Initializing option (SDK for C)

When the function of SDK for C is called, the option parameter must be passed. You can use function init_obs_options to initialize the option configuration, including the AK, SK, endpoint, bucket, timeout, and temporary authentication.

• Sample code for creating and initializing option using permanent access keys (AK/SK):

  // Create and initialize option.
  obs_options option;
  init_obs_options(&option);
  option.bucket_options.host_name = "<your-endpoint>";
  option.bucket_options.bucket_name = "<Your bucketname>";
  
  // 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 ACCESS_KEY_ID and SECRET_ACCESS_KEY.
  // Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
  option.bucket_options.access_key = getenv("ACCESS_KEY_ID");
  option.bucket_options.secret_access_key = getenv("SECRET_ACCESS_KEY");

• Sample code for creating and initializing option using temporary access keys (AK/SK and SecurityToken):

  // Create and initialize option.
  obs_options option;
  init_obs_options(&option);
  option.bucket_options.host_name = "<your-endpoint>";
  option.bucket_options.bucket_name = "<Your bucketname>";
  
  // 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 ACCESS_KEY_ID and SECRET_ACCESS_KEY.
  // Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
  option.bucket_options.access_key = getenv("ACCESS_KEY_ID");
  option.bucket_options.secret_access_key = getenv("SECRET_ACCESS_KEY");
  option.bucket_options.token = getenv("SecurityToken");

  

  • OBS is a global service. When obtaining temporary credentials, set the token scope to domain to make the token applicable to all projects and regions within an account.