s3_file_handler.py

import boto3
import json

s3_client = boto3.client('s3')

def lambda_handler(event, context):
    # Extract the S3 bucket and object key from the event
    bucket = event['Records'][0]['s3']['bucket']['name']
    key = event['Records'][0]['s3']['object']['key']

    # Perform desired actions on the uploaded file
    process_uploaded_file(bucket, key)

    return {
        "statusCode": 200,
        "body": json.dumps({
            "message": f"File {key} in bucket {bucket} processed successfully"
        })
    }

def process_uploaded_file(bucket, key):
    # Implement your file processing logic here
    pass