### 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
if "Cors" in data:
        cors = data.get("Cors", {})
        new_url_config.update(
            {
                "Cors": {
                    "AllowCredentials": cors.get("AllowCredentials", ["*"]),
                    "AllowHeaders": cors.get("AllowHeaders", ["*"]),
                    "AllowMethods": cors.get("AllowMethods", ["*"]),
                    "AllowOrigins": cors.get("AllowOrigins", ["*"]),
                    "ExposeHeaders": cors.get("ExposeHeaders", []),
                    "MaxAge": cors.get("MaxAge", 0),
                }
            }
        )
    prev_url_config.update(new_url_config)
    response = prev_url_config.copy()
    response.pop("CustomId")
    return response
@app.route("%s/functions/<function>/url" % API_PATH_ROOT_2, methods=["DELETE"])
def delete_url_config(function):
    arn = func_arn(function)
    qualifier = request.args.get("Qualifier")
    q_arn = func_qualifier(function, qualifier)
    arn = q_arn or arn
    lambda_backend = LambdaRegion.get()
    if arn not in lambda_backend.url_configs:
        response = error_response("Function does not exist", 404, "ResourceNotFoundException")
        return response
    lambda_backend.url_configs.pop(arn)
    return {}