Object Storage Service:Create a bucket (Node.js SDK)

Notes

• In this topic, the public endpoint of the China (Hangzhou) region is used. To access OSS from other Alibaba Cloud services in the same region, use an internal endpoint. For details about supported regions and endpoints, see Regions and endpoints.

• From 10:00 (UTC+8) on October 13, 2025, OSS will implement a phased adjustment across all regions to enable Block public access by default for new buckets created using the API, OSS SDKs, or ossutil. For details about the exact times when the adjustment will take effect in each region, see [Official Announcement] Adjustment to Public Access Blocking Configurations for Newly Created Buckets. Once Block Public Access is enabled, you cannot configure public access permissions, including public ACLs (public read and public read/write) and bucket policies that allows public access. You can disable this feature after the bucket is created if your business requires public access.

Permissions

By default, an Alibaba Cloud account has full permissions. RAM users or RAM roles under an Alibaba Cloud account do not have any permissions by default. The Alibaba Cloud account or account administrator must grant operation permissions through RAM Policy or Bucket policies.

Sample code

The following code provides an example of how to create a bucket named examplebucket.

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the region to oss-cn-hangzhou.
  region: 'yourregion',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured.
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  authorizationV4: true,
  // Specify the bucket name.
  bucket: 'yourBucketName',
});

// Create a bucket.
async function putBucket() {
  try {
    const options = {
      storageClass: 'Standard', // The default storage class of the bucket is Standard. To set the storage class to Archive, replace Standard with Archive.
      acl: 'private', // The default access control list (ACL) of the bucket is private. To set the ACL to public-read, replace private with public-read.
      dataRedundancyType: 'LRS' // The default data disaster recovery type of the bucket is locally redundant storage (LRS). To set the data disaster recovery type to zone-redundant storage (ZRS), replace LRS with ZRS.
    }
    // Specify the bucket name.
    const result = await client.putBucket('examplebucket', options);
    console.log(result);
  } catch (err) {
    console.log(err);
  }
}

putBucket();        

References

For more information about the API operation to create a bucket, see PutBucket.