I agree. Web service hosted on Lambda that, for long running async tasks, uses FIFO SQS (optionally by way of FIFO SNS) connected to the task runner Lambda. Eas

I agree. Web service hosted on Lambda that, for long running async tasks, uses FIFO SQS (optionally by way of FIFO SNS) connected to the task runner Lambda. Easy. It's not hard to deploy like OP claims. Build a Docker image, toss it in ECR, and use AWS CDK to do infra. Done.