### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

Basically we want to only run the lambda when an insert is occurring in DynamoDB.
I tested using Dynobase deleting a record and the lambda still triggered.

```
resource "aws_lambda_event_source_mapping" "event-log" {
	event_source_arn  = aws_dynamodb_table.event-log.stream_arn
	function_name     = module.main.lambda-arn
	starting_position = "LATEST"
	enabled = true # change to false when truncating the table in localstack
	maximum_retry_attempts = 1 # limit retry on failure to 1 for now

	# https://dev.to/aws-builders/filtering-dynamodb-streams-before-lambda-p5p
	filter_criteria { # Doesn't seem to work on LocalStack for now
		filter {
			pattern = jsonencode({
				body = {
					eventName : ["INSERT"]
				}
			})
		}
	}
}
```


### 🧑‍💻 Implementation

_No response_

### Anything else?

 https://dev.to/aws-builders/filtering-dynamodb-streams-before-lambda-p5p
return jsonify(data)
@app.route("/<version>/tags/<arn>", methods=["GET"])
def list_tags(version, arn):
    region = LambdaRegion.get()
    lambda_function = region.lambdas.get(arn)
    if not lambda_function:
        return not_found_error(arn)
    result = {"Tags": lambda_function.tags}
    return jsonify(result)
@app.route("/<version>/tags/<arn>", methods=["POST"])
def tag_resource(version, arn):
    region = LambdaRegion.get()
    data = json.loads(request.data)
    tags = data.get("Tags", {})
    if tags:
        lambda_function = region.lambdas.get(arn)
        if not lambda_function:
            return not_found_error(arn)
        if lambda_function:
            lambda_function.tags.update(tags)
    return jsonify({})
@app.route("/<version>/tags/<arn>", methods=["DELETE"])
def untag_resource(version, arn):
    region = LambdaRegion.get()
    tag_keys = request.args.getlist("tagKeys")
    lambda_function = region.lambdas.get(arn)
    if not lambda_function:
        return not_found_error(arn)
    for tag_key in tag_keys:
        lambda_function.tags.pop(tag_key, None)