Configuring a Storage Quota for a Bucket (SDK for Node.js)
If you have any questions during development, post them on the Issues page of GitHub.
Function
A quota limits the maximum capacity allowed in a bucket. By default, there is no limit on the storage capacity of the entire OBS system or a single bucket, and any number of objects can be stored. You can set a storage quota to control the total size of objects that can be uploaded to the bucket. If the storage quota is reached, object upload will fail.
A quota limit does not apply to the objects uploaded before the quota is configured. If the specified quota is already smaller than the total size of existing objects in the bucket, the existing objects in the bucket will not be deleted, but no more object can be uploaded to the bucket later. In this case, you can upload new objects only by deleting some existing objects until the used space is less than the quota.
Restrictions
- A bucket storage quota must be a non-negative integer expressed in bytes. The maximum value is 263 – 1.
- OBS does not provide an API for deleting bucket storage quotas. You can set the bucket storage quota to 0 to cancel the limit.
- To configure a storage quota for a bucket, you must be the bucket owner or have the required permission (obs:bucket:PutBucketQuota in IAM or PutBucketQuota in a bucket policy). For details, see Introduction to OBS Access Control, IAM Custom Policies, and Creating a Custom Bucket Policy.
- To learn about the mappings between OBS regions and endpoints, see Regions and Endpoints.
Method
ObsClient.setBucketQuota(params)
Request Parameters
Parameter |
Type |
Mandatory (Yes/No) |
Description |
---|---|---|---|
Bucket |
string |
Yes |
Explanation: Bucket name. Restrictions:
Value range: The value can contain 3 to 63 characters. Default value: None |
StorageQuota |
number |
Yes |
Explanation: Bucket quota. Restrictions: None Value range: 0 to (263 – 1), in bytes Default value: 0, indicating that there is no limit on the bucket quota. |
Responses
Type |
Description |
---|---|
NOTE:
This API returns a Promise response, which requires the Promise or async/await syntax. |
Explanation: Returned results. For details, see Table 3. |
Parameter |
Type |
Description |
---|---|---|
CommonMsg |
Explanation: Common information generated after an API call is complete, including the HTTP status code and error code. For details, see Table 4. |
|
InterfaceResult |
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. |
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. |
Code Examples
You can call ObsClient.setBucketQuota to configure a storage quota for a bucket. This example sets the quota of bucket examplebucket to 1 GB.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 |
// 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/intl/en-us/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. CN-Hong Kong is used here in this example. Replace it with the one currently in use. server: "https://obs.ap-southeast-1.myhuaweicloud.com" }); async function setBucketQuota() { try { const params = { // Specify the bucket name. Bucket: "examplebucket", // Specify a quota of 1 GB (measured in bytes) for the bucket. StorageQuota: 1024 * 1024 * 1024 }; // Set the bucket quota. const result = await obsClient.setBucketQuota(params); if (result.CommonMsg.Status <= 300) { console.log("Get bucket(%s)'s quota 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("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); }; }; setBucketQuota(); |
- Use the StorageQuota parameter to specify the bucket quota.
- A bucket quota must be a non-negative integer expressed in bytes. The maximum value is 263 - 1.
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