Code examples for Amazon S3 using AWS SDKs - AWS SDK Code Examples

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

Code examples for Amazon S3 using AWS SDKs

The following code examples show how to use Amazon Simple Storage Service (Amazon S3) with an AWS software development kit (SDK).

Get started

The following code examples show how to get started using Amazon S3.

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. 


package main

import (
	"context"
	"fmt"

	"github.com/aws/aws-sdk-go-v2/config"
	"github.com/aws/aws-sdk-go-v2/service/s3"
)

// main uses the AWS SDK for Go V2 to create an Amazon Simple Storage Service
// (Amazon S3) client and list up to 10 buckets in your account.
// This example uses the default settings specified in your shared credentials
// and config files.
func main() {
	sdkConfig, err := config.LoadDefaultConfig(context.TODO())
	if err != nil {
		fmt.Println("Couldn't load default configuration. Have you set up your AWS account?")
		fmt.Println(err)
		return
	}
	s3Client := s3.NewFromConfig(sdkConfig)
	count := 10
	fmt.Printf("Let's list up to %v buckets for your account.\n", count)
	result, err := s3Client.ListBuckets(context.TODO(), &s3.ListBucketsInput{})
	if err != nil {
		fmt.Printf("Couldn't list buckets for your account. Here's why: %v\n", err)
		return
	}
	if len(result.Buckets) == 0 {
		fmt.Println("You don't have any buckets!")
	} else {
		if count > len(result.Buckets) {
			count = len(result.Buckets)
		}
		for _, bucket := range result.Buckets[:count] {
			fmt.Printf("\t%v\n", *bucket.Name)
		}
	}
}

  • For API details, see ListBuckets 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. 

import boto3

def hello_s3():
    """
    Use the AWS SDK for Python (Boto3) to create an Amazon Simple Storage Service
    (Amazon S3) resource and list the buckets in your account.
    This example uses the default settings specified in your shared credentials
    and config files.
    """
    s3_resource = boto3.resource('s3')
    print("Hello, Amazon S3! Let's list your buckets:")
    for bucket in s3_resource.buckets.all():
        print(f"\t{bucket.name}")

if __name__ == '__main__':
    hello_s3()

  • For API details, see ListBuckets in AWS SDK for Python (Boto3) API Reference.

Code examples