普通上传设置上传回调

功能说明

您可以在上传对象请求（PutObject）中设置回调参数，OBS在对象上传成功之后，将上传结果回调特定服务器，并将回调结果返回给您。

方法定义

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- (OBSBFTask*)putObject:(OBSPutObjectWithFileRequest *)request
         completionHandler:(void (^)(OBSPutObjectResponse *response, NSError *error))completionHandler;

请求参数说明

返回结果说明

代码示例

此示例用于普通上传对象（PutObject）时设置上传回调：

void testPutObjectWithCallback(){
//    NSString *endPoint = @"your-endpoint";
    // 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。
    // 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
    NSString* endPoint = @"https://obs.cn-north-4.myhuaweicloud.com";
    char* ak_env = getenv("AccessKeyID");
    char* sk_env = getenv("SecretAccessKey");
    char* securityToken_env = getenv("SecurityToken");
    NSString *AK = [NSString stringWithUTF8String:ak_env];
    NSString *SK = [NSString stringWithUTF8String:sk_env];
    NSString* securityToken = [NSString stringWithUTF8String:securityToken_env];
    NSString* exampleBucketName = @"example-bucket-name";
    NSString* exampleObjectKey = @"objectname.pic";
    NSString* exampleFile = [[NSBundle mainBundle]pathForResource:@"pic" ofType:@"jpeg"];//@"";
    NSString* exampleCallbackUrl = @"www.example-url.com";
    NSString* exampleCallbackBody = @"exampleCallbackBody";
    NSString* exampleCallbackHost = @"www.example-host.com";
    NSString* exampleCallbackBodyType = @"example-content-type";
    // 初始化身份验证
    OBSStaticCredentialProvider *credentialProvider = [[OBSStaticCredentialProvider alloc] initWithAccessKey:AK secretKey:SK];
    // 【可选】如果使用临时AKSK和SecurityToken访问OBS，需要指定securityToken值。
    // credentialProvider.securityToken = securityToken;
    // 初始化服务配置
    OBSServiceConfiguration *conf = [[OBSServiceConfiguration alloc] initWithURLString:endPoint credentialProvider:credentialProvider];
    // 初始化client
    OBSClient *client = [[OBSClient alloc] initWithConfiguration:conf];
    // 初始化上传对象请求putObjectRequest
    OBSPutObjectWithFileRequest * putObjectRequest = [[OBSPutObjectWithFileRequest alloc] initWithBucketName:exampleBucketName objectKey:exampleObjectKey uploadFilePath:exampleFile];
    putObjectRequest.callback = [[OBSCallback alloc] initWithUrl:exampleCallbackUrl
                                                        withBody:exampleCallbackBody
                                                    withBodyType:exampleCallbackBodyType
                                                        withHost:exampleCallbackHost];
    // 初始化上传对象异步任务
    OBSBFTask* putObjectTask = [client putObject:putObjectRequest completionHandler:^(OBSPutObjectResponse *response, NSError *error) {
        if(error){
            // 上传失败
            NSLog(@"PutObject failed:%@", error);
        }
        if(response){
            NSLog(@"PutObject response:%@", response);
            NSString* callbackResponseString = [[NSString alloc] initWithData:response.responseRawData
                                                                     encoding:NSUTF8StringEncoding];
            NSLog(@"PutObject callbackResponseString:%@", callbackResponseString);
        }
    }];
    // 等待上传对象异步任务完成
    [putObjectTask waitUntilFinished];
}