Creating an Instance of OBSClient

OBSClient functions as the iOS client for accessing OBS. It offers users a series of APIs for interaction with OBS and is used for managing and operating resources, such as buckets and objects, stored in OBS. To use OBS iOS SDK to send a request to OBS, you need to initialize an instance of OBSClient and modify the default configurations in OBSServiceConfiguration based on actual needs.

Sample code for creating an instance of OBSClient using permanent access keys (AK/SK):

NSString *endPoint = @"your-endpoint";
// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running 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");
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.
OBSClient *client  = [[OBSClient alloc] initWithConfiguration:conf];

Sample code for creating an instance of OBSClient using temporary access keys (AK/SK and security token):

NSString *endPoint = @"your-endpoint";
// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running 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");
NSString *AK = [NSString stringWithUTF8String:ak_env];
NSString *SK = [NSString stringWithUTF8String:sk_env];

// Initialize identity authentication.
OBSStaticCredentialProvider *credentialProvider = [[OBSStaticCredentialProvider alloc] initWithAccessKey:AK secretKey:SK];
// securityToken
char* securityToken_env = getenv("SecurityToken");
NSString *SecurityToken = [NSString stringWithUTF8String:securityToken_env];
credentialProvider.securityToken = SecurityToken;

// Initialize service configuration.
OBSServiceConfiguration *conf = [[OBSServiceConfiguration alloc] initWithURLString:endPoint credentialProvider:credentialProvider];

// Initialize an instance of OBSClient.
OBSClient *client  = [[OBSClient alloc] initWithConfiguration:conf];

Currently, when multiple resumable upload tasks need to be executed concurrently, an independent instance of OBSClient needs to be initialized for each upload task to process requests.