNSSampleApp for the name.

3. Select Apple iOS/VoIP/Mac from the Push notification platform drop down menu.

4. Select Used for development in sandbox as the generated certificate is for development

5. Select iOS push certificate from the Push certificate type drop down menu.

6. Click Choose file button.

7. Select APNSSampleAppDevelopment.p12 file that we exported from Keychain.

8. Click Load Credentials from File to populate Certificate and Private Key boxes.

9. Click Create platform application button.

10. Click on the new application name to enter.

11. Click Create application endpoint button.

12. Paste your Device Token in the Device token field.

13. Enter optional data in User Data field.

14. Click Create application endpoint button.

15. Select the newly added endpoint from the list.

16. Click Publish message button.

17. Enter the following in the Message body to send to the endpoint box and click Publish message button.

    {
    "APNS_SANDBOX":"{\"aps\":{\"alert\":\"Test message from SNS console.\", \"title\": \"APNSSampleApp\"}}"
    }