Using Sync Server Basics

SYNViewController.m

//
//  SYNViewController.h
//  syncserver-ios-test
//

#import <UIKit/UIKit.h>

@interface SYNViewController : UIViewController 
@end

//----------------------------------------------

//
//  SYNViewController.m
//  syncserver-ios-test
//

#import "SYNViewController.h"

#import <Syncano.h>
#import <SyncanoSyncServer.h>

@interface SYNViewController ()<SyncanoSyncServerDelegate>

@property (strong, nonatomic) SyncanoSyncServer *syncServer;
@property (strong, nonatomic) UILabel *label;

@end

@implementation SYNViewController

- (void)viewDidLoad {
  [super viewDidLoad];

  self.syncServer = [SyncanoSyncServer syncanoSyncServerForDomain:@"YOUR-DOMAIN" apiKey:@"YOUR-API-KEY"];
  self.syncServer.delegate = self;
  NSError *error = nil;
  [self.syncServer connect:&error];
  
  self.label = [[UILabel alloc] initWithFrame:CGRectMake(0, 50, CGRectGetWidth(self.view.bounds), 50)];
  self.label.textAlignment = NSTextAlignmentCenter;
  [self.view addSubview:self.label];
}

- (void)didReceiveMemoryWarning {
  [super didReceiveMemoryWarning];
}

- (void)syncServerConnectionOpened:(SyncanoSyncServer *)syncServer {
  NSLog(@"Sync Server Connection opened");
	
  //Use your own projectId and collectionId values
  SyncanoParameters_Subscriptions_SubscribeCollection *params = [[SyncanoParameters_Subscriptions_SubscribeCollection alloc] initWithProjectId:@"12345" collectionId:@"678910" context:@"connection"];
  [self.syncServer sendRequest:params callback: ^(SyncanoResponse *response) {
    NSLog(@"Subscription response: %@", response);
  }];
}

- (void)syncServer:(SyncanoSyncServer *)syncServer connectionClosedWithError:(NSError *)error {
  NSLog(@"Sync Server Error: %@", error);
}

- (void)syncServer:(SyncanoSyncServer *)syncServer notificationAdded:(SyncanoData *)addedData {
  NSLog(@"Added data: %@", addedData);
  dispatch_async(dispatch_get_main_queue(), ^{
    self.label.text = addedData.title;
  });
}

@end