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How to use Boto3 to get a list of buckets present in S3 using AWS Client?
Problem Statement − Use Boto3 library in Python to get the list of all buckets present in AWS
Example − Get the name of buckets like – BUCKET_1, BUCKET2, BUCKET_3
Approach/Algorithm to solve this problem
Step 1 − Import boto3 and botocore exceptions to handle exceptions.
Step 2 − Create an AWS session using Boto3 library.
Step 3 − Create an AWS client for S3.
Step 4 − Use the function list_buckets() to store all the properties of buckets in a dictionary like ResponseMetadata, buckets
Step 5 − Use for loop to get only bucket-specific details from the dictionary like Name, Creation Date, etc.
Step 6 − Now, retrieve only Name from the bucket dictionary and store in a list.
Step 7 − Handle any unwanted exception if it occurs
Step 8 − Return the list of buckets_name
Example
The following code gets the list of buckets present in S3 −
import boto3
from botocore.exceptions import ClientError
# To get list of buckets present in AWS using S3 client
def get_buckets_client():
session = boto3.session.Session()
# User can pass customized access key, secret_key and token as well
s3_client = session.client('s3')
try:
response = s3_client.list_buckets()
buckets =[]
for bucket in response['Buckets']
buckets += {bucket["Name"]}
except ClientError:
print("Couldn't get buckets.")
raise
else:
return buckets
print(get_buckets_client())Output
['BUCKET_1', 'BUCKET_2', 'BUCKET_3'……..]
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