[scarface74]

Triggering Lambdas based on SQS events is new - it was just introduced at the end of June of this year.(https://aws.amazon.com/blogs/aws/aws-lambda-adds-amazon-simp...). For the past 14 years you've had to poll for SQS messages.

If you are referring to SNS, you've always been able to send SNS messages to HTTP endpoints. (https://docs.aws.amazon.com/sns/latest/dg/SendMessageToHttp....)