This project demonstrates a simple Java-based AWS Lambda function that processes a CSV file from S3 and stores the data in DynamoDB.

1. Create an S3 bucket and upload your CSV file.
2. Create a DynamoDB table with the appropriate schema. Name it YourDynamoDBTableName or modify the Lambda code accordingly.
3. Create an IAM role for the Lambda function with permissions to access S3 and DynamoDB. Use the provided iam_policy.json file for the necessary permissions.
4. Deploy the Lambda function using the AWS CLI:
   • Package your code with Maven: mvn clean package
   • Deploy the package using AWS CLI: aws lambda create-function --function-name csvProcessor --runtime java11 --role [Role ARN] --handler com.example.lambda.LambdaCSVProcessor::handleRequest --zip-file fileb://target/csv-processor-1.0-SNAPSHOT-jar-with-dependencies.jar
5. Configure the Lambda function to trigger on new file uploads in the S3 bucket. This can be done via the AWS Management Console or AWS CLI.

Note: Replace [Role ARN] with the ARN of the IAM role you created.