General Examples of ObsClient

If you have any questions during the development, post them on the Issues page of GitHub. For details about parameters and usage of each API, see the API Reference.

When you call an API using an instance of ObsClient, if no exception is thrown, the return value is valid, and a sub-class instance of ObsWebServiceResponse (SDK common response headers) is returned. If any exception is thrown, the operation failed, and you can obtain the exception details from the returned instance of ObsException. ObsClient supports synchronous and asynchronous API callings. Examples are as follows:

// Initialize configuration parameters.
ObsConfig config = new ObsConfig();
config.Endpoint = "https://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.
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// Create an instance of ObsClient.
ObsClient client = new ObsClient(accessKey, secretKey, config);

// Call the API for creating a bucket in synchronous mode.
try
{
    CreateBucketRequest request = new CreateBucketRequest
    {
        BucketName = "bucketname",
    };
    CreateBucketResponse response = client.CreateBucket(request);

    Console.WriteLine("Create bucket response: {0}", response.StatusCode);
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}

// Initialize configuration parameters.
ObsConfig config = new ObsConfig();
config.Endpoint = "https://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.
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// Create an instance of ObsClient.
ObsClient client = new ObsClient(accessKey, secretKey, config);

// Call the API for creating a bucket in asynchronous mode.
CreateBucketRequest request = new CreateBucketRequest
{
    BucketName = "bucketname",
};
client.BeginCreateBucket(request, delegate(IAsyncResult ar){
   try
   {
        CreateBucketResponse response = client.EndCreateBucket(ar);
        Console.WriteLine("Create bucket response: {0}", response.StatusCode);
    }
    catch (ObsException ex)
    {
        Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
        Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
    }
}, null);
Console.ReadKey();