Viewing CORS Rules

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.

You can call ObsClient.GetBucketCors to view CORS rules of a bucket.

This example views the CORS rule of bucket bucketname.

The example code is 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);
// View CORS rules.
try
{

    GetBucketCorsRequest request = new GetBucketCorsRequest();
    request.BucketName = "bucketname";
    GetBucketCorsResponse response = client.GetBucketCors(request);
    foreach (CorsRule rule in response.Configuration.Rules)
    {
        Console.WriteLine("rule id is: {0}\n", rule.Id);
        foreach (string allowOrigin in rule.AllowedOrigins)
        {
            Console.WriteLine("allowOrigin is: {0}\n", allowOrigin);
        }
        foreach (string allowHeader in rule.AllowedHeaders)
        {
            Console.WriteLine("allowHeader is: {0}\n", allowHeader);
        }
        foreach (HttpVerb allowMethod in rule.AllowedMethods)
        {
            Console.WriteLine("allowMethod is: {0}\n", allowMethod);
        }
        foreach (string exposeHeader in rule.ExposeHeaders)
        {
            Console.WriteLine("exposeHeader is: {0}\n", exposeHeader);
        }
        Console.WriteLine("rule maxAgeSeconds is: {0}\n", rule.MaxAgeSeconds);

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

• To handle the error codes possibly returned during the operation, see OBS Server-Side Error Codes.