99% off our sas analytics frontend is backed by aws lambda. I love not worrying about underlying infrastructure. We have close to 150 lambdas running our api. W

99% off our sas analytics frontend is backed by aws lambda. I love not worrying about underlying infrastructure. We have close to 150 lambdas running our api. We do not use api gateway instead we use apigee. For logging we built a logging module that logs to kinesis then to s3 and elasticsearch. Hardly ever look at cloudwatch, those logs get expensive after a while so we only keep 3 days. We use node, python and java depending on needs. It's a good idea to benchmark your lambdas and determine the resource size, a little bump can have a dramatic difference in execution time but after some point you are just wasting $$$.