To use AWS Lambda with Amazon S3 for event-driven architecture, you can follow these steps:
Create an S3 bucket: First, create an S3 bucket in your AWS account where you want to store your files.
Create a Lambda function: Next, create a Lambda function that will be triggered whenever a new file is uploaded to the S3 bucket. You can write your function in Python, Node.js, or any other supported programming language.
Grant permissions: Make sure to grant the necessary permissions to your Lambda function so that it has access to the S3 bucket. You can do this by creating an IAM role for your Lambda function and attaching a policy that allows it to read/write objects in the S3 bucket.
Set up S3 event notification: Configure S3 to send event notifications to the Lambda function whenever a new file is uploaded to the bucket. You can do this by creating an event notification on the S3 bucket and specifying the Lambda function as the target.
Test the setup: Upload a file to your S3 bucket and verify that the Lambda function is triggered automatically in response to the upload event.
By following these steps, you can create a serverless event-driven architecture using Amazon S3 and AWS Lambda. This setup allows you to build scalable and cost-effective solutions that respond to events in real-time.