Pilih preferensi cookie Anda

Kami menggunakan cookie penting serta alat serupa yang diperlukan untuk menyediakan situs dan layanan. Kami menggunakan cookie performa untuk mengumpulkan statistik anonim sehingga kami dapat memahami cara pelanggan menggunakan situs dan melakukan perbaikan. Cookie penting tidak dapat dinonaktifkan, tetapi Anda dapat mengklik “Kustom” atau “Tolak” untuk menolak cookie performa.

Jika Anda setuju, AWS dan pihak ketiga yang disetujui juga akan menggunakan cookie untuk menyediakan fitur situs yang berguna, mengingat preferensi Anda, dan menampilkan konten yang relevan, termasuk iklan yang relevan. Untuk menerima atau menolak semua cookie yang tidak penting, klik “Terima” atau “Tolak”. Untuk membuat pilihan yang lebih detail, klik “Kustomisasi”.

Use HeadBucket with an AWS SDK or CLI

Mode fokus
Use HeadBucket with an AWS SDK or CLI - Amazon Simple Storage Service
Halaman ini belum diterjemahkan ke dalam bahasa Anda. Minta terjemahan

The following code examples show how to use HeadBucket.

Bash
AWS CLI with Bash script
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

############################################################################### # function bucket_exists # # This function checks to see if the specified bucket already exists. # # Parameters: # $1 - The name of the bucket to check. # # Returns: # 0 - If the bucket already exists. # 1 - If the bucket doesn't exist. ############################################################################### function bucket_exists() { local bucket_name bucket_name=$1 # Check whether the bucket already exists. # We suppress all output - we're interested only in the return code. if aws s3api head-bucket \ --bucket "$bucket_name" \ >/dev/null 2>&1; then return 0 # 0 in Bash script means true. else return 1 # 1 in Bash script means false. fi }
  • For API details, see HeadBucket in AWS CLI Command Reference.

CLI
AWS CLI

The following command verifies access to a bucket named amzn-s3-demo-bucket:

aws s3api head-bucket --bucket amzn-s3-demo-bucket

If the bucket exists and you have access to it, no output is returned. Otherwise, an error message will be shown. For example:

A client error (404) occurred when calling the HeadBucket operation: Not Found
  • For API details, see HeadBucket in AWS CLI Command Reference.

Go
SDK for Go V2
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

import ( "bytes" "context" "errors" "fmt" "io" "log" "os" "time" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/feature/s3/manager" "github.com/aws/aws-sdk-go-v2/service/s3" "github.com/aws/aws-sdk-go-v2/service/s3/types" "github.com/aws/smithy-go" ) // BucketBasics encapsulates the Amazon Simple Storage Service (Amazon S3) actions // used in the examples. // It contains S3Client, an Amazon S3 service client that is used to perform bucket // and object actions. type BucketBasics struct { S3Client *s3.Client } // BucketExists checks whether a bucket exists in the current account. func (basics BucketBasics) BucketExists(ctx context.Context, bucketName string) (bool, error) { _, err := basics.S3Client.HeadBucket(ctx, &s3.HeadBucketInput{ Bucket: aws.String(bucketName), }) exists := true if err != nil { var apiError smithy.APIError if errors.As(err, &apiError) { switch apiError.(type) { case *types.NotFound: log.Printf("Bucket %v is available.\n", bucketName) exists = false err = nil default: log.Printf("Either you don't have access to bucket %v or another error occurred. "+ "Here's what happened: %v\n", bucketName, err) } } } else { log.Printf("Bucket %v exists and you already own it.", bucketName) } return exists, err }
  • For API details, see HeadBucket in AWS SDK for Go API Reference.

Python
SDK for Python (Boto3)
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

class BucketWrapper: """Encapsulates S3 bucket actions.""" def __init__(self, bucket): """ :param bucket: A Boto3 Bucket resource. This is a high-level resource in Boto3 that wraps bucket actions in a class-like structure. """ self.bucket = bucket self.name = bucket.name def exists(self): """ Determine whether the bucket exists and you have access to it. :return: True when the bucket exists; otherwise, False. """ try: self.bucket.meta.client.head_bucket(Bucket=self.bucket.name) logger.info("Bucket %s exists.", self.bucket.name) exists = True except ClientError: logger.warning( "Bucket %s doesn't exist or you don't have access to it.", self.bucket.name, ) exists = False return exists
  • For API details, see HeadBucket in AWS SDK for Python (Boto3) API Reference.

AWS CLI with Bash script
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

############################################################################### # function bucket_exists # # This function checks to see if the specified bucket already exists. # # Parameters: # $1 - The name of the bucket to check. # # Returns: # 0 - If the bucket already exists. # 1 - If the bucket doesn't exist. ############################################################################### function bucket_exists() { local bucket_name bucket_name=$1 # Check whether the bucket already exists. # We suppress all output - we're interested only in the return code. if aws s3api head-bucket \ --bucket "$bucket_name" \ >/dev/null 2>&1; then return 0 # 0 in Bash script means true. else return 1 # 1 in Bash script means false. fi }
  • For API details, see HeadBucket in AWS CLI Command Reference.

For a complete list of AWS SDK developer guides and code examples, see Developing with Amazon S3 using the AWS SDKs. This topic also includes information about getting started and details about previous SDK versions.

PrivasiSyarat situsPreferensi cookie
© 2025, Amazon Web Services, Inc. atau afiliasinya. Semua hak dilindungi undang-undang.