Configuring Event Notification

You can call setBucketNotification to set event notification for a bucket. Sample code is as follows:

static OBSClient *client;
NSString *endPoint = @"https://your-endpoint";
// Hard-coded or plaintext AK and SK are risky. For security purposes, encrypt your AK and SK before storing them in the configuration file or environment variables. In this example, the AK and SK are stored in environment variables. Before running the code in this example, configure environment variables AccessKeyID and SecretAccessKey.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
char* ak_env = getenv("AccessKeyID");
char* sk_env = getenv("SecretAccessKey");
if (ak_env == NULL || sk_env == NULL) {
    NSLog(@"Error: AccessKeyID or SecretAccessKey environment variable not set");
    return;
}
NSString *AK = [NSString stringWithUTF8String:ak_env];
NSString *SK = [NSString stringWithUTF8String:sk_env];
    
// Initialize identity authentication.
OBSStaticCredentialProvider *credentialProvider = [[OBSStaticCredentialProvider alloc] initWithAccessKey:AK secretKey:SK];
    
//Initialize service configuration.
OBSServiceConfiguration *conf = [[OBSServiceConfiguration alloc] initWithURLString:endPoint credentialProvider:credentialProvider];
    
// Initialize an instance of OBSClient.
client = [[OBSClient alloc] initWithConfiguration:conf];
    
// Configure event notification.
OBSSetBucketNotificationRequest *request = [[OBSSetBucketNotificationRequest alloc]initWithBucketName:@"bucketname" ];
    
OBSNotificationFilter *filter = [OBSNotificationFilter new];
    
OBSNotificationFilterRule *rule1 = [[OBSNotificationFilterRule alloc] initWithName:@"prefix" value:@"smn/"];
OBSNotificationFilterRule *rule2 = [[OBSNotificationFilterRule alloc] initWithName:@"suffix" value:@".jpg"];
[filter.filterRuleList addObject:rule1];
[filter.filterRuleList addObject:rule2];
    
OBSNotificationTopicConfiguration *topicConf = [OBSNotificationTopicConfiguration new];
topicConf.topic = [NSString stringWithFormat:@"urn:smn:%@:%@:topic001",@"region",@"ownerID"] ;
topicConf.ID = @"Id001";
topicConf.filter = filter;
[topicConf.eventList addObject:@"Your Event Type"];

[request.configurationList addObject:topicConf];
    
[client setBucketNotification:request completionHandler:^(OBSSetBucketNotificationResponse *response, NSError *error){
    NSLog(@"%@",response);
}];