AWS-S3-Lambda_Function

s3_operarion.py script lets you create a new bucket, upload file into a bucket, reverse the file content using lambda function, list all bucket, empty, and delete the bucket.

• This script can run on a local machine that takes a name parameter and a text parameter.
• In whatever account the AWS-CLI has access to on the machine, create command lets you create (if it does not already exist or use the already existing) S3 bucket based on the name parameter. By using the upload command, you can upload a txt file with a random name inside the S3 bucket with the text parameter's contents.
• The script should then check the txt file every second, and once the Lambda function has changed the contents of the file, the script can then display the updated reversed contents of the file (as written by the Lambda function) and exit.

Here I have used Boto3 which is a AWS SDK for Python.

Prerequisites for Installation :

Create lambda function called 's3-trigger' and paste 'lambda_function.py' code into it.

All the required steps for installation are executed using below command.

    pip install -r requirements.txt

Steps to execute the program:

Below are the commands mentioned to do various tasks as per requirements.

Case 1: To Create new S3 Bucket:

    python s3_operations.py create --name sanket123

Case 2: To Upload file into bucket:

First add this bucket's trigger into s3-trigger lambda function. Select 'PUT' as event type while doing it.It checks random name file every second and return the reverse string.

    python s3_operations.py upload --name sanket123 --text hello

Case 3: To List all available bucket:

    python s3_operations.py list

Case 4: To Empty bucket before deletion: ( Required Before deleting any bucket)

    python s3_operations.py empty --name sanket123

Case 5: To Delete bucket:

    python s3_operations.py delete --name sanket123

To Test previous script s3_operations.py:

    python test.py

Issues

    If any error has occurred, please let me know by opening issue.