Help Center/ Object Storage Service/ SDK Reference/ Node.js/ Bucket CORS (SDK for Node.js)/ Deleting the CORS Configuration of a Bucket (SDK for Node.js)
Updated on 2024-11-13 GMT+08:00

Deleting the CORS Configuration of a Bucket (SDK for Node.js)

If you have any questions during development, post them on the Issues page of GitHub.

Function

Cross-origin resource sharing (CORS) is a mechanism defined by the World Wide Web Consortium (W3C) that allows a web application program in one domain to access resources located in another one. For normal web page requests, website scripts and contents in one domain cannot interact with those in another because of Same Origin Policies (SOPs). OBS supports CORS rules that allow the resources in OBS to be requested by other domains.

This API deletes the CORS rules of a bucket.

Restrictions

Method

ObsClient.deleteBucketCors(params)

Request Parameters

Table 1 BucketRequestInput

Parameter

Type

Mandatory (Yes/No)

Description

Bucket

string

Yes

Explanation:

Bucket name.

Restrictions:

  • A bucket name must be unique across all accounts and regions.
  • A bucket name:
    • Must be 3 to 63 characters long and start with a digit or letter. Lowercase letters, digits, hyphens (-), and periods (.) are allowed.
    • Cannot be formatted as an IP address.
    • Cannot start or end with a hyphen (-) or period (.).
    • Cannot contain two consecutive periods (..), for example, my..bucket.
    • Cannot contain a period (.) and a hyphen (-) adjacent to each other, for example, my-.bucket or my.-bucket.
  • If you repeatedly create buckets with the same name in the same region, no error will be reported, and the bucket attributes comply with those set in the first creation request.

Value range:

The value can contain 3 to 63 characters.

Default value:

None

Responses

Table 2 Responses

Type

Description

Table 3

NOTE:

This API returns a Promise response, which requires the Promise or async/await syntax.

Explanation:

Returned results. For details, see Table 3.

Table 3 Response

Parameter

Type

Description

CommonMsg

ICommonMsg

Explanation:

Common information generated after an API call is complete, including the HTTP status code and error code. For details, see Table 4.

InterfaceResult

Table 5

Explanation:

Results outputted for a successful call. For details, see Table 5.

Restrictions:

This parameter is not included if the value of Status is greater than 300.

Table 4 ICommonMsg

Parameter

Type

Description

Status

number

Explanation:

HTTP status code returned by the OBS server.

Value range:

A status code is a group of digits indicating the status of a response. It ranges from 2xx (indicating successes) to 4xx or 5xx (indicating errors). For details, see Status Codes.

Code

string

Explanation:

Error code returned by the OBS server.

Message

string

Explanation:

Error description returned by the OBS server.

HostId

string

Explanation:

Request server ID returned by the OBS server.

RequestId

string

Explanation:

Request ID returned by the OBS server.

Id2

string

Explanation:

Request ID2 returned by the OBS server.

Indicator

string

Explanation:

Error code details returned by the OBS server.

Table 5 BaseResponseOutput

Parameter

Type

Description

RequestId

string

Explanation:

Request ID returned by the OBS server

Code Examples

Sample code is as follows:

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// Import the OBS library.
// Use npm to install the client.
const ObsClient = require("esdk-obs-nodejs");
// Use the source code to install the client.
// var ObsClient = require('./lib/obs');

// Create an instance of ObsClient.
const obsClient = new ObsClient({
  // Obtain an AK/SK pair using environment variables or import an AK/SK pair in other ways. Using hard coding may result in leakage.
  // Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
  access_key_id: process.env.ACCESS_KEY_ID,
  secret_access_key: process.env.SECRET_ACCESS_KEY,
  // (Optional) If you use a temporary AK/SK pair and a security token to access OBS, you are advised not to use hard coding, which may result in information leakage. You can obtain an AK/SK pair using environment variables or import an AK/SK pair in other ways.
  // security_token: process.env.SECURITY_TOKEN,
  // Enter the endpoint corresponding to the region where the bucket is located. EU-Dublin is used here in this example. Replace it with the one currently in use.
  server: "https://obs.eu-west-101.myhuaweicloud.eu"
});

async function deleteBucketCors() {
  try {
    const params = {
      // Specify the bucket name.
      Bucket: "examplebucket"
    };
    // Delete CORS rules of the bucket.
    const result = await obsClient.DeleteBucketCors(params);
    if (result.CommonMsg.Status <= 300) {
      console.log("Delete bucket(%s)'s CORS configuration successful!", params.Bucket);
      console.log("RequestId: %s", result.CommonMsg.RequestId);
      return;
    };

    console.log("An ObsError was found, which means your request sent to OBS was rejected with an error response.");
    console.log("Status: %d", result.CommonMsg.Status);
    console.log("Code: %s", result.CommonMsg.Code);
    console.log("Message: %s", result.CommonMsg.Message);
    console.log("RequestId: %s", result.CommonMsg.RequestId);
  } catch (error) {
    console.log("Delete bucket(%s)'s CORS configuration successful!", params.Bucket);
    console.log("An Exception was found, which means the client encountered an internal problem when attempting to communicate with OBS, for example, the client was unable to access the network.");
    console.log(error);
  };
};

deleteBucketCors();