🚀AWS Lambda S3 File Upload Logger using Python

🚀 Project Overview

In this project, I implemented an AWS Lambda function using Python that automatically logs file upload details whenever a file is uploaded to an Amazon S3 bucket.

This project demonstrates real-time event-driven architecture using AWS services.

🧱 Architecture

Flow:

1. File uploaded to S3 bucket
2. S3 triggers AWS Lambda
3. Lambda extracts file details
4. Logs stored in CloudWatch

Services Used:

• Amazon S3
• AWS Lambda (Python)
• Amazon CloudWatch

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🐍 Lambda Function Code (Python)

python
def lambda_handler(event, context):
    record = event['Records'][0]
    bucket_name = record['s3']['bucket']['name']
    file_name = record['s3']['object']['key']
    file_size = record['s3']['object']['size']

    print(f"Bucket Name: {bucket_name}")
    print(f"File Name: {file_name}")
    print(f"File Size: {file_size} bytes")

📊 CloudWatch Logs Output

After uploading a file to the S3 bucket, the Lambda function logged:

Bucket Name

File Name

File Size

This confirms the function executed successfully.


https://github.com/IrfanPasha05/s3-file-upload-logger