AWS S3 Event Notifications Not Triggering Lambda Function on Object Creation
This might be a silly question, but I'm experiencing an issue where my AWS Lambda function is not being triggered by S3 event notifications when new objects are created in my bucket. I've configured the event notifications in the S3 management console, but the Lambda function does not seem to receive any events. I have attached the Lambda function to the S3 bucket using the following configuration: ```json { "LambdaFunctionConfigurations": [ { "LambdaFunctionArn": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction", "Events": ["s3:ObjectCreated:*"], "Filter": { "Key": { "FilterRules": [ { "Name": "prefix", "Value": "uploads/" } ] } } } ] } ``` I have verified that the permissions allow S3 to invoke the Lambda function by attaching the following policy to the Lambda execution role: ```json { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": "lambda:InvokeFunction", "Resource": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction" } ] } ``` Additionally, I checked the CloudWatch logs for the Lambda function, and there are no entries indicating that it has been invoked at all when new objects are uploaded to the S3 bucket. I'm uploading files directly through the S3 console and have confirmed that they are being stored correctly in the `uploads/` prefix. I also ran the following command to ensure that the S3 bucket has the correct event notification configuration set: ```bash aws s3api get-bucket-notification-configuration --bucket my-bucket ``` The output shows that the Lambda configuration is present. I've tried removing and re-adding the Lambda function to the S3 bucket notifications and even redeploying the Lambda function, but the issue persists. I'm wondering if there are any additional configurations or common pitfalls I might be missing here. Has anyone encountered a similar issue or can suggest any troubleshooting steps? My development environment is Windows. Is there a better approach?