AWSSNSENDPOINT.m

    // ARN Endpoint
    // For Amazon SNS
    NSString *myARN = @"arn:aws:sns:ap-southeast-1:570761336625:app/APNS_SANDBOX/Airportthai";
    
    AWSSNSCreatePlatformEndpointInput *platformEndpointRequest = [AWSSNSCreatePlatformEndpointInput new];

    [platformEndpointRequest setCustomUserData:@"custom user data เช่นระบบ iOS version, Device Version อะไรก็ได้"];
    [platformEndpointRequest setToken:[self deviceTokenAsString:deviceToken]]; //แปลง device token ให้เป็น string ก่อนนะ
    [platformEndpointRequest setPlatformApplicationArn:myARN];
    
    AWSSNS *snsManager = [AWSSNS defaultSNS];
    [snsManager createPlatformEndpoint:platformEndpointRequest completionHandler:^(AWSSNSCreateEndpointResponse * _Nullable response, NSError * _Nullable error) {
        if (error != nil) {
            NSLog(@"AWSSNS Error: %@", error);
        } else {
            NSLog(@"AWSSNS endpoint ARN: %@", response.endpointArn);
            //TODO: Subcript to topic
            AWSSNSSubscribeInput *subscribeRequest = [AWSSNSSubscribeInput new];
            [subscribeRequest setEndpoint:response.endpointArn];
            [subscribeRequest setProtocols:@"application"];
            [subscribeRequest setTopicArn:@"arn:aws:sns:ap-southeast-1:570761336625:AOT-Promotion"];
            
            [snsManager subscribe:subscribeRequest completionHandler:^(AWSSNSSubscribeResponse * _Nullable response, NSError * _Nullable error) {
                if (error != nil) {
                    NSLog(@"AWSSNS Subscribe Error: %@", error);
                } else {
                    NSLog(@"AWSSNS Subscribe Success: %@", response);
                }
            }];
        }
    }];