An iOS sample to send a toast notification to an Windows 8 device.

RegistrationViewController.m

//
//  RegistrationController.m
//  iPhone
//
//  Created by xcode4 on 20/03/2012.
//  Copyright (c) 2012 WebileApps. All rights reserved.
//

#import "RegistrationController.h"
#import "ASIFormDataRequest.h"

@implementation RegistrationController

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
    [super viewDidLoad];
//    [self fetchAccessToken];
    [self sendPush];
    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [button addTarget:self action:@selector(sendPush) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:button];
    [button setTitle:@"Send Push" forState:UIControlStateNormal];
    button.frame = CGRectMake(100, 100, 120, 44);
}

- (void) fetchAccessToken {
    NSURL *registrationURL = [NSURL URLWithString:@"https://login.live.com/accesstoken.srf"];
    //    ASIFormDataRequest *registrationRequest = [[ASIFormDataRequest alloc] initWithURL:registrationURL];
    
    ASIHTTPRequest *registrationRequest = [[ASIHTTPRequest alloc] initWithURL:registrationURL];
    [registrationRequest addRequestHeader:@"Content-Type" value:@"application/x-www-form-urlencoded"]; 
    [registrationRequest setRequestMethod:@"POST"];
    NSString *postBody = @"grant_type=client_credentials&client_id=ms-app://s-1-15-2-2192266681-671918058-3069766759-3941978237-3589562082-3490105649-3234865011&client_secret=8FrewzBvCONvLNbSPDnPrgTq5cC3ydj3&scope=notify.windows.com";
    [registrationRequest appendPostData:[postBody dataUsingEncoding:NSASCIIStringEncoding]];

    //    [registrationRequest setPostValue:@"client_credentials" forKey:@"grant_type"];
//    [registrationRequest setPostValue:@"ms-app://s-1-15-2-2192266681-671918058-3069766759-3941978237-3589562082-3490105649-3234865011" forKey:@"client_id"];
//    [registrationRequest setPostValue:@"8FrewzBvCONvLNbSPDnPrgTq5cC3ydj3" forKey:@"client_secret"];
//    [registrationRequest setPostValue:@"notify.windows.com" forKey:@"scope"];    
    
    registrationRequest.delegate = self;
    [registrationRequest startAsynchronous];
}

-(void) sendPush {
    NSURL *notificationURL = [NSURL URLWithString:@"https://db3.notify.windows.com/?token=AQUAAAACOdUBkiMEPFmt0VqX%2fnLH9XTwtGdcZz7SlKfDJCVybPvR2GPRtgNeeB192P9icEKb5YyrwvCryLJvc%2bQVea%2fHqKxUixljU18aGZjdxZpHXGYUIL5GWjJj0ALwQeHsHsI%3d"];
    ASIHTTPRequest *notificationRequest = [[ASIHTTPRequest alloc] initWithURL:notificationURL];
    [notificationRequest setRequestMethod:@"POST"];
    [notificationRequest addRequestHeader:@"Content-Type" value:@"text/xml"];
    [notificationRequest addRequestHeader:@"Authorization" value:@"Bearer EgAeAQMAAAAEgAAACoAAx0ra9cDIpyvkNpqlCcx4LJ6thnmR/muqvSQMt54pLrZSg25gCEMEULbGkNcyfl35phHm6IQXceAu+JsnP3JzJSx4jbRTWdXto+DbizlGBk7mo+BqL7GFTnuI2npiry41HhKBJkNueFsoJXLENk7WRkJNeiUM4oQQjnW2rpz0MjmNAFoAjQAAAAAAIyoJSLoFdE+6BXRP60gEAA8AMTgzLjgyLjE3OS4yMTQAAAAAAF4AbXMtYXBwOi8vcy0xLTE1LTItMjE5MjI2NjY4MS02NzE5MTgwNTgtMzA2OTc2Njc1OS0zOTQxOTc4MjM3LTM1ODk1NjIwODItMzQ5MDEwNTY0OS0zMjM0ODY1MDExAA=="];
    [notificationRequest addRequestHeader:@"X-WNS-TYPE" value:@"wns/toast"];//"X-WNS-Type", "wns/tile"
//    [notificationRequest addRequestHeader:@"X-WNS-TYPE" value:@"wns/tile"];//"X-WNS-Type", "wns/tile"
    [notificationRequest addRequestHeader:@"Host" value:@"cloud.notify.windows.com"];
//    NSString *notificationXML = @"<tile><visual version='1' lang='en-US'><binding template='TileWideText03'><text id='1'>Hello World! My very own tile notification</text></binding><binding template='TileSquareText04'><text id='1'>Hello World! My very own tile notification</text></binding></visual></tile>";
  NSString *notificationXML = @"<toast><visual version='1' lang='en-US'><binding template='ToastText02'><text id='1'>Heading text</text><text id='2'>Body text that wraps.</text></binding></visual></toast>";
    [notificationRequest addRequestHeader:@"Content-Length" value:[NSString stringWithFormat:@"%d",notificationXML.length]];
    [notificationRequest addRequestHeader:@"X-WNS-RequestForStatus" value:@"true"];
    [notificationRequest appendPostData:[notificationXML dataUsingEncoding:NSASCIIStringEncoding]];
    notificationRequest.delegate = self;
    [notificationRequest startAsynchronous];
}

- (void)requestFinished:(ASIHTTPRequest *)request {
    NSLog(@"response: %d, %@", request.responseStatusCode, request.responseString);
    if(request.responseStatusCode == 200) {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Sent successfully" message:request.responseString delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
        [alert show];
        [alert release];
    }
}

- (void)requestFailed:(ASIHTTPRequest *)request {
    NSLog(@"response: %@", request.responseString);    
    NSLog(@"error: %@",[request.error.userInfo description]);
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Failed" message:[request.error.userInfo description] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
    [alert show];
    [alert release];
}

@end