Boto3 Data Pipelines - Intermediate to Advanced

1. How can you create an S3 bucket using Boto3?

Use the Boto3 `create_bucket` method to create an S3 bucket.

import boto3

s3 = boto3.client('s3')
bucket_name = "my-new-bucket"
s3.create_bucket(Bucket=bucket_name)

2. How can you upload a file to an S3 bucket in Boto3?

You can use the `upload_file` method to upload files to S3.

import boto3

s3 = boto3.client('s3')
bucket_name = "my-existing-bucket"
file_path = "path/to/file.txt"
s3.upload_file(file_path, bucket_name, 'file.txt')

3. How do you download a file from an S3 bucket using Boto3?

The `download_file` method can be used to download files from S3.

import boto3

s3 = boto3.client('s3')
bucket_name = "my-existing-bucket"
file_key = "file.txt"
output_file = "downloaded_file.txt"
s3.download_file(bucket_name, file_key, output_file)

4. How can you list all the S3 buckets in your AWS account?

Use the `list_buckets` method to retrieve a list of all S3 buckets.

import boto3

s3 = boto3.client('s3')
buckets = s3.list_buckets()

for bucket in buckets['Buckets']:
    print(bucket['Name'])

5. How do you copy an object between S3 buckets?

Use the `copy` method to copy objects from one bucket to another.

import boto3

s3 = boto3.client('s3')
copy_source = {
    'Bucket': 'source-bucket',
    'Key': 'source-file.txt'
}
s3.copy(copy_source, 'destination-bucket', 'destination-file.txt')

6. How do you generate a presigned URL for downloading an S3 object?

Use the `generate_presigned_url` method to generate a temporary URL for accessing an S3 object.

import boto3

s3 = boto3.client('s3')
url = s3.generate_presigned_url('get_object',
                                Params={'Bucket': 'my-bucket', 'Key': 'file.txt'},
                                ExpiresIn=3600)
print(url)

7. How can you delete an S3 object using Boto3?

Use the `delete_object` method to remove an object from an S3 bucket.

import boto3

s3 = boto3.client('s3')
s3.delete_object(Bucket='my-bucket', Key='file.txt')

8. How can you list objects in an S3 bucket using Boto3?

Use the `list_objects_v2` method to list objects within an S3 bucket.

import boto3

s3 = boto3.client('s3')
response = s3.list_objects_v2(Bucket='my-bucket')

for content in response.get('Contents', []):
    print(content['Key'])

9. How can you create an SNS topic using Boto3?

You can create an SNS topic using the `create_topic` method.

import boto3

sns = boto3.client('sns')
response = sns.create_topic(Name='my-new-topic')
print(response['TopicArn'])

10. How can you publish a message to an SNS topic?

Use the `publish` method to send a message to an SNS topic.

import boto3

sns = boto3.client('sns')
sns.publish(
    TopicArn='arn:aws:sns:us-east-1:123456789012:my-new-topic',
    Message='Hello from Boto3!'
)

11. How can you subscribe an email address to an SNS topic?

Use the `subscribe` method to add a subscription to an SNS topic.

import boto3

sns = boto3.client('sns')
sns.subscribe(
    TopicArn='arn:aws:sns:us-east-1:123456789012:my-new-topic',
    Protocol='email',
    Endpoint='example@example.com'
)

12. How can you list all the subscriptions for an SNS topic?

Use the `list_subscriptions_by_topic` method to list subscriptions for a specific topic.

import boto3

sns = boto3.client('sns')
response = sns.list_subscriptions_by_topic(TopicArn='arn:aws:sns:us-east-1:123456789012:my-new-topic')

for subscription in response['Subscriptions']:
    print(subscription['SubscriptionArn'])

13. How do you delete an SNS topic using Boto3?

Use the `delete_topic` method to delete an SNS topic.

import boto3

sns = boto3.client('sns')
sns.delete_topic(TopicArn='arn:aws:sns:us-east-1:123456789012:my-new-topic')

14. How can you create an SQS queue using Boto3?

Use the `create_queue` method to create an SQS queue.

import boto3

sqs = boto3.client('sqs')
response = sqs.create_queue(QueueName='my-new-queue')
print(response['QueueUrl'])

15. How do you send a message to an SQS queue?

You can use the `send_message` method to send a message to an SQS queue.

import boto3

sqs = boto3.client('sqs')
queue_url = 'https://sqs.us-east-1.amazonaws.com/123456789012/my-new-queue'
sqs.send_message(QueueUrl=queue_url, MessageBody='Hello from Boto3!')

16. How can you retrieve messages from an SQS queue?

Use the `receive_message` method to get messages from an SQS queue.

Boto3 Data Pipelines - Intermediate to Advanced Questions